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  #define PyBoolObject                 PyLongObject
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#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY
  #ifndef PyUnicode_InternFromString
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#if PY_VERSION_HEX < 0x030200A4
  typedef long Py_hash_t;
  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
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  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
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#if PY_MAJOR_VERSION >= 3
  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
#else
  #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
#endif
#if CYTHON_USE_ASYNC_SLOTS
  #if PY_VERSION_HEX >= 0x030500B1
    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
  #else
    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
  #endif
#else
  #define __Pyx_PyType_AsAsync(obj) NULL
#endif
#ifndef __Pyx_PyAsyncMethodsStruct
    typedef struct {
        unaryfunc am_await;
        unaryfunc am_aiter;
        unaryfunc am_anext;
    } __Pyx_PyAsyncMethodsStruct;
#endif

#if defined(WIN32) || defined(MS_WINDOWS)
  #define _USE_MATH_DEFINES
#endif
#include <math.h>
#ifdef NAN
#define __PYX_NAN() ((float) NAN)
#else
static CYTHON_INLINE float __PYX_NAN() {
  float value;
  memset(&value, 0xFF, sizeof(value));
  return value;
}
#endif
#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
#define __Pyx_truncl trunc
#else
#define __Pyx_truncl truncl
#endif


#define __PYX_ERR(f_index, lineno, Ln_error) \
{ \
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}

#ifndef __PYX_EXTERN_C
  #ifdef __cplusplus
    #define __PYX_EXTERN_C extern "C"
  #else
    #define __PYX_EXTERN_C extern
  #endif
#endif

#define __PYX_HAVE__sklearn__tree___utils
#define __PYX_HAVE_API__sklearn__tree___utils
/* Early includes */
#include <string.h>
#include <stdio.h>
#include "numpy/arrayobject.h"
#include "numpy/ufuncobject.h"
#include <stdlib.h>
#include <math.h>
#ifdef _OPENMP
#include <omp.h>
#endif /* _OPENMP */

#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
#define CYTHON_WITHOUT_ASSERTIONS
#endif

typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;

#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
#define __PYX_DEFAULT_STRING_ENCODING ""
#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
#define __Pyx_uchar_cast(c) ((unsigned char)c)
#define __Pyx_long_cast(x) ((long)x)
#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
    (sizeof(type) < sizeof(Py_ssize_t))  ||\
    (sizeof(type) > sizeof(Py_ssize_t) &&\
          likely(v < (type)PY_SSIZE_T_MAX ||\
                 v == (type)PY_SSIZE_T_MAX)  &&\
          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
                                v == (type)PY_SSIZE_T_MIN)))  ||\
    (sizeof(type) == sizeof(Py_ssize_t) &&\
          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
                               v == (type)PY_SSIZE_T_MAX)))  )
#if defined (__cplusplus) && __cplusplus >= 201103L
    #include <cstdlib>
    #define __Pyx_sst_abs(value) std::abs(value)
#elif SIZEOF_INT >= SIZEOF_SIZE_T
    #define __Pyx_sst_abs(value) abs(value)
#elif SIZEOF_LONG >= SIZEOF_SIZE_T
    #define __Pyx_sst_abs(value) labs(value)
#elif defined (_MSC_VER)
    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
    #define __Pyx_sst_abs(value) llabs(value)
#elif defined (__GNUC__)
    #define __Pyx_sst_abs(value) __builtin_llabs(value)
#else
    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
#endif
static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
#define __Pyx_PyBytes_FromString        PyBytes_FromString
#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
#if PY_MAJOR_VERSION < 3
    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
#else
    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
#endif
#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
    const Py_UNICODE *u_end = u;
    while (*u_end++) ;
    return (size_t)(u_end - u - 1);
}
#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
#define __Pyx_PySequence_Tuple(obj)\
    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
#if CYTHON_ASSUME_SAFE_MACROS
#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
#else
#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
#endif
#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
#if PY_MAJOR_VERSION >= 3
#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
#else
#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
#endif
#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
static int __Pyx_sys_getdefaultencoding_not_ascii;
static int __Pyx_init_sys_getdefaultencoding_params(void) {
    PyObject* sys;
    PyObject* default_encoding = NULL;
    PyObject* ascii_chars_u = NULL;
    PyObject* ascii_chars_b = NULL;
    const char* default_encoding_c;
    sys = PyImport_ImportModule("sys");
    if (!sys) goto bad;
    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
    Py_DECREF(sys);
    if (!default_encoding) goto bad;
    default_encoding_c = PyBytes_AsString(default_encoding);
    if (!default_encoding_c) goto bad;
    if (strcmp(default_encoding_c, "ascii") == 0) {
        __Pyx_sys_getdefaultencoding_not_ascii = 0;
    } else {
        char ascii_chars[128];
        int c;
        for (c = 0; c < 128; c++) {
            ascii_chars[c] = c;
        }
        __Pyx_sys_getdefaultencoding_not_ascii = 1;
        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
        if (!ascii_chars_u) goto bad;
        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
            PyErr_Format(
                PyExc_ValueError,
                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
                default_encoding_c);
            goto bad;
        }
        Py_DECREF(ascii_chars_u);
        Py_DECREF(ascii_chars_b);
    }
    Py_DECREF(default_encoding);
    return 0;
bad:
    Py_XDECREF(default_encoding);
    Py_XDECREF(ascii_chars_u);
    Py_XDECREF(ascii_chars_b);
    return -1;
}
#endif
#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
#else
#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
static char* __PYX_DEFAULT_STRING_ENCODING;
static int __Pyx_init_sys_getdefaultencoding_params(void) {
    PyObject* sys;
    PyObject* default_encoding = NULL;
    char* default_encoding_c;
    sys = PyImport_ImportModule("sys");
    if (!sys) goto bad;
    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
    Py_DECREF(sys);
    if (!default_encoding) goto bad;
    default_encoding_c = PyBytes_AsString(default_encoding);
    if (!default_encoding_c) goto bad;
    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
    Py_DECREF(default_encoding);
    return 0;
bad:
    Py_XDECREF(default_encoding);
    return -1;
}
#endif
#endif


/* Test for GCC > 2.95 */
#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
  #define likely(x)   __builtin_expect(!!(x), 1)
  #define unlikely(x) __builtin_expect(!!(x), 0)
#else /* !__GNUC__ or GCC < 2.95 */
  #define likely(x)   (x)
  #define unlikely(x) (x)
#endif /* __GNUC__ */
static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }

static PyObject *__pyx_m = NULL;
static PyObject *__pyx_d;
static PyObject *__pyx_b;
static PyObject *__pyx_cython_runtime = NULL;
static PyObject *__pyx_empty_tuple;
static PyObject *__pyx_empty_bytes;
static PyObject *__pyx_empty_unicode;
static int __pyx_lineno;
static int __pyx_clineno = 0;
static const char * __pyx_cfilenm= __FILE__;
static const char *__pyx_filename;

/* Header.proto */
#if !defined(CYTHON_CCOMPLEX)
  #if defined(__cplusplus)
    #define CYTHON_CCOMPLEX 1
  #elif defined(_Complex_I)
    #define CYTHON_CCOMPLEX 1
  #else
    #define CYTHON_CCOMPLEX 0
  #endif
#endif
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    #include <complex>
  #else
    #include <complex.h>
  #endif
#endif
#if CYTHON_CCOMPLEX && !defined(__cplusplus) && defined(__sun__) && defined(__GNUC__)
  #undef _Complex_I
  #define _Complex_I 1.0fj
#endif


static const char *__pyx_f[] = {
  "sklearn/tree/_utils.pyx",
  "stringsource",
  "__init__.pxd",
  "type.pxd",
  "sklearn/tree/_criterion.pxd",
  "sklearn/tree/_splitter.pxd",
  "sklearn/tree/_tree.pxd",
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};
/* ForceInitThreads.proto */
#ifndef __PYX_FORCE_INIT_THREADS
  #define __PYX_FORCE_INIT_THREADS 0
#endif

/* NoFastGil.proto */
#define __Pyx_PyGILState_Ensure PyGILState_Ensure
#define __Pyx_PyGILState_Release PyGILState_Release
#define __Pyx_FastGIL_Remember()
#define __Pyx_FastGIL_Forget()
#define __Pyx_FastGilFuncInit()


/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":730
 * # in Cython to enable them only on the right systems.
 * 
 * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 */
typedef npy_int8 __pyx_t_5numpy_int8_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":731
 * 
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t
 */
typedef npy_int16 __pyx_t_5numpy_int16_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":732
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int64      int64_t
 * #ctypedef npy_int96      int96_t
 */
typedef npy_int32 __pyx_t_5numpy_int32_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":733
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_int96      int96_t
 * #ctypedef npy_int128     int128_t
 */
typedef npy_int64 __pyx_t_5numpy_int64_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":737
 * #ctypedef npy_int128     int128_t
 * 
 * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 */
typedef npy_uint8 __pyx_t_5numpy_uint8_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":738
 * 
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t
 */
typedef npy_uint16 __pyx_t_5numpy_uint16_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":739
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint64     uint64_t
 * #ctypedef npy_uint96     uint96_t
 */
typedef npy_uint32 __pyx_t_5numpy_uint32_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":740
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_uint96     uint96_t
 * #ctypedef npy_uint128    uint128_t
 */
typedef npy_uint64 __pyx_t_5numpy_uint64_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":744
 * #ctypedef npy_uint128    uint128_t
 * 
 * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_float64    float64_t
 * #ctypedef npy_float80    float80_t
 */
typedef npy_float32 __pyx_t_5numpy_float32_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":745
 * 
 * ctypedef npy_float32    float32_t
 * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_float80    float80_t
 * #ctypedef npy_float128   float128_t
 */
typedef npy_float64 __pyx_t_5numpy_float64_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":754
 * # The int types are mapped a bit surprising --
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longlong   long_t
 * ctypedef npy_longlong   longlong_t
 */
typedef npy_long __pyx_t_5numpy_int_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":755
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t
 * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longlong   longlong_t
 * 
 */
typedef npy_longlong __pyx_t_5numpy_long_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":756
 * ctypedef npy_long       int_t
 * ctypedef npy_longlong   long_t
 * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_ulong      uint_t
 */
typedef npy_longlong __pyx_t_5numpy_longlong_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":758
 * ctypedef npy_longlong   longlong_t
 * 
 * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
 * ctypedef npy_ulonglong  ulong_t
 * ctypedef npy_ulonglong  ulonglong_t
 */
typedef npy_ulong __pyx_t_5numpy_uint_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":759
 * 
 * ctypedef npy_ulong      uint_t
 * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 */
typedef npy_ulonglong __pyx_t_5numpy_ulong_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":760
 * ctypedef npy_ulong      uint_t
 * ctypedef npy_ulonglong  ulong_t
 * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_intp       intp_t
 */
typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":762
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uintp      uintp_t
 * 
 */
typedef npy_intp __pyx_t_5numpy_intp_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":763
 * 
 * ctypedef npy_intp       intp_t
 * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_double     float_t
 */
typedef npy_uintp __pyx_t_5numpy_uintp_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":765
 * ctypedef npy_uintp      uintp_t
 * 
 * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t
 */
typedef npy_double __pyx_t_5numpy_float_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":766
 * 
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longdouble longdouble_t
 * 
 */
typedef npy_double __pyx_t_5numpy_double_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":767
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cfloat      cfloat_t
 */
typedef npy_longdouble __pyx_t_5numpy_longdouble_t;

/* "_criterion.pxd":15
 * cimport numpy as np
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X             # <<<<<<<<<<<<<<
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 */
typedef npy_float32 __pyx_t_7sklearn_4tree_10_criterion_DTYPE_t;

/* "_criterion.pxd":16
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight             # <<<<<<<<<<<<<<
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 */
typedef npy_float64 __pyx_t_7sklearn_4tree_10_criterion_DOUBLE_t;

/* "_criterion.pxd":17
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters             # <<<<<<<<<<<<<<
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 */
typedef npy_intp __pyx_t_7sklearn_4tree_10_criterion_SIZE_t;

/* "_criterion.pxd":18
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer             # <<<<<<<<<<<<<<
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 */
typedef npy_int32 __pyx_t_7sklearn_4tree_10_criterion_INT32_t;

/* "_criterion.pxd":19
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer             # <<<<<<<<<<<<<<
 * 
 * cdef class Criterion:
 */
typedef npy_uint32 __pyx_t_7sklearn_4tree_10_criterion_UINT32_t;

/* "_splitter.pxd":17
 * from ._criterion cimport Criterion
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X             # <<<<<<<<<<<<<<
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 */
typedef npy_float32 __pyx_t_7sklearn_4tree_9_splitter_DTYPE_t;

/* "_splitter.pxd":18
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight             # <<<<<<<<<<<<<<
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 */
typedef npy_float64 __pyx_t_7sklearn_4tree_9_splitter_DOUBLE_t;

/* "_splitter.pxd":19
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters             # <<<<<<<<<<<<<<
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 */
typedef npy_intp __pyx_t_7sklearn_4tree_9_splitter_SIZE_t;

/* "_splitter.pxd":20
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer             # <<<<<<<<<<<<<<
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 */
typedef npy_int32 __pyx_t_7sklearn_4tree_9_splitter_INT32_t;

/* "_splitter.pxd":21
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer             # <<<<<<<<<<<<<<
 * 
 * cdef struct SplitRecord:
 */
typedef npy_uint32 __pyx_t_7sklearn_4tree_9_splitter_UINT32_t;

/* "_tree.pxd":16
 * cimport numpy as np
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X             # <<<<<<<<<<<<<<
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 */
typedef npy_float32 __pyx_t_7sklearn_4tree_5_tree_DTYPE_t;

/* "_tree.pxd":17
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight             # <<<<<<<<<<<<<<
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 */
typedef npy_float64 __pyx_t_7sklearn_4tree_5_tree_DOUBLE_t;

/* "_tree.pxd":18
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters             # <<<<<<<<<<<<<<
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 */
typedef npy_intp __pyx_t_7sklearn_4tree_5_tree_SIZE_t;

/* "_tree.pxd":19
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer             # <<<<<<<<<<<<<<
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 */
typedef npy_int32 __pyx_t_7sklearn_4tree_5_tree_INT32_t;

/* "_tree.pxd":20
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer             # <<<<<<<<<<<<<<
 * 
 * from ._splitter cimport Splitter
 */
typedef npy_uint32 __pyx_t_7sklearn_4tree_5_tree_UINT32_t;

/* "sklearn/neighbors/quad_tree.pxd":12
 * cimport numpy as np
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X             # <<<<<<<<<<<<<<
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 */
typedef npy_float32 __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t;

/* "sklearn/neighbors/quad_tree.pxd":13
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters             # <<<<<<<<<<<<<<
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 */
typedef npy_intp __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t;

/* "sklearn/neighbors/quad_tree.pxd":14
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer             # <<<<<<<<<<<<<<
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 */
typedef npy_int32 __pyx_t_7sklearn_9neighbors_9quad_tree_INT32_t;

/* "sklearn/neighbors/quad_tree.pxd":15
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer             # <<<<<<<<<<<<<<
 * 
 * # This is effectively an ifdef statement in Cython
 */
typedef npy_uint32 __pyx_t_7sklearn_9neighbors_9quad_tree_UINT32_t;

/* "sklearn/tree/_utils.pxd":16
 * from sklearn.neighbors.quad_tree cimport Cell
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X             # <<<<<<<<<<<<<<
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 */
typedef npy_float32 __pyx_t_7sklearn_4tree_6_utils_DTYPE_t;

/* "sklearn/tree/_utils.pxd":17
 * 
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight             # <<<<<<<<<<<<<<
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 */
typedef npy_float64 __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t;

/* "sklearn/tree/_utils.pxd":18
 * ctypedef np.npy_float32 DTYPE_t          # Type of X
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters             # <<<<<<<<<<<<<<
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 */
typedef npy_intp __pyx_t_7sklearn_4tree_6_utils_SIZE_t;

/* "sklearn/tree/_utils.pxd":19
 * ctypedef np.npy_float64 DOUBLE_t         # Type of y, sample_weight
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer             # <<<<<<<<<<<<<<
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 */
typedef npy_int32 __pyx_t_7sklearn_4tree_6_utils_INT32_t;

/* "sklearn/tree/_utils.pxd":20
 * ctypedef np.npy_intp SIZE_t              # Type for indices and counters
 * ctypedef np.npy_int32 INT32_t            # Signed 32 bit integer
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer             # <<<<<<<<<<<<<<
 * 
 * cdef enum:
 */
typedef npy_uint32 __pyx_t_7sklearn_4tree_6_utils_UINT32_t;
/* Declarations.proto */
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    typedef ::std::complex< float > __pyx_t_float_complex;
  #else
    typedef float _Complex __pyx_t_float_complex;
  #endif
#else
    typedef struct { float real, imag; } __pyx_t_float_complex;
#endif
static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float, float);

/* Declarations.proto */
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    typedef ::std::complex< double > __pyx_t_double_complex;
  #else
    typedef double _Complex __pyx_t_double_complex;
  #endif
#else
    typedef struct { double real, imag; } __pyx_t_double_complex;
#endif
static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double, double);


/*--- Type declarations ---*/
struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion;
struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter;
struct __pyx_obj_7sklearn_4tree_5_tree_Tree;
struct __pyx_obj_7sklearn_4tree_5_tree_TreeBuilder;
struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree;
struct __pyx_obj_7sklearn_4tree_6_utils_Stack;
struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap;
struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue;
struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":769
 * ctypedef npy_longdouble longdouble_t
 * 
 * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t
 */
typedef npy_cfloat __pyx_t_5numpy_cfloat_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":770
 * 
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
 * ctypedef npy_clongdouble clongdouble_t
 * 
 */
typedef npy_cdouble __pyx_t_5numpy_cdouble_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":771
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cdouble     complex_t
 */
typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":773
 * ctypedef npy_clongdouble clongdouble_t
 * 
 * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew1(a):
 */
typedef npy_cdouble __pyx_t_5numpy_complex_t;
struct __pyx_t_7sklearn_4tree_9_splitter_SplitRecord;
struct __pyx_opt_args_7sklearn_4tree_9_splitter_8Splitter_init;

/* "_splitter.pxd":23
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 * cdef struct SplitRecord:             # <<<<<<<<<<<<<<
 *     # Data to track sample split
 *     SIZE_t feature         # Which feature to split on.
 */
struct __pyx_t_7sklearn_4tree_9_splitter_SplitRecord {
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t feature;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t pos;
  double threshold;
  double improvement;
  double impurity_left;
  double impurity_right;
};

/* "_splitter.pxd":84
 * 
 *     # Methods
 *     cdef int init(self, object X, np.ndarray y,             # <<<<<<<<<<<<<<
 *                   DOUBLE_t* sample_weight,
 *                   np.ndarray X_idx_sorted=*) except -1
 */
struct __pyx_opt_args_7sklearn_4tree_9_splitter_8Splitter_init {
  int __pyx_n;
  PyArrayObject *X_idx_sorted;
};
struct __pyx_t_7sklearn_4tree_5_tree_Node;
struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree__resize_c;
struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree_compute_feature_importances;
struct __pyx_opt_args_7sklearn_4tree_5_tree_11TreeBuilder_build;

/* "_tree.pxd":25
 * from ._splitter cimport SplitRecord
 * 
 * cdef struct Node:             # <<<<<<<<<<<<<<
 *     # Base storage structure for the nodes in a Tree object
 * 
 */
struct __pyx_t_7sklearn_4tree_5_tree_Node {
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t left_child;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t right_child;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t feature;
  __pyx_t_7sklearn_4tree_5_tree_DOUBLE_t threshold;
  __pyx_t_7sklearn_4tree_5_tree_DOUBLE_t impurity;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t n_node_samples;
  __pyx_t_7sklearn_4tree_5_tree_DOUBLE_t weighted_n_node_samples;
};

/* "_tree.pxd":63
 *                           double weighted_n_samples) nogil except -1
 *     cdef int _resize(self, SIZE_t capacity) nogil except -1
 *     cdef int _resize_c(self, SIZE_t capacity=*) nogil except -1             # <<<<<<<<<<<<<<
 * 
 *     cdef np.ndarray _get_value_ndarray(self)
 */
struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree__resize_c {
  int __pyx_n;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t capacity;
};

/* "_tree.pxd":78
 *     cdef object _decision_path_sparse_csr(self, object X)
 * 
 *     cpdef compute_feature_importances(self, normalize=*)             # <<<<<<<<<<<<<<
 * 
 * 
 */
struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree_compute_feature_importances {
  int __pyx_n;
  PyObject *normalize;
};

/* "_tree.pxd":102
 *     cdef double min_impurity_decrease   # Impurity threshold for early stopping
 * 
 *     cpdef build(self, Tree tree, object X, np.ndarray y,             # <<<<<<<<<<<<<<
 *                 np.ndarray sample_weight=*,
 *                 np.ndarray X_idx_sorted=*)
 */
struct __pyx_opt_args_7sklearn_4tree_5_tree_11TreeBuilder_build {
  int __pyx_n;
  PyArrayObject *sample_weight;
  PyArrayObject *X_idx_sorted;
};
struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell;
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_insert_point;
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__insert_point_in_new_child;
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_summarize;
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__resize_c;
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__get_cell;

/* "sklearn/neighbors/quad_tree.pxd":20
 * # It allows us to write printf debugging lines
 * # and remove them at compile time
 * cdef enum:             # <<<<<<<<<<<<<<
 *     DEBUGFLAG = 0
 * 
 */
enum  {
  __pyx_e_7sklearn_9neighbors_9quad_tree_DEBUGFLAG = 0
};

/* "sklearn/neighbors/quad_tree.pxd":28
 * # have is_leaf and max_width consecutive as it permits to avoid padding by
 * # the compiler and keep the size coherent for both C and numpy data structures.
 * cdef struct Cell:             # <<<<<<<<<<<<<<
 *     # Base storage stucture for cells in a QuadTree object
 * 
 */
struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell {
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t parent;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t children[8];
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t cell_id;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t point_index;
  int is_leaf;
  __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t squared_max_width;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t depth;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t cumulative_size;
  __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t center[3];
  __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t barycenter[3];
  __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t min_bounds[3];
  __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t max_bounds[3];
};

/* "sklearn/neighbors/quad_tree.pxd":74
 * 
 *     # Point insertion methods
 *     cdef int insert_point(self, DTYPE_t[3] point, SIZE_t point_index,             # <<<<<<<<<<<<<<
 *                           SIZE_t cell_id=*) nogil except -1
 *     cdef SIZE_t _insert_point_in_new_child(self, DTYPE_t[3] point, Cell* cell,
 */
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_insert_point {
  int __pyx_n;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t cell_id;
};

/* "sklearn/neighbors/quad_tree.pxd":76
 *     cdef int insert_point(self, DTYPE_t[3] point, SIZE_t point_index,
 *                           SIZE_t cell_id=*) nogil except -1
 *     cdef SIZE_t _insert_point_in_new_child(self, DTYPE_t[3] point, Cell* cell,             # <<<<<<<<<<<<<<
 *                                            SIZE_t point_index, SIZE_t size=*
 *                                            ) nogil
 */
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__insert_point_in_new_child {
  int __pyx_n;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t size;
};

/* "sklearn/neighbors/quad_tree.pxd":83
 * 
 *     # Create a summary of the Tree compare to a query point
 *     cdef long summarize(self, DTYPE_t[3] point, DTYPE_t* results,             # <<<<<<<<<<<<<<
 *                         float squared_theta=*, int cell_id=*, long idx=*
 *                         ) nogil
 */
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_summarize {
  int __pyx_n;
  float squared_theta;
  int cell_id;
  long idx;
};

/* "sklearn/neighbors/quad_tree.pxd":98
 *     # Private array manipulation to manage the ``cells`` array
 *     cdef int _resize(self, SIZE_t capacity) nogil except -1
 *     cdef int _resize_c(self, SIZE_t capacity=*) nogil except -1             # <<<<<<<<<<<<<<
 *     cdef int _get_cell(self, DTYPE_t[3] point, SIZE_t cell_id=*) nogil except -1
 *     cdef np.ndarray _get_cell_ndarray(self)
 */
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__resize_c {
  int __pyx_n;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t capacity;
};

/* "sklearn/neighbors/quad_tree.pxd":99
 *     cdef int _resize(self, SIZE_t capacity) nogil except -1
 *     cdef int _resize_c(self, SIZE_t capacity=*) nogil except -1
 *     cdef int _get_cell(self, DTYPE_t[3] point, SIZE_t cell_id=*) nogil except -1             # <<<<<<<<<<<<<<
 *     cdef np.ndarray _get_cell_ndarray(self)
 */
struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__get_cell {
  int __pyx_n;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t cell_id;
};
struct __pyx_t_7sklearn_4tree_6_utils_StackRecord;
struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord;
struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord;

/* "sklearn/tree/_utils.pxd":22
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 * cdef enum:             # <<<<<<<<<<<<<<
 *     # Max value for our rand_r replacement (near the bottom).
 *     # We don't use RAND_MAX because it's different across platforms and
 */
enum  {
  __pyx_e_7sklearn_4tree_6_utils_RAND_R_MAX = 0x7FFFFFFF
};

/* "sklearn/tree/_utils.pxd":69
 * 
 * # A record on the stack for depth-first tree growing
 * cdef struct StackRecord:             # <<<<<<<<<<<<<<
 *     SIZE_t start
 *     SIZE_t end
 */
struct __pyx_t_7sklearn_4tree_6_utils_StackRecord {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t start;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t end;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t depth;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t parent;
  int is_left;
  double impurity;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t n_constant_features;
};

/* "sklearn/tree/_utils.pxd":95
 * 
 * # A record on the frontier for best-first tree growing
 * cdef struct PriorityHeapRecord:             # <<<<<<<<<<<<<<
 *     SIZE_t node_id
 *     SIZE_t start
 */
struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t node_id;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t start;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t end;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t pos;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t depth;
  int is_leaf;
  double impurity;
  double impurity_left;
  double impurity_right;
  double improvement;
};

/* "sklearn/tree/_utils.pxd":126
 * 
 * # A record stored in the WeightedPQueue
 * cdef struct WeightedPQueueRecord:             # <<<<<<<<<<<<<<
 *     DOUBLE_t data
 *     DOUBLE_t weight
 */
struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord {
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t data;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t weight;
};

/* "_criterion.pxd":21
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 * cdef class Criterion:             # <<<<<<<<<<<<<<
 *     # The criterion computes the impurity of a node and the reduction of
 *     # impurity of a split on that node. It also computes the output statistics
 */
struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_10_criterion_Criterion *__pyx_vtab;
  __pyx_t_7sklearn_4tree_10_criterion_DOUBLE_t *y;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t y_stride;
  __pyx_t_7sklearn_4tree_10_criterion_DOUBLE_t *sample_weight;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t *samples;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t start;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t pos;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t end;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t n_outputs;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t n_samples;
  __pyx_t_7sklearn_4tree_10_criterion_SIZE_t n_node_samples;
  double weighted_n_samples;
  double weighted_n_node_samples;
  double weighted_n_left;
  double weighted_n_right;
  double *sum_total;
  double *sum_left;
  double *sum_right;
};


/* "_splitter.pxd":34
 *     double impurity_right  # Impurity of the right split.
 * 
 * cdef class Splitter:             # <<<<<<<<<<<<<<
 *     # The splitter searches in the input space for a feature and a threshold
 *     # to split the samples samples[start:end].
 */
struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_9_splitter_Splitter *__pyx_vtab;
  struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *criterion;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t max_features;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t min_samples_leaf;
  double min_weight_leaf;
  PyObject *random_state;
  __pyx_t_7sklearn_4tree_9_splitter_UINT32_t rand_r_state;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t *samples;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t n_samples;
  double weighted_n_samples;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t *features;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t *constant_features;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t n_features;
  __pyx_t_7sklearn_4tree_9_splitter_DTYPE_t *feature_values;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t start;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t end;
  int presort;
  __pyx_t_7sklearn_4tree_9_splitter_DOUBLE_t *y;
  __pyx_t_7sklearn_4tree_9_splitter_SIZE_t y_stride;
  __pyx_t_7sklearn_4tree_9_splitter_DOUBLE_t *sample_weight;
};


/* "_tree.pxd":37
 * 
 * 
 * cdef class Tree:             # <<<<<<<<<<<<<<
 *     # The Tree object is a binary tree structure constructed by the
 *     # TreeBuilder. The tree structure is used for predictions and
 */
struct __pyx_obj_7sklearn_4tree_5_tree_Tree {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_5_tree_Tree *__pyx_vtab;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t n_features;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t *n_classes;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t n_outputs;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t max_n_classes;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t max_depth;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t node_count;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t capacity;
  struct __pyx_t_7sklearn_4tree_5_tree_Node *nodes;
  double *value;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t value_stride;
};


/* "_tree.pxd":85
 * # =============================================================================
 * 
 * cdef class TreeBuilder:             # <<<<<<<<<<<<<<
 *     # The TreeBuilder recursively builds a Tree object from training samples,
 *     # using a Splitter object for splitting internal nodes and assigning
 */
struct __pyx_obj_7sklearn_4tree_5_tree_TreeBuilder {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_5_tree_TreeBuilder *__pyx_vtab;
  struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *splitter;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t min_samples_split;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t min_samples_leaf;
  double min_weight_leaf;
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t max_depth;
  double min_impurity_split;
  double min_impurity_decrease;
};


/* "sklearn/neighbors/quad_tree.pxd":54
 * 
 * 
 * cdef class _QuadTree:             # <<<<<<<<<<<<<<
 *     # The QuadTree object is a quad tree structure constructed by inserting
 *     # recursively points in the tree and splitting cells in 4 so that each
 */
struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_9neighbors_9quad_tree__QuadTree *__pyx_vtab;
  int n_dimensions;
  int verbose;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t n_cells_per_cell;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t max_depth;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t cell_count;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t capacity;
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t n_points;
  struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *cells;
};


/* "sklearn/tree/_utils.pxd":78
 *     SIZE_t n_constant_features
 * 
 * cdef class Stack:             # <<<<<<<<<<<<<<
 *     cdef SIZE_t capacity
 *     cdef SIZE_t top
 */
struct __pyx_obj_7sklearn_4tree_6_utils_Stack {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_6_utils_Stack *__pyx_vtab;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t capacity;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t top;
  struct __pyx_t_7sklearn_4tree_6_utils_StackRecord *stack_;
};


/* "sklearn/tree/_utils.pxd":107
 *     double improvement
 * 
 * cdef class PriorityHeap:             # <<<<<<<<<<<<<<
 *     cdef SIZE_t capacity
 *     cdef SIZE_t heap_ptr
 */
struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_6_utils_PriorityHeap *__pyx_vtab;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t capacity;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t heap_ptr;
  struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *heap_;
};


/* "sklearn/tree/_utils.pxd":130
 *     DOUBLE_t weight
 * 
 * cdef class WeightedPQueue:             # <<<<<<<<<<<<<<
 *     cdef SIZE_t capacity
 *     cdef SIZE_t array_ptr
 */
struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_vtab;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t capacity;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t array_ptr;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *array_;
};


/* "sklearn/tree/_utils.pxd":150
 * # =============================================================================
 * 
 * cdef class WeightedMedianCalculator:             # <<<<<<<<<<<<<<
 *     cdef SIZE_t initial_capacity
 *     cdef WeightedPQueue samples
 */
struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator {
  PyObject_HEAD
  struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_vtab;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t initial_capacity;
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *samples;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t total_weight;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t k;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t sum_w_0_k;
};



/* "_criterion.pxd":21
 * ctypedef np.npy_uint32 UINT32_t          # Unsigned 32 bit integer
 * 
 * cdef class Criterion:             # <<<<<<<<<<<<<<
 *     # The criterion computes the impurity of a node and the reduction of
 *     # impurity of a split on that node. It also computes the output statistics
 */

struct __pyx_vtabstruct_7sklearn_4tree_10_criterion_Criterion {
  int (*init)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *, __pyx_t_7sklearn_4tree_10_criterion_DOUBLE_t *, __pyx_t_7sklearn_4tree_10_criterion_SIZE_t, __pyx_t_7sklearn_4tree_10_criterion_DOUBLE_t *, double, __pyx_t_7sklearn_4tree_10_criterion_SIZE_t *, __pyx_t_7sklearn_4tree_10_criterion_SIZE_t, __pyx_t_7sklearn_4tree_10_criterion_SIZE_t);
  int (*reset)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *);
  int (*reverse_reset)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *);
  int (*update)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *, __pyx_t_7sklearn_4tree_10_criterion_SIZE_t);
  double (*node_impurity)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *);
  void (*children_impurity)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *, double *, double *);
  void (*node_value)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *, double *);
  double (*impurity_improvement)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *, double);
  double (*proxy_impurity_improvement)(struct __pyx_obj_7sklearn_4tree_10_criterion_Criterion *);
};
static struct __pyx_vtabstruct_7sklearn_4tree_10_criterion_Criterion *__pyx_vtabptr_7sklearn_4tree_10_criterion_Criterion;


/* "_splitter.pxd":34
 *     double impurity_right  # Impurity of the right split.
 * 
 * cdef class Splitter:             # <<<<<<<<<<<<<<
 *     # The splitter searches in the input space for a feature and a threshold
 *     # to split the samples samples[start:end].
 */

struct __pyx_vtabstruct_7sklearn_4tree_9_splitter_Splitter {
  int (*init)(struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *, PyObject *, PyArrayObject *, __pyx_t_7sklearn_4tree_9_splitter_DOUBLE_t *, struct __pyx_opt_args_7sklearn_4tree_9_splitter_8Splitter_init *__pyx_optional_args);
  int (*node_reset)(struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *, __pyx_t_7sklearn_4tree_9_splitter_SIZE_t, __pyx_t_7sklearn_4tree_9_splitter_SIZE_t, double *);
  int (*node_split)(struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *, double, struct __pyx_t_7sklearn_4tree_9_splitter_SplitRecord *, __pyx_t_7sklearn_4tree_9_splitter_SIZE_t *);
  void (*node_value)(struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *, double *);
  double (*node_impurity)(struct __pyx_obj_7sklearn_4tree_9_splitter_Splitter *);
};
static struct __pyx_vtabstruct_7sklearn_4tree_9_splitter_Splitter *__pyx_vtabptr_7sklearn_4tree_9_splitter_Splitter;


/* "_tree.pxd":37
 * 
 * 
 * cdef class Tree:             # <<<<<<<<<<<<<<
 *     # The Tree object is a binary tree structure constructed by the
 *     # TreeBuilder. The tree structure is used for predictions and
 */

struct __pyx_vtabstruct_7sklearn_4tree_5_tree_Tree {
  __pyx_t_7sklearn_4tree_5_tree_SIZE_t (*_add_node)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, __pyx_t_7sklearn_4tree_5_tree_SIZE_t, int, int, __pyx_t_7sklearn_4tree_5_tree_SIZE_t, double, double, __pyx_t_7sklearn_4tree_5_tree_SIZE_t, double);
  int (*_resize)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, __pyx_t_7sklearn_4tree_5_tree_SIZE_t);
  int (*_resize_c)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree__resize_c *__pyx_optional_args);
  PyArrayObject *(*_get_value_ndarray)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *);
  PyArrayObject *(*_get_node_ndarray)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *);
  PyArrayObject *(*predict)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *, int __pyx_skip_dispatch);
  PyArrayObject *(*apply)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *, int __pyx_skip_dispatch);
  PyArrayObject *(*_apply_dense)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *);
  PyArrayObject *(*_apply_sparse_csr)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *);
  PyObject *(*decision_path)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *, int __pyx_skip_dispatch);
  PyObject *(*_decision_path_dense)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *);
  PyObject *(*_decision_path_sparse_csr)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *);
  PyObject *(*compute_feature_importances)(struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, int __pyx_skip_dispatch, struct __pyx_opt_args_7sklearn_4tree_5_tree_4Tree_compute_feature_importances *__pyx_optional_args);
};
static struct __pyx_vtabstruct_7sklearn_4tree_5_tree_Tree *__pyx_vtabptr_7sklearn_4tree_5_tree_Tree;


/* "_tree.pxd":85
 * # =============================================================================
 * 
 * cdef class TreeBuilder:             # <<<<<<<<<<<<<<
 *     # The TreeBuilder recursively builds a Tree object from training samples,
 *     # using a Splitter object for splitting internal nodes and assigning
 */

struct __pyx_vtabstruct_7sklearn_4tree_5_tree_TreeBuilder {
  PyObject *(*build)(struct __pyx_obj_7sklearn_4tree_5_tree_TreeBuilder *, struct __pyx_obj_7sklearn_4tree_5_tree_Tree *, PyObject *, PyArrayObject *, int __pyx_skip_dispatch, struct __pyx_opt_args_7sklearn_4tree_5_tree_11TreeBuilder_build *__pyx_optional_args);
  PyObject *(*_check_input)(struct __pyx_obj_7sklearn_4tree_5_tree_TreeBuilder *, PyObject *, PyArrayObject *, PyArrayObject *);
};
static struct __pyx_vtabstruct_7sklearn_4tree_5_tree_TreeBuilder *__pyx_vtabptr_7sklearn_4tree_5_tree_TreeBuilder;


/* "sklearn/neighbors/quad_tree.pxd":54
 * 
 * 
 * cdef class _QuadTree:             # <<<<<<<<<<<<<<
 *     # The QuadTree object is a quad tree structure constructed by inserting
 *     # recursively points in the tree and splitting cells in 4 so that each
 */

struct __pyx_vtabstruct_7sklearn_9neighbors_9quad_tree__QuadTree {
  int (*insert_point)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t, struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_insert_point *__pyx_optional_args);
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t (*_insert_point_in_new_child)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *, __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t, struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__insert_point_in_new_child *__pyx_optional_args);
  __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t (*_select_child)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *);
  int (*_is_duplicate)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *);
  long (*summarize)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree_summarize *__pyx_optional_args);
  void (*_init_cell)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *, __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t, __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t);
  void (*_init_root)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *);
  int (*_check_point_in_cell)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *);
  int (*_resize)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_SIZE_t);
  int (*_resize_c)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__resize_c *__pyx_optional_args);
  int (*_get_cell)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *, __pyx_t_7sklearn_9neighbors_9quad_tree_DTYPE_t *, struct __pyx_opt_args_7sklearn_9neighbors_9quad_tree_9_QuadTree__get_cell *__pyx_optional_args);
  PyArrayObject *(*_get_cell_ndarray)(struct __pyx_obj_7sklearn_9neighbors_9quad_tree__QuadTree *);
};
static struct __pyx_vtabstruct_7sklearn_9neighbors_9quad_tree__QuadTree *__pyx_vtabptr_7sklearn_9neighbors_9quad_tree__QuadTree;


/* "sklearn/tree/_utils.pyx":93
 * # =============================================================================
 * 
 * cdef class Stack:             # <<<<<<<<<<<<<<
 *     """A LIFO data structure.
 * 
 */

struct __pyx_vtabstruct_7sklearn_4tree_6_utils_Stack {
  int (*is_empty)(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *);
  int (*push)(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, int, double, __pyx_t_7sklearn_4tree_6_utils_SIZE_t);
  int (*pop)(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *, struct __pyx_t_7sklearn_4tree_6_utils_StackRecord *);
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_Stack *__pyx_vtabptr_7sklearn_4tree_6_utils_Stack;


/* "sklearn/tree/_utils.pyx":172
 * # =============================================================================
 * 
 * cdef class PriorityHeap:             # <<<<<<<<<<<<<<
 *     """A priority queue implemented as a binary heap.
 * 
 */

struct __pyx_vtabstruct_7sklearn_4tree_6_utils_PriorityHeap {
  int (*is_empty)(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *);
  void (*heapify_up)(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t);
  void (*heapify_down)(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t);
  int (*push)(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, __pyx_t_7sklearn_4tree_6_utils_SIZE_t, int, double, double, double, double);
  int (*pop)(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *);
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_PriorityHeap *__pyx_vtabptr_7sklearn_4tree_6_utils_PriorityHeap;


/* "sklearn/tree/_utils.pyx":299
 * # =============================================================================
 * 
 * cdef class WeightedPQueue:             # <<<<<<<<<<<<<<
 *     """A priority queue class, always sorted in increasing order.
 * 
 */

struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue {
  int (*is_empty)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *);
  int (*reset)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *);
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t (*size)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *);
  int (*push)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t);
  int (*remove)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t);
  int (*pop)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *);
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/* "sklearn/tree/_utils.pyx":455
 * # =============================================================================
 * 
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 *     """A class to handle calculation of the weighted median from streams of
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 */

struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator {
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  int (*update_median_parameters_post_remove)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t);
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t (*get_median)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *);
};
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#if CYTHON_COMPILING_IN_CPYTHON
#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
#else
#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
#endif
#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)

/* CheckBinaryVersion.proto */
static int __Pyx_check_binary_version(void);

/* FunctionExport.proto */
static int __Pyx_ExportFunction(const char *name, void (*f)(void), const char *sig);

/* PyIdentifierFromString.proto */
#if !defined(__Pyx_PyIdentifier_FromString)
#if PY_MAJOR_VERSION < 3
  #define __Pyx_PyIdentifier_FromString(s) PyString_FromString(s)
#else
  #define __Pyx_PyIdentifier_FromString(s) PyUnicode_FromString(s)
#endif
#endif

/* ModuleImport.proto */
static PyObject *__Pyx_ImportModule(const char *name);

/* TypeImport.proto */
static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict);

/* VoidPtrImport.proto */
static int __Pyx_ImportVoidPtr(PyObject *module, const char *name, void **p, const char *sig);

/* InitStrings.proto */
static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);

static int __pyx_f_7sklearn_4tree_6_utils_5Stack_is_empty(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_5Stack_push(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_start, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_end, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_depth, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_parent, int __pyx_v_is_left, double __pyx_v_impurity, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_n_constant_features); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_5Stack_pop(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self, struct __pyx_t_7sklearn_4tree_6_utils_StackRecord *__pyx_v_res); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_is_empty(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self); /* proto*/
static void __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_heapify_up(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *__pyx_v_heap, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_pos); /* proto*/
static void __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_heapify_down(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *__pyx_v_heap, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_pos, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_heap_length); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_push(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_node_id, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_start, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_end, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_pos, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_depth, int __pyx_v_is_leaf, double __pyx_v_improvement, double __pyx_v_impurity, double __pyx_v_impurity_left, double __pyx_v_impurity_right); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_pop(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *__pyx_v_res); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_reset(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_is_empty(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self); /* proto*/
static __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_size(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_push(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_remove(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_pop(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_peek(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_weight); /* proto*/
static __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_get_weight_from_index(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_index); /* proto*/
static __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_get_value_from_index(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_index); /* proto*/
static __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_size(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_reset(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_push(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_update_median_parameters_post_push(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_original_median); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_remove(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_pop(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_weight); /* proto*/
static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_update_median_parameters_post_remove(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight, double __pyx_v_original_median); /* proto*/
static __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_get_median(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self); /* proto*/

/* Module declarations from 'cpython.buffer' */

/* Module declarations from 'libc.string' */

/* Module declarations from 'libc.stdio' */

/* Module declarations from '__builtin__' */

/* Module declarations from 'cpython.type' */
static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0;

/* Module declarations from 'cpython' */

/* Module declarations from 'cpython.object' */

/* Module declarations from 'cpython.ref' */

/* Module declarations from 'cpython.mem' */

/* Module declarations from 'numpy' */

/* Module declarations from 'numpy' */
static PyTypeObject *__pyx_ptype_5numpy_dtype = 0;
static PyTypeObject *__pyx_ptype_5numpy_flatiter = 0;
static PyTypeObject *__pyx_ptype_5numpy_broadcast = 0;
static PyTypeObject *__pyx_ptype_5numpy_ndarray = 0;
static PyTypeObject *__pyx_ptype_5numpy_ufunc = 0;
static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *, char *, char *, int *); /*proto*/
static CYTHON_INLINE int __pyx_f_5numpy_import_array(void); /*proto*/

/* Module declarations from 'sklearn.tree._criterion' */
static PyTypeObject *__pyx_ptype_7sklearn_4tree_10_criterion_Criterion = 0;

/* Module declarations from 'sklearn.tree._splitter' */
static PyTypeObject *__pyx_ptype_7sklearn_4tree_9_splitter_Splitter = 0;

/* Module declarations from 'sklearn.tree._tree' */
static PyTypeObject *__pyx_ptype_7sklearn_4tree_5_tree_Tree = 0;
static PyTypeObject *__pyx_ptype_7sklearn_4tree_5_tree_TreeBuilder = 0;

/* Module declarations from 'sklearn.neighbors.quad_tree' */
static PyTypeObject *__pyx_ptype_7sklearn_9neighbors_9quad_tree__QuadTree = 0;
static float *__pyx_vp_7sklearn_9neighbors_9quad_tree_EPSILON = 0;
#define __pyx_v_7sklearn_9neighbors_9quad_tree_EPSILON (*__pyx_vp_7sklearn_9neighbors_9quad_tree_EPSILON)

/* Module declarations from 'libc.stdlib' */

/* Module declarations from 'libc.math' */

/* Module declarations from 'sklearn.tree._utils' */
static PyTypeObject *__pyx_ptype_7sklearn_4tree_6_utils_Stack = 0;
static PyTypeObject *__pyx_ptype_7sklearn_4tree_6_utils_PriorityHeap = 0;
static PyTypeObject *__pyx_ptype_7sklearn_4tree_6_utils_WeightedPQueue = 0;
static PyTypeObject *__pyx_ptype_7sklearn_4tree_6_utils_WeightedMedianCalculator = 0;
static CYTHON_INLINE __pyx_t_7sklearn_4tree_6_utils_UINT32_t __pyx_f_7sklearn_4tree_6_utils_our_rand_r(__pyx_t_7sklearn_4tree_6_utils_UINT32_t *); /*proto*/
static __pyx_t_7sklearn_4tree_6_utils_DTYPE_t *__pyx_fuse_0__pyx_f_7sklearn_4tree_6_utils_safe_realloc(__pyx_t_7sklearn_4tree_6_utils_DTYPE_t **, size_t); /*proto*/
static __pyx_t_7sklearn_4tree_6_utils_SIZE_t *__pyx_fuse_1__pyx_f_7sklearn_4tree_6_utils_safe_realloc(__pyx_t_7sklearn_4tree_6_utils_SIZE_t **, size_t); /*proto*/
static unsigned char *__pyx_fuse_2__pyx_f_7sklearn_4tree_6_utils_safe_realloc(unsigned char **, size_t); /*proto*/
static struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_fuse_3__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord **, size_t); /*proto*/
static __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_fuse_4__pyx_f_7sklearn_4tree_6_utils_safe_realloc(__pyx_t_7sklearn_4tree_6_utils_DOUBLE_t **, size_t); /*proto*/
static __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t **__pyx_fuse_5__pyx_f_7sklearn_4tree_6_utils_safe_realloc(__pyx_t_7sklearn_4tree_6_utils_DOUBLE_t ***, size_t); /*proto*/
static struct __pyx_t_7sklearn_4tree_5_tree_Node *__pyx_fuse_6__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_4tree_5_tree_Node **, size_t); /*proto*/
static struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell *__pyx_fuse_7__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_9neighbors_9quad_tree_Cell **, size_t); /*proto*/
static struct __pyx_t_7sklearn_4tree_5_tree_Node **__pyx_fuse_8__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_4tree_5_tree_Node ***, size_t); /*proto*/
static struct __pyx_t_7sklearn_4tree_6_utils_StackRecord *__pyx_fuse_9__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_4tree_6_utils_StackRecord **, size_t); /*proto*/
static struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *__pyx_fuse_10__pyx_f_7sklearn_4tree_6_utils_safe_realloc(struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord **, size_t); /*proto*/
#define __Pyx_MODULE_NAME "sklearn.tree._utils"
extern int __pyx_module_is_main_sklearn__tree___utils;
int __pyx_module_is_main_sklearn__tree___utils = 0;

/* Implementation of 'sklearn.tree._utils' */
static PyObject *__pyx_builtin_MemoryError;
static PyObject *__pyx_builtin_TypeError;
static PyObject *__pyx_builtin_range;
static PyObject *__pyx_builtin_ValueError;
static PyObject *__pyx_builtin_RuntimeError;
static PyObject *__pyx_builtin_ImportError;
static const char __pyx_k_p[] = "p";
static const char __pyx_k_np[] = "np";
static const char __pyx_k_copy[] = "copy";
static const char __pyx_k_main[] = "__main__";
static const char __pyx_k_name[] = "__name__";
static const char __pyx_k_test[] = "__test__";
static const char __pyx_k_numpy[] = "numpy";
static const char __pyx_k_range[] = "range";
static const char __pyx_k_import[] = "__import__";
static const char __pyx_k_reduce[] = "__reduce__";
static const char __pyx_k_capacity[] = "capacity";
static const char __pyx_k_getstate[] = "__getstate__";
static const char __pyx_k_setstate[] = "__setstate__";
static const char __pyx_k_TypeError[] = "TypeError";
static const char __pyx_k_reduce_ex[] = "__reduce_ex__";
static const char __pyx_k_ValueError[] = "ValueError";
static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
static const char __pyx_k_ImportError[] = "ImportError";
static const char __pyx_k_MemoryError[] = "MemoryError";
static const char __pyx_k_RuntimeError[] = "RuntimeError";
static const char __pyx_k_realloc_test[] = "_realloc_test";
static const char __pyx_k_reduce_cython[] = "__reduce_cython__";
static const char __pyx_k_setstate_cython[] = "__setstate_cython__";
static const char __pyx_k_initial_capacity[] = "initial_capacity";
static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
static const char __pyx_k_sklearn_tree__utils[] = "sklearn.tree._utils";
static const char __pyx_k_sklearn_tree__utils_pyx[] = "sklearn/tree/_utils.pyx";
static const char __pyx_k_could_not_allocate_d_bytes[] = "could not allocate %d bytes";
static const char __pyx_k_ndarray_is_not_C_contiguous[] = "ndarray is not C contiguous";
static const char __pyx_k_could_not_allocate_d_d_bytes[] = "could not allocate (%d * %d) bytes";
static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
static const char __pyx_k_unknown_dtype_code_in_numpy_pxd[] = "unknown dtype code in numpy.pxd (%d)";
static const char __pyx_k_Format_string_allocated_too_shor[] = "Format string allocated too short, see comment in numpy.pxd";
static const char __pyx_k_Non_native_byte_order_not_suppor[] = "Non-native byte order not supported";
static const char __pyx_k_ndarray_is_not_Fortran_contiguou[] = "ndarray is not Fortran contiguous";
static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
static const char __pyx_k_Format_string_allocated_too_shor_2[] = "Format string allocated too short.";
static PyObject *__pyx_kp_u_Format_string_allocated_too_shor;
static PyObject *__pyx_kp_u_Format_string_allocated_too_shor_2;
static PyObject *__pyx_n_s_ImportError;
static PyObject *__pyx_n_s_MemoryError;
static PyObject *__pyx_kp_u_Non_native_byte_order_not_suppor;
static PyObject *__pyx_n_s_RuntimeError;
static PyObject *__pyx_n_s_TypeError;
static PyObject *__pyx_n_s_ValueError;
static PyObject *__pyx_n_s_capacity;
static PyObject *__pyx_n_s_cline_in_traceback;
static PyObject *__pyx_n_s_copy;
static PyObject *__pyx_kp_s_could_not_allocate_d_bytes;
static PyObject *__pyx_kp_s_could_not_allocate_d_d_bytes;
static PyObject *__pyx_n_s_getstate;
static PyObject *__pyx_n_s_import;
static PyObject *__pyx_n_s_initial_capacity;
static PyObject *__pyx_n_s_main;
static PyObject *__pyx_n_s_name;
static PyObject *__pyx_kp_u_ndarray_is_not_C_contiguous;
static PyObject *__pyx_kp_u_ndarray_is_not_Fortran_contiguou;
static PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
static PyObject *__pyx_n_s_np;
static PyObject *__pyx_n_s_numpy;
static PyObject *__pyx_kp_s_numpy_core_multiarray_failed_to;
static PyObject *__pyx_kp_s_numpy_core_umath_failed_to_impor;
static PyObject *__pyx_n_s_p;
static PyObject *__pyx_n_s_pyx_vtable;
static PyObject *__pyx_n_s_range;
static PyObject *__pyx_n_s_realloc_test;
static PyObject *__pyx_n_s_reduce;
static PyObject *__pyx_n_s_reduce_cython;
static PyObject *__pyx_n_s_reduce_ex;
static PyObject *__pyx_n_s_setstate;
static PyObject *__pyx_n_s_setstate_cython;
static PyObject *__pyx_n_s_sklearn_tree__utils;
static PyObject *__pyx_kp_s_sklearn_tree__utils_pyx;
static PyObject *__pyx_n_s_test;
static PyObject *__pyx_kp_u_unknown_dtype_code_in_numpy_pxd;
static PyObject *__pyx_pf_7sklearn_4tree_6_utils__realloc_test(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
static int __pyx_pf_7sklearn_4tree_6_utils_5Stack___cinit__(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_capacity); /* proto */
static void __pyx_pf_7sklearn_4tree_6_utils_5Stack_2__dealloc__(struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_7sklearn_4tree_6_utils_5Stack_4__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_7sklearn_4tree_6_utils_5Stack_6__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_7sklearn_4tree_6_utils_Stack *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static int __pyx_pf_7sklearn_4tree_6_utils_12PriorityHeap___cinit__(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_capacity); /* proto */
static void __pyx_pf_7sklearn_4tree_6_utils_12PriorityHeap_2__dealloc__(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_7sklearn_4tree_6_utils_12PriorityHeap_4__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_7sklearn_4tree_6_utils_12PriorityHeap_6__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static int __pyx_pf_7sklearn_4tree_6_utils_14WeightedPQueue___cinit__(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_capacity); /* proto */
static void __pyx_pf_7sklearn_4tree_6_utils_14WeightedPQueue_2__dealloc__(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_7sklearn_4tree_6_utils_14WeightedPQueue_4__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self); /* proto */
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  __pyx_t_1 = __pyx_t_2;
  __pyx_L7_bool_binop_done:;

  /* "sklearn/tree/_utils.pyx":227
 *             largest = left_pos
 * 
 *         if (right_pos < heap_length and             # <<<<<<<<<<<<<<
 *                 heap[right_pos].improvement > heap[largest].improvement):
 *             largest = right_pos
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  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":229
 *         if (right_pos < heap_length and
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 * 
 *         if largest != pos:
 */
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 *             largest = left_pos
 * 
 *         if (right_pos < heap_length and             # <<<<<<<<<<<<<<
 *                 heap[right_pos].improvement > heap[largest].improvement):
 *             largest = right_pos
 */
  }

  /* "sklearn/tree/_utils.pyx":231
 *             largest = right_pos
 * 
 *         if largest != pos:             # <<<<<<<<<<<<<<
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 *             self.heapify_down(heap, largest, heap_length)
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    /* "sklearn/tree/_utils.pyx":232
 * 
 *         if largest != pos:
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 *             self.heapify_down(heap, largest, heap_length)
 * 
 */
    __pyx_t_3 = (__pyx_v_heap[__pyx_v_largest]);
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 *         if largest != pos:
 *             heap[pos], heap[largest] = heap[largest], heap[pos]
 *             self.heapify_down(heap, largest, heap_length)             # <<<<<<<<<<<<<<
 * 
 *     cdef int push(self, SIZE_t node_id, SIZE_t start, SIZE_t end, SIZE_t pos,
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    /* "sklearn/tree/_utils.pyx":231
 *             largest = right_pos
 * 
 *         if largest != pos:             # <<<<<<<<<<<<<<
 *             heap[pos], heap[largest] = heap[largest], heap[pos]
 *             self.heapify_down(heap, largest, heap_length)
 */
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 *             self.heapify_up(heap, parent_pos)
 * 
 *     cdef void heapify_down(self, PriorityHeapRecord* heap, SIZE_t pos,             # <<<<<<<<<<<<<<
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 */

  /* function exit code */
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/* "sklearn/tree/_utils.pyx":235
 *             self.heapify_down(heap, largest, heap_length)
 * 
 *     cdef int push(self, SIZE_t node_id, SIZE_t start, SIZE_t end, SIZE_t pos,             # <<<<<<<<<<<<<<
 *                   SIZE_t depth, bint is_leaf, double improvement,
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 */

static int __pyx_f_7sklearn_4tree_6_utils_12PriorityHeap_push(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_node_id, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_start, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_end, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_pos, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_depth, int __pyx_v_is_leaf, double __pyx_v_improvement, double __pyx_v_impurity, double __pyx_v_impurity_left, double __pyx_v_impurity_right) {
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  /* "sklearn/tree/_utils.pyx":244
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 *         cdef PriorityHeapRecord* heap = NULL
 * 
 */
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  /* "sklearn/tree/_utils.pyx":245
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 *         cdef SIZE_t heap_ptr = self.heap_ptr
 *         cdef PriorityHeapRecord* heap = NULL             # <<<<<<<<<<<<<<
 * 
 *         # Resize if capacity not sufficient
 */
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  /* "sklearn/tree/_utils.pyx":248
 * 
 *         # Resize if capacity not sufficient
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 */
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    /* "sklearn/tree/_utils.pyx":249
 *         # Resize if capacity not sufficient
 *         if heap_ptr >= self.capacity:
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 *             # Since safe_realloc can raise MemoryError, use `except -1`
 *             safe_realloc(&self.heap_, self.capacity)
 */
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    /* "sklearn/tree/_utils.pyx":251
 *             self.capacity *= 2
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 *         # Resize if capacity not sufficient
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 *             # Since safe_realloc can raise MemoryError, use `except -1`
 */
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 * 
 *         # Put element as last element of heap
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  /* "sklearn/tree/_utils.pyx":255
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  /* "sklearn/tree/_utils.pyx":259
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  /* "sklearn/tree/_utils.pyx":260
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 *         heap[heap_ptr].depth = depth
 *         heap[heap_ptr].is_leaf = is_leaf             # <<<<<<<<<<<<<<
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 */
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 *         heap[heap_ptr].impurity = impurity             # <<<<<<<<<<<<<<
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 */
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/* "sklearn/tree/_utils.pyx":273
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 */
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 *         if idx_to_remove == -1:
 */
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 */
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 *         if idx_to_remove == -1:             # <<<<<<<<<<<<<<
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 */
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 *         if idx_to_remove == -1:
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 *         # shift the elements after the removed element
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 *         if idx_to_remove == -1:             # <<<<<<<<<<<<<<
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 */
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 *         self.array_ptr = array_ptr - 1             # <<<<<<<<<<<<<<
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 */
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 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:
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 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
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/* "sklearn/tree/_utils.pyx":403
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 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
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 */

static int __pyx_f_7sklearn_4tree_6_utils_14WeightedPQueue_pop(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_weight) {
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 */
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 */
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/* "sklearn/tree/_utils.pyx":424
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 *         if data < original_median:             # <<<<<<<<<<<<<<
 *             # inserting below the median, so increment k and
 *             # then update self.sum_w_0_k accordingly by adding
 */
  }

  /* "sklearn/tree/_utils.pyx":565
 *             return 0
 * 
 *         if data >= original_median:             # <<<<<<<<<<<<<<
 *             # inserting above or at the median
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 */
  __pyx_t_1 = ((__pyx_v_data >= __pyx_v_original_median) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":568
 *             # inserting above or at the median
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 *             while(self.k < self.samples.size() and             # <<<<<<<<<<<<<<
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1
 */
    while (1) {
      __pyx_t_3 = ((__pyx_v_self->k < ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->size(__pyx_v_self->samples)) != 0);
      if (__pyx_t_3) {
      } else {
        __pyx_t_1 = __pyx_t_3;
        goto __pyx_L12_bool_binop_done;
      }

      /* "sklearn/tree/_utils.pyx":569
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 *             while(self.k < self.samples.size() and
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):             # <<<<<<<<<<<<<<
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 */
      __pyx_t_3 = ((__pyx_v_self->sum_w_0_k < (__pyx_v_self->total_weight / 2.0)) != 0);
      __pyx_t_1 = __pyx_t_3;
      __pyx_L12_bool_binop_done:;
      if (!__pyx_t_1) break;

      /* "sklearn/tree/_utils.pyx":570
 *             while(self.k < self.samples.size() and
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1             # <<<<<<<<<<<<<<
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 *             return 0
 */
      __pyx_v_self->k = (__pyx_v_self->k + 1);

      /* "sklearn/tree/_utils.pyx":571
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)             # <<<<<<<<<<<<<<
 *             return 0
 * 
 */
      __pyx_v_self->sum_w_0_k = (__pyx_v_self->sum_w_0_k + ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->get_weight_from_index(__pyx_v_self->samples, (__pyx_v_self->k - 1)));
    }

    /* "sklearn/tree/_utils.pyx":572
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":565
 *             return 0
 * 
 *         if data >= original_median:             # <<<<<<<<<<<<<<
 *             # inserting above or at the median
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 */
  }

  /* "sklearn/tree/_utils.pyx":532
 *         return return_value
 * 
 *     cdef int update_median_parameters_post_push(             # <<<<<<<<<<<<<<
 *             self, DOUBLE_t data, DOUBLE_t weight,
 *             DOUBLE_t original_median) nogil:
 */

  /* function exit code */
  __pyx_r = 0;
  __pyx_L0:;
  return __pyx_r;
}

/* "sklearn/tree/_utils.pyx":574
 *             return 0
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove a value from the MedianHeap, removing it
 *         from consideration in the median calculation
 */

static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_remove(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight) {
  int __pyx_v_return_value;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_original_median;
  int __pyx_r;
  int __pyx_t_1;

  /* "sklearn/tree/_utils.pyx":581
 *         cdef DOUBLE_t original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  __pyx_t_1 = ((((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->size(__pyx_v_self) != 0) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":582
 * 
 *         if self.size() != 0:
 *             original_median = self.get_median()             # <<<<<<<<<<<<<<
 * 
 *         return_value = self.samples.remove(data, weight)
 */
    __pyx_v_original_median = ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->get_median(__pyx_v_self);

    /* "sklearn/tree/_utils.pyx":581
 *         cdef DOUBLE_t original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":584
 *             original_median = self.get_median()
 * 
 *         return_value = self.samples.remove(data, weight)             # <<<<<<<<<<<<<<
 *         self.update_median_parameters_post_remove(data, weight,
 *                                                   original_median)
 */
  __pyx_v_return_value = ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->remove(__pyx_v_self->samples, __pyx_v_data, __pyx_v_weight);

  /* "sklearn/tree/_utils.pyx":585
 * 
 *         return_value = self.samples.remove(data, weight)
 *         self.update_median_parameters_post_remove(data, weight,             # <<<<<<<<<<<<<<
 *                                                   original_median)
 *         return return_value
 */
  (void)(((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->update_median_parameters_post_remove(__pyx_v_self, __pyx_v_data, __pyx_v_weight, __pyx_v_original_median));

  /* "sklearn/tree/_utils.pyx":587
 *         self.update_median_parameters_post_remove(data, weight,
 *                                                   original_median)
 *         return return_value             # <<<<<<<<<<<<<<
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:
 */
  __pyx_r = __pyx_v_return_value;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":574
 *             return 0
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove a value from the MedianHeap, removing it
 *         from consideration in the median calculation
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "sklearn/tree/_utils.pyx":589
 *         return return_value
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
 *         """Pop a value from the MedianHeap, starting from the
 *         left and moving to the right.
 */

static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_pop(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t *__pyx_v_weight) {
  int __pyx_v_return_value;
  double __pyx_v_original_median;
  int __pyx_r;
  int __pyx_t_1;

  /* "sklearn/tree/_utils.pyx":596
 *         cdef double original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  __pyx_t_1 = ((((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->size(__pyx_v_self) != 0) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":597
 * 
 *         if self.size() != 0:
 *             original_median = self.get_median()             # <<<<<<<<<<<<<<
 * 
 *         # no elements to pop
 */
    __pyx_v_original_median = ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->get_median(__pyx_v_self);

    /* "sklearn/tree/_utils.pyx":596
 *         cdef double original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":600
 * 
 *         # no elements to pop
 *         if self.samples.size() == 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_1 = ((((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->size(__pyx_v_self->samples) == 0) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":601
 *         # no elements to pop
 *         if self.samples.size() == 0:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         return_value = self.samples.pop(data, weight)
 */
    __pyx_r = -1;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":600
 * 
 *         # no elements to pop
 *         if self.samples.size() == 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":603
 *             return -1
 * 
 *         return_value = self.samples.pop(data, weight)             # <<<<<<<<<<<<<<
 *         self.update_median_parameters_post_remove(data[0],
 *                                                   weight[0],
 */
  __pyx_v_return_value = ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->pop(__pyx_v_self->samples, __pyx_v_data, __pyx_v_weight);

  /* "sklearn/tree/_utils.pyx":604
 * 
 *         return_value = self.samples.pop(data, weight)
 *         self.update_median_parameters_post_remove(data[0],             # <<<<<<<<<<<<<<
 *                                                   weight[0],
 *                                                   original_median)
 */
  (void)(((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator *)__pyx_v_self->__pyx_vtab)->update_median_parameters_post_remove(__pyx_v_self, (__pyx_v_data[0]), (__pyx_v_weight[0]), __pyx_v_original_median));

  /* "sklearn/tree/_utils.pyx":607
 *                                                   weight[0],
 *                                                   original_median)
 *         return return_value             # <<<<<<<<<<<<<<
 * 
 *     cdef int update_median_parameters_post_remove(
 */
  __pyx_r = __pyx_v_return_value;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":589
 *         return return_value
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
 *         """Pop a value from the MedianHeap, starting from the
 *         left and moving to the right.
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "sklearn/tree/_utils.pyx":609
 *         return return_value
 * 
 *     cdef int update_median_parameters_post_remove(             # <<<<<<<<<<<<<<
 *             self, DOUBLE_t data, DOUBLE_t weight,
 *             double original_median) nogil:
 */

static int __pyx_f_7sklearn_4tree_6_utils_24WeightedMedianCalculator_update_median_parameters_post_remove(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *__pyx_v_self, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_data, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_v_weight, double __pyx_v_original_median) {
  int __pyx_r;
  int __pyx_t_1;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_t_2;
  int __pyx_t_3;

  /* "sklearn/tree/_utils.pyx":615
 *         namely `k` and `sum_w_0_k` after a removal"""
 *         # reset parameters because it there are no elements
 *         if self.samples.size() == 0:             # <<<<<<<<<<<<<<
 *             self.k = 0
 *             self.total_weight = 0
 */
  __pyx_t_1 = ((((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->size(__pyx_v_self->samples) == 0) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":616
 *         # reset parameters because it there are no elements
 *         if self.samples.size() == 0:
 *             self.k = 0             # <<<<<<<<<<<<<<
 *             self.total_weight = 0
 *             self.sum_w_0_k = 0
 */
    __pyx_v_self->k = 0;

    /* "sklearn/tree/_utils.pyx":617
 *         if self.samples.size() == 0:
 *             self.k = 0
 *             self.total_weight = 0             # <<<<<<<<<<<<<<
 *             self.sum_w_0_k = 0
 *             return 0
 */
    __pyx_v_self->total_weight = 0.0;

    /* "sklearn/tree/_utils.pyx":618
 *             self.k = 0
 *             self.total_weight = 0
 *             self.sum_w_0_k = 0             # <<<<<<<<<<<<<<
 *             return 0
 * 
 */
    __pyx_v_self->sum_w_0_k = 0.0;

    /* "sklearn/tree/_utils.pyx":619
 *             self.total_weight = 0
 *             self.sum_w_0_k = 0
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *         # trivial case of one element.
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":615
 *         namely `k` and `sum_w_0_k` after a removal"""
 *         # reset parameters because it there are no elements
 *         if self.samples.size() == 0:             # <<<<<<<<<<<<<<
 *             self.k = 0
 *             self.total_weight = 0
 */
  }

  /* "sklearn/tree/_utils.pyx":622
 * 
 *         # trivial case of one element.
 *         if self.samples.size() == 1:             # <<<<<<<<<<<<<<
 *             self.k = 1
 *             self.total_weight -= weight
 */
  __pyx_t_1 = ((((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->size(__pyx_v_self->samples) == 1) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":623
 *         # trivial case of one element.
 *         if self.samples.size() == 1:
 *             self.k = 1             # <<<<<<<<<<<<<<
 *             self.total_weight -= weight
 *             self.sum_w_0_k = self.total_weight
 */
    __pyx_v_self->k = 1;

    /* "sklearn/tree/_utils.pyx":624
 *         if self.samples.size() == 1:
 *             self.k = 1
 *             self.total_weight -= weight             # <<<<<<<<<<<<<<
 *             self.sum_w_0_k = self.total_weight
 *             return 0
 */
    __pyx_v_self->total_weight = (__pyx_v_self->total_weight - __pyx_v_weight);

    /* "sklearn/tree/_utils.pyx":625
 *             self.k = 1
 *             self.total_weight -= weight
 *             self.sum_w_0_k = self.total_weight             # <<<<<<<<<<<<<<
 *             return 0
 * 
 */
    __pyx_t_2 = __pyx_v_self->total_weight;
    __pyx_v_self->sum_w_0_k = __pyx_t_2;

    /* "sklearn/tree/_utils.pyx":626
 *             self.total_weight -= weight
 *             self.sum_w_0_k = self.total_weight
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *         # get the current weighted median
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":622
 * 
 *         # trivial case of one element.
 *         if self.samples.size() == 1:             # <<<<<<<<<<<<<<
 *             self.k = 1
 *             self.total_weight -= weight
 */
  }

  /* "sklearn/tree/_utils.pyx":629
 * 
 *         # get the current weighted median
 *         self.total_weight -= weight             # <<<<<<<<<<<<<<
 * 
 *         if data < original_median:
 */
  __pyx_v_self->total_weight = (__pyx_v_self->total_weight - __pyx_v_weight);

  /* "sklearn/tree/_utils.pyx":631
 *         self.total_weight -= weight
 * 
 *         if data < original_median:             # <<<<<<<<<<<<<<
 *             # removing below the median, so decrement k and
 *             # then update self.sum_w_0_k accordingly by subtracting
 */
  __pyx_t_1 = ((__pyx_v_data < __pyx_v_original_median) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":636
 *             # the removed weight
 * 
 *             self.k -= 1             # <<<<<<<<<<<<<<
 *             # update sum_w_0_k by removing the weight at index k
 *             self.sum_w_0_k -= weight
 */
    __pyx_v_self->k = (__pyx_v_self->k - 1);

    /* "sklearn/tree/_utils.pyx":638
 *             self.k -= 1
 *             # update sum_w_0_k by removing the weight at index k
 *             self.sum_w_0_k -= weight             # <<<<<<<<<<<<<<
 * 
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 */
    __pyx_v_self->sum_w_0_k = (__pyx_v_self->sum_w_0_k - __pyx_v_weight);

    /* "sklearn/tree/_utils.pyx":643
 *             # by incrementing k and updating sum_w_0_k accordingly
 *             # until the condition is met.
 *             while(self.k < self.samples.size() and             # <<<<<<<<<<<<<<
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1
 */
    while (1) {
      __pyx_t_3 = ((__pyx_v_self->k < ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->size(__pyx_v_self->samples)) != 0);
      if (__pyx_t_3) {
      } else {
        __pyx_t_1 = __pyx_t_3;
        goto __pyx_L8_bool_binop_done;
      }

      /* "sklearn/tree/_utils.pyx":644
 *             # until the condition is met.
 *             while(self.k < self.samples.size() and
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):             # <<<<<<<<<<<<<<
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 */
      __pyx_t_3 = ((__pyx_v_self->sum_w_0_k < (__pyx_v_self->total_weight / 2.0)) != 0);
      __pyx_t_1 = __pyx_t_3;
      __pyx_L8_bool_binop_done:;
      if (!__pyx_t_1) break;

      /* "sklearn/tree/_utils.pyx":645
 *             while(self.k < self.samples.size() and
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1             # <<<<<<<<<<<<<<
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 *             return 0
 */
      __pyx_v_self->k = (__pyx_v_self->k + 1);

      /* "sklearn/tree/_utils.pyx":646
 *                   (self.sum_w_0_k < self.total_weight / 2.0)):
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)             # <<<<<<<<<<<<<<
 *             return 0
 * 
 */
      __pyx_v_self->sum_w_0_k = (__pyx_v_self->sum_w_0_k + ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->get_weight_from_index(__pyx_v_self->samples, (__pyx_v_self->k - 1)));
    }

    /* "sklearn/tree/_utils.pyx":647
 *                 self.k += 1
 *                 self.sum_w_0_k += self.samples.get_weight_from_index(self.k-1)
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *         if data >= original_median:
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":631
 *         self.total_weight -= weight
 * 
 *         if data < original_median:             # <<<<<<<<<<<<<<
 *             # removing below the median, so decrement k and
 *             # then update self.sum_w_0_k accordingly by subtracting
 */
  }

  /* "sklearn/tree/_utils.pyx":649
 *             return 0
 * 
 *         if data >= original_median:             # <<<<<<<<<<<<<<
 *             # removing above the median
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 */
  __pyx_t_1 = ((__pyx_v_data >= __pyx_v_original_median) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":652
 *             # removing above the median
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 *             while(self.k > 1 and ((self.sum_w_0_k -             # <<<<<<<<<<<<<<
 *                                    self.samples.get_weight_from_index(self.k-1))
 *                                   >= self.total_weight / 2.0)):
 */
    while (1) {
      __pyx_t_3 = ((__pyx_v_self->k > 1) != 0);
      if (__pyx_t_3) {
      } else {
        __pyx_t_1 = __pyx_t_3;
        goto __pyx_L13_bool_binop_done;
      }

      /* "sklearn/tree/_utils.pyx":654
 *             while(self.k > 1 and ((self.sum_w_0_k -
 *                                    self.samples.get_weight_from_index(self.k-1))
 *                                   >= self.total_weight / 2.0)):             # <<<<<<<<<<<<<<
 *                 self.k -= 1
 *                 self.sum_w_0_k -= self.samples.get_weight_from_index(self.k)
 */
      __pyx_t_3 = (((__pyx_v_self->sum_w_0_k - ((struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *)__pyx_v_self->samples->__pyx_vtab)->get_weight_from_index(__pyx_v_self->samples, (__pyx_v_self->k - 1))) >= (__pyx_v_self->total_weight / 2.0)) != 0);
      __pyx_t_1 = __pyx_t_3;
      __pyx_L13_bool_binop_done:;
      if (!__pyx_t_1) break;

      /* "sklearn/tree/_utils.pyx":655
 *                                    self.samples.get_weight_from_index(self.k-1))
 *                                   >= self.total_weight / 2.0)):
 *                 self.k -= 1             # <<<<<<<<<<<<<<
 *                 self.sum_w_0_k -= self.samples.get_weight_from_index(self.k)
 *             return 0
 */
      __pyx_v_self->k = (__pyx_v_self->k - 1);

      /* "sklearn/tree/_utils.pyx":656
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  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_7sklearn_4tree_6_utils_Stack *)o);
  p->__pyx_vtab = __pyx_vtabptr_7sklearn_4tree_6_utils_Stack;
  if (unlikely(__pyx_pw_7sklearn_4tree_6_utils_5Stack_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_7sklearn_4tree_6_utils_Stack(PyObject *o) {
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && (!PyType_IS_GC(Py_TYPE(o)) || !_PyGC_FINALIZED(o))) {
    if (PyObject_CallFinalizerFromDealloc(o)) return;
  }
  #endif
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_7sklearn_4tree_6_utils_5Stack_3__dealloc__(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  (*Py_TYPE(o)->tp_free)(o);
}

static PyMethodDef __pyx_methods_7sklearn_4tree_6_utils_Stack[] = {
  {"__reduce_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_5Stack_5__reduce_cython__, METH_NOARGS, 0},
  {"__setstate_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_5Stack_7__setstate_cython__, METH_O, 0},
  {0, 0, 0, 0}
};

static PyTypeObject __pyx_type_7sklearn_4tree_6_utils_Stack = {
  PyVarObject_HEAD_INIT(0, 0)
  "sklearn.tree._utils.Stack", /*tp_name*/
  sizeof(struct __pyx_obj_7sklearn_4tree_6_utils_Stack), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_7sklearn_4tree_6_utils_Stack, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  "A LIFO data structure.\n\n    Attributes\n    ----------\n    capacity : SIZE_t\n        The elements the stack can hold; if more added then ``self.stack_``\n        needs to be resized.\n\n    top : SIZE_t\n        The number of elements currently on the stack.\n\n    stack : StackRecord pointer\n        The stack of records (upward in the stack corresponds to the right).\n    ", /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_7sklearn_4tree_6_utils_Stack, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_7sklearn_4tree_6_utils_Stack, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  0, /*tp_finalize*/
  #endif
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_PriorityHeap __pyx_vtable_7sklearn_4tree_6_utils_PriorityHeap;

static PyObject *__pyx_tp_new_7sklearn_4tree_6_utils_PriorityHeap(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *p;
  PyObject *o;
  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap *)o);
  p->__pyx_vtab = __pyx_vtabptr_7sklearn_4tree_6_utils_PriorityHeap;
  if (unlikely(__pyx_pw_7sklearn_4tree_6_utils_12PriorityHeap_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_7sklearn_4tree_6_utils_PriorityHeap(PyObject *o) {
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && (!PyType_IS_GC(Py_TYPE(o)) || !_PyGC_FINALIZED(o))) {
    if (PyObject_CallFinalizerFromDealloc(o)) return;
  }
  #endif
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_7sklearn_4tree_6_utils_12PriorityHeap_3__dealloc__(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  (*Py_TYPE(o)->tp_free)(o);
}

static PyMethodDef __pyx_methods_7sklearn_4tree_6_utils_PriorityHeap[] = {
  {"__reduce_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_12PriorityHeap_5__reduce_cython__, METH_NOARGS, 0},
  {"__setstate_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_12PriorityHeap_7__setstate_cython__, METH_O, 0},
  {0, 0, 0, 0}
};

static PyTypeObject __pyx_type_7sklearn_4tree_6_utils_PriorityHeap = {
  PyVarObject_HEAD_INIT(0, 0)
  "sklearn.tree._utils.PriorityHeap", /*tp_name*/
  sizeof(struct __pyx_obj_7sklearn_4tree_6_utils_PriorityHeap), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_7sklearn_4tree_6_utils_PriorityHeap, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  "A priority queue implemented as a binary heap.\n\n    The heap invariant is that the impurity improvement of the parent record\n    is larger then the impurity improvement of the children.\n\n    Attributes\n    ----------\n    capacity : SIZE_t\n        The capacity of the heap\n\n    heap_ptr : SIZE_t\n        The water mark of the heap; the heap grows from left to right in the\n        array ``heap_``. The following invariant holds ``heap_ptr < capacity``.\n\n    heap_ : PriorityHeapRecord*\n        The array of heap records. The maximum element is on the left;\n        the heap grows from left to right\n    ", /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_7sklearn_4tree_6_utils_PriorityHeap, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_7sklearn_4tree_6_utils_PriorityHeap, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  0, /*tp_finalize*/
  #endif
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue __pyx_vtable_7sklearn_4tree_6_utils_WeightedPQueue;

static PyObject *__pyx_tp_new_7sklearn_4tree_6_utils_WeightedPQueue(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *p;
  PyObject *o;
  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *)o);
  p->__pyx_vtab = __pyx_vtabptr_7sklearn_4tree_6_utils_WeightedPQueue;
  if (unlikely(__pyx_pw_7sklearn_4tree_6_utils_14WeightedPQueue_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_7sklearn_4tree_6_utils_WeightedPQueue(PyObject *o) {
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && (!PyType_IS_GC(Py_TYPE(o)) || !_PyGC_FINALIZED(o))) {
    if (PyObject_CallFinalizerFromDealloc(o)) return;
  }
  #endif
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    ++Py_REFCNT(o);
    __pyx_pw_7sklearn_4tree_6_utils_14WeightedPQueue_3__dealloc__(o);
    --Py_REFCNT(o);
    PyErr_Restore(etype, eval, etb);
  }
  (*Py_TYPE(o)->tp_free)(o);
}

static PyMethodDef __pyx_methods_7sklearn_4tree_6_utils_WeightedPQueue[] = {
  {"__reduce_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_14WeightedPQueue_5__reduce_cython__, METH_NOARGS, 0},
  {"__setstate_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_14WeightedPQueue_7__setstate_cython__, METH_O, 0},
  {0, 0, 0, 0}
};

static PyTypeObject __pyx_type_7sklearn_4tree_6_utils_WeightedPQueue = {
  PyVarObject_HEAD_INIT(0, 0)
  "sklearn.tree._utils.WeightedPQueue", /*tp_name*/
  sizeof(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_7sklearn_4tree_6_utils_WeightedPQueue, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  "A priority queue class, always sorted in increasing order.\n\n    Attributes\n    ----------\n    capacity : SIZE_t\n        The capacity of the priority queue.\n\n    array_ptr : SIZE_t\n        The water mark of the priority queue; the priority queue grows from\n        left to right in the array ``array_``. ``array_ptr`` is always\n        less than ``capacity``.\n\n    array_ : WeightedPQueueRecord*\n        The array of priority queue records. The minimum element is on the\n        left at index 0, and the maximum element is on the right at index\n        ``array_ptr-1``.\n    ", /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_7sklearn_4tree_6_utils_WeightedPQueue, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_7sklearn_4tree_6_utils_WeightedPQueue, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  0, /*tp_finalize*/
  #endif
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator __pyx_vtable_7sklearn_4tree_6_utils_WeightedMedianCalculator;

static PyObject *__pyx_tp_new_7sklearn_4tree_6_utils_WeightedMedianCalculator(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *p;
  PyObject *o;
  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *)o);
  p->__pyx_vtab = __pyx_vtabptr_7sklearn_4tree_6_utils_WeightedMedianCalculator;
  p->samples = ((struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *)Py_None); Py_INCREF(Py_None);
  if (unlikely(__pyx_pw_7sklearn_4tree_6_utils_24WeightedMedianCalculator_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_7sklearn_4tree_6_utils_WeightedMedianCalculator(PyObject *o) {
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *p = (struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *)o;
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) {
    if (PyObject_CallFinalizerFromDealloc(o)) return;
  }
  #endif
  PyObject_GC_UnTrack(o);
  Py_CLEAR(p->samples);
  (*Py_TYPE(o)->tp_free)(o);
}

static int __pyx_tp_traverse_7sklearn_4tree_6_utils_WeightedMedianCalculator(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *p = (struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *)o;
  if (p->samples) {
    e = (*v)(((PyObject *)p->samples), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_7sklearn_4tree_6_utils_WeightedMedianCalculator(PyObject *o) {
  PyObject* tmp;
  struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *p = (struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *)o;
  tmp = ((PyObject*)p->samples);
  p->samples = ((struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyMethodDef __pyx_methods_7sklearn_4tree_6_utils_WeightedMedianCalculator[] = {
  {"__reduce_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_24WeightedMedianCalculator_3__reduce_cython__, METH_NOARGS, 0},
  {"__setstate_cython__", (PyCFunction)__pyx_pw_7sklearn_4tree_6_utils_24WeightedMedianCalculator_5__setstate_cython__, METH_O, 0},
  {0, 0, 0, 0}
};

static PyTypeObject __pyx_type_7sklearn_4tree_6_utils_WeightedMedianCalculator = {
  PyVarObject_HEAD_INIT(0, 0)
  "sklearn.tree._utils.WeightedMedianCalculator", /*tp_name*/
  sizeof(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_7sklearn_4tree_6_utils_WeightedMedianCalculator, /*tp_dealloc*/
  0, /*tp_print*/
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  "A class to handle calculation of the weighted median from streams of\n    data. To do so, it maintains a parameter ``k`` such that the sum of the\n    weights in the range [0,k) is greater than or equal to half of the total\n    weight. By minimizing the value of ``k`` that fulfills this constraint,\n    calculating the median is done by either taking the value of the sample\n    at index ``k-1`` of ``samples`` (samples[k-1].data) or the average of\n    the samples at index ``k-1`` and ``k`` of ``samples``\n    ((samples[k-1] + samples[k]) / 2).\n\n    Attributes\n    ----------\n    initial_capacity : SIZE_t\n        The initial capacity of the WeightedMedianCalculator.\n\n    samples : WeightedPQueue\n        Holds the samples (consisting of values and their weights) used in the\n        weighted median calculation.\n\n    total_weight : DOUBLE_t\n        The sum of the weights of items in ``samples``. Represents the total\n        weight of all samples used in the median calculation.\n\n    k : SIZE_t\n        Index used to calculate the median.\n\n    sum_w_0_k : DOUBLE_t\n        The sum of the weights from samples[0:k]. Used in the weighted\n        median calculation; minimizing the value of ``k`` such that\n        ``sum_w_0_k`` >= ``total_weight / 2`` provides a mechanism for\n        calculating the median in constant time.\n\n    ", /*tp_doc*/
  __pyx_tp_traverse_7sklearn_4tree_6_utils_WeightedMedianCalculator, /*tp_traverse*/
  __pyx_tp_clear_7sklearn_4tree_6_utils_WeightedMedianCalculator, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_7sklearn_4tree_6_utils_WeightedMedianCalculator, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  0, /*tp_dictoffset*/
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_7sklearn_4tree_6_utils_WeightedMedianCalculator, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  0, /*tp_finalize*/
  #endif
};

static PyMethodDef __pyx_methods[] = {
  {0, 0, 0, 0}
};

#if PY_MAJOR_VERSION >= 3
#if CYTHON_PEP489_MULTI_PHASE_INIT
static PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def); /*proto*/
static int __pyx_pymod_exec__utils(PyObject* module); /*proto*/
static PyModuleDef_Slot __pyx_moduledef_slots[] = {
  {Py_mod_create, (void*)__pyx_pymod_create},
  {Py_mod_exec, (void*)__pyx_pymod_exec__utils},
  {0, NULL}
};
#endif

static struct PyModuleDef __pyx_moduledef = {
    PyModuleDef_HEAD_INIT,
    "_utils",
    0, /* m_doc */
  #if CYTHON_PEP489_MULTI_PHASE_INIT
    0, /* m_size */
  #else
    -1, /* m_size */
  #endif
    __pyx_methods /* m_methods */,
  #if CYTHON_PEP489_MULTI_PHASE_INIT
    __pyx_moduledef_slots, /* m_slots */
  #else
    NULL, /* m_reload */
  #endif
    NULL, /* m_traverse */
    NULL, /* m_clear */
    NULL /* m_free */
};
#endif

static __Pyx_StringTabEntry __pyx_string_tab[] = {
  {&__pyx_kp_u_Format_string_allocated_too_shor, __pyx_k_Format_string_allocated_too_shor, sizeof(__pyx_k_Format_string_allocated_too_shor), 0, 1, 0, 0},
  {&__pyx_kp_u_Format_string_allocated_too_shor_2, __pyx_k_Format_string_allocated_too_shor_2, sizeof(__pyx_k_Format_string_allocated_too_shor_2), 0, 1, 0, 0},
  {&__pyx_n_s_ImportError, __pyx_k_ImportError, sizeof(__pyx_k_ImportError), 0, 0, 1, 1},
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/* PyErrFetchRestore */
#if CYTHON_FAST_THREAD_STATE
static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    tmp_type = tstate->curexc_type;
    tmp_value = tstate->curexc_value;
    tmp_tb = tstate->curexc_traceback;
    tstate->curexc_type = type;
    tstate->curexc_value = value;
    tstate->curexc_traceback = tb;
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
}
static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
    *type = tstate->curexc_type;
    *value = tstate->curexc_value;
    *tb = tstate->curexc_traceback;
    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
}
#endif

/* RaiseException */
#if PY_MAJOR_VERSION < 3
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
                        CYTHON_UNUSED PyObject *cause) {
    __Pyx_PyThreadState_declare
    Py_XINCREF(type);
    if (!value || value == Py_None)
        value = NULL;
    else
        Py_INCREF(value);
    if (!tb || tb == Py_None)
        tb = NULL;
    else {
        Py_INCREF(tb);
        if (!PyTraceBack_Check(tb)) {
            PyErr_SetString(PyExc_TypeError,
                "raise: arg 3 must be a traceback or None");
            goto raise_error;
        }
    }
    if (PyType_Check(type)) {
#if CYTHON_COMPILING_IN_PYPY
        if (!value) {
            Py_INCREF(Py_None);
            value = Py_None;
        }
#endif
        PyErr_NormalizeException(&type, &value, &tb);
    } else {
        if (value) {
            PyErr_SetString(PyExc_TypeError,
                "instance exception may not have a separate value");
            goto raise_error;
        }
        value = type;
        type = (PyObject*) Py_TYPE(type);
        Py_INCREF(type);
        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
            PyErr_SetString(PyExc_TypeError,
                "raise: exception class must be a subclass of BaseException");
            goto raise_error;
        }
    }
    __Pyx_PyThreadState_assign
    __Pyx_ErrRestore(type, value, tb);
    return;
raise_error:
    Py_XDECREF(value);
    Py_XDECREF(type);
    Py_XDECREF(tb);
    return;
}
#else
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
    PyObject* owned_instance = NULL;
    if (tb == Py_None) {
        tb = 0;
    } else if (tb && !PyTraceBack_Check(tb)) {
        PyErr_SetString(PyExc_TypeError,
            "raise: arg 3 must be a traceback or None");
        goto bad;
    }
    if (value == Py_None)
        value = 0;
    if (PyExceptionInstance_Check(type)) {
        if (value) {
            PyErr_SetString(PyExc_TypeError,
                "instance exception may not have a separate value");
            goto bad;
        }
        value = type;
        type = (PyObject*) Py_TYPE(value);
    } else if (PyExceptionClass_Check(type)) {
        PyObject *instance_class = NULL;
        if (value && PyExceptionInstance_Check(value)) {
            instance_class = (PyObject*) Py_TYPE(value);
            if (instance_class != type) {
                int is_subclass = PyObject_IsSubclass(instance_class, type);
                if (!is_subclass) {
                    instance_class = NULL;
                } else if (unlikely(is_subclass == -1)) {
                    goto bad;
                } else {
                    type = instance_class;
                }
            }
        }
        if (!instance_class) {
            PyObject *args;
            if (!value)
                args = PyTuple_New(0);
            else if (PyTuple_Check(value)) {
                Py_INCREF(value);
                args = value;
            } else
                args = PyTuple_Pack(1, value);
            if (!args)
                goto bad;
            owned_instance = PyObject_Call(type, args, NULL);
            Py_DECREF(args);
            if (!owned_instance)
                goto bad;
            value = owned_instance;
            if (!PyExceptionInstance_Check(value)) {
                PyErr_Format(PyExc_TypeError,
                             "calling %R should have returned an instance of "
                             "BaseException, not %R",
                             type, Py_TYPE(value));
                goto bad;
            }
        }
    } else {
        PyErr_SetString(PyExc_TypeError,
            "raise: exception class must be a subclass of BaseException");
        goto bad;
    }
    if (cause) {
        PyObject *fixed_cause;
        if (cause == Py_None) {
            fixed_cause = NULL;
        } else if (PyExceptionClass_Check(cause)) {
            fixed_cause = PyObject_CallObject(cause, NULL);
            if (fixed_cause == NULL)
                goto bad;
        } else if (PyExceptionInstance_Check(cause)) {
            fixed_cause = cause;
            Py_INCREF(fixed_cause);
        } else {
            PyErr_SetString(PyExc_TypeError,
                            "exception causes must derive from "
                            "BaseException");
            goto bad;
        }
        PyException_SetCause(value, fixed_cause);
    }
    PyErr_SetObject(type, value);
    if (tb) {
#if CYTHON_COMPILING_IN_PYPY
        PyObject *tmp_type, *tmp_value, *tmp_tb;
        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
        Py_INCREF(tb);
        PyErr_Restore(tmp_type, tmp_value, tb);
        Py_XDECREF(tmp_tb);
#else
        PyThreadState *tstate = __Pyx_PyThreadState_Current;
        PyObject* tmp_tb = tstate->curexc_traceback;
        if (tb != tmp_tb) {
            Py_INCREF(tb);
            tstate->curexc_traceback = tb;
            Py_XDECREF(tmp_tb);
        }
#endif
    }
bad:
    Py_XDECREF(owned_instance);
    return;
}
#endif

/* PyObjectCallNoArg */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
#if CYTHON_FAST_PYCALL
    if (PyFunction_Check(func)) {
        return __Pyx_PyFunction_FastCall(func, NULL, 0);
    }
#endif
#ifdef __Pyx_CyFunction_USED
    if (likely(PyCFunction_Check(func) || __Pyx_TypeCheck(func, __pyx_CyFunctionType))) {
#else
    if (likely(PyCFunction_Check(func))) {
#endif
        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
            return __Pyx_PyObject_CallMethO(func, NULL);
        }
    }
    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
}
#endif

/* ExtTypeTest */
  static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
    if (unlikely(!type)) {
        PyErr_SetString(PyExc_SystemError, "Missing type object");
        return 0;
    }
    if (likely(__Pyx_TypeCheck(obj, type)))
        return 1;
    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
                 Py_TYPE(obj)->tp_name, type->tp_name);
    return 0;
}

/* RaiseDoubleKeywords */
  static void __Pyx_RaiseDoubleKeywordsError(
    const char* func_name,
    PyObject* kw_name)
{
    PyErr_Format(PyExc_TypeError,
        #if PY_MAJOR_VERSION >= 3
        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
        #else
        "%s() got multiple values for keyword argument '%s'", func_name,
        PyString_AsString(kw_name));
        #endif
}

/* ParseKeywords */
  static int __Pyx_ParseOptionalKeywords(
    PyObject *kwds,
    PyObject **argnames[],
    PyObject *kwds2,
    PyObject *values[],
    Py_ssize_t num_pos_args,
    const char* function_name)
{
    PyObject *key = 0, *value = 0;
    Py_ssize_t pos = 0;
    PyObject*** name;
    PyObject*** first_kw_arg = argnames + num_pos_args;
    while (PyDict_Next(kwds, &pos, &key, &value)) {
        name = first_kw_arg;
        while (*name && (**name != key)) name++;
        if (*name) {
            values[name-argnames] = value;
            continue;
        }
        name = first_kw_arg;
        #if PY_MAJOR_VERSION < 3
        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
            while (*name) {
                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                        && _PyString_Eq(**name, key)) {
                    values[name-argnames] = value;
                    break;
                }
                name++;
            }
            if (*name) continue;
            else {
                PyObject*** argname = argnames;
                while (argname != first_kw_arg) {
                    if ((**argname == key) || (
                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
                             && _PyString_Eq(**argname, key))) {
                        goto arg_passed_twice;
                    }
                    argname++;
                }
            }
        } else
        #endif
        if (likely(PyUnicode_Check(key))) {
            while (*name) {
                int cmp = (**name == key) ? 0 :
                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                #endif
                    PyUnicode_Compare(**name, key);
                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
                if (cmp == 0) {
                    values[name-argnames] = value;
                    break;
                }
                name++;
            }
            if (*name) continue;
            else {
                PyObject*** argname = argnames;
                while (argname != first_kw_arg) {
                    int cmp = (**argname == key) ? 0 :
                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                    #endif
                        PyUnicode_Compare(**argname, key);
                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
                    if (cmp == 0) goto arg_passed_twice;
                    argname++;
                }
            }
        } else
            goto invalid_keyword_type;
        if (kwds2) {
            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
        } else {
            goto invalid_keyword;
        }
    }
    return 0;
arg_passed_twice:
    __Pyx_RaiseDoubleKeywordsError(function_name, key);
    goto bad;
invalid_keyword_type:
    PyErr_Format(PyExc_TypeError,
        "%.200s() keywords must be strings", function_name);
    goto bad;
invalid_keyword:
    PyErr_Format(PyExc_TypeError,
    #if PY_MAJOR_VERSION < 3
        "%.200s() got an unexpected keyword argument '%.200s'",
        function_name, PyString_AsString(key));
    #else
        "%s() got an unexpected keyword argument '%U'",
        function_name, key);
    #endif
bad:
    return -1;
}

/* RaiseArgTupleInvalid */
  static void __Pyx_RaiseArgtupleInvalid(
    const char* func_name,
    int exact,
    Py_ssize_t num_min,
    Py_ssize_t num_max,
    Py_ssize_t num_found)
{
    Py_ssize_t num_expected;
    const char *more_or_less;
    if (num_found < num_min) {
        num_expected = num_min;
        more_or_less = "at least";
    } else {
        num_expected = num_max;
        more_or_less = "at most";
    }
    if (exact) {
        more_or_less = "exactly";
    }
    PyErr_Format(PyExc_TypeError,
                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
                 func_name, more_or_less, num_expected,
                 (num_expected == 1) ? "" : "s", num_found);
}

/* DictGetItem */
  #if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
    PyObject *value;
    value = PyDict_GetItemWithError(d, key);
    if (unlikely(!value)) {
        if (!PyErr_Occurred()) {
            PyObject* args = PyTuple_Pack(1, key);
            if (likely(args))
                PyErr_SetObject(PyExc_KeyError, args);
            Py_XDECREF(args);
        }
        return NULL;
    }
    Py_INCREF(value);
    return value;
}
#endif

/* RaiseTooManyValuesToUnpack */
  static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
    PyErr_Format(PyExc_ValueError,
                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
}

/* RaiseNeedMoreValuesToUnpack */
  static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
    PyErr_Format(PyExc_ValueError,
                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
                 index, (index == 1) ? "" : "s");
}

/* RaiseNoneIterError */
  static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
}

/* SaveResetException */
  #if CYTHON_FAST_THREAD_STATE
static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
    #if PY_VERSION_HEX >= 0x030700A3
    *type = tstate->exc_state.exc_type;
    *value = tstate->exc_state.exc_value;
    *tb = tstate->exc_state.exc_traceback;
    #else
    *type = tstate->exc_type;
    *value = tstate->exc_value;
    *tb = tstate->exc_traceback;
    #endif
    Py_XINCREF(*type);
    Py_XINCREF(*value);
    Py_XINCREF(*tb);
}
static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    #if PY_VERSION_HEX >= 0x030700A3
    tmp_type = tstate->exc_state.exc_type;
    tmp_value = tstate->exc_state.exc_value;
    tmp_tb = tstate->exc_state.exc_traceback;
    tstate->exc_state.exc_type = type;
    tstate->exc_state.exc_value = value;
    tstate->exc_state.exc_traceback = tb;
    #else
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = type;
    tstate->exc_value = value;
    tstate->exc_traceback = tb;
    #endif
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
}
#endif

/* PyErrExceptionMatches */
  #if CYTHON_FAST_THREAD_STATE
static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
    Py_ssize_t i, n;
    n = PyTuple_GET_SIZE(tuple);
#if PY_MAJOR_VERSION >= 3
    for (i=0; i<n; i++) {
        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
    }
#endif
    for (i=0; i<n; i++) {
        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
    }
    return 0;
}
static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
    PyObject *exc_type = tstate->curexc_type;
    if (exc_type == err) return 1;
    if (unlikely(!exc_type)) return 0;
    if (unlikely(PyTuple_Check(err)))
        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
}
#endif

/* GetException */
  #if CYTHON_FAST_THREAD_STATE
static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
#else
static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
#endif
    PyObject *local_type, *local_value, *local_tb;
#if CYTHON_FAST_THREAD_STATE
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    local_type = tstate->curexc_type;
    local_value = tstate->curexc_value;
    local_tb = tstate->curexc_traceback;
    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
#else
    PyErr_Fetch(&local_type, &local_value, &local_tb);
#endif
    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
#if CYTHON_FAST_THREAD_STATE
    if (unlikely(tstate->curexc_type))
#else
    if (unlikely(PyErr_Occurred()))
#endif
        goto bad;
    #if PY_MAJOR_VERSION >= 3
    if (local_tb) {
        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
            goto bad;
    }
    #endif
    Py_XINCREF(local_tb);
    Py_XINCREF(local_type);
    Py_XINCREF(local_value);
    *type = local_type;
    *value = local_value;
    *tb = local_tb;
#if CYTHON_FAST_THREAD_STATE
    #if PY_VERSION_HEX >= 0x030700A3
    tmp_type = tstate->exc_state.exc_type;
    tmp_value = tstate->exc_state.exc_value;
    tmp_tb = tstate->exc_state.exc_traceback;
    tstate->exc_state.exc_type = local_type;
    tstate->exc_state.exc_value = local_value;
    tstate->exc_state.exc_traceback = local_tb;
    #else
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = local_type;
    tstate->exc_value = local_value;
    tstate->exc_traceback = local_tb;
    #endif
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
#else
    PyErr_SetExcInfo(local_type, local_value, local_tb);
#endif
    return 0;
bad:
    *type = 0;
    *value = 0;
    *tb = 0;
    Py_XDECREF(local_type);
    Py_XDECREF(local_value);
    Py_XDECREF(local_tb);
    return -1;
}

/* PyObject_GenericGetAttrNoDict */
    #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
    PyErr_Format(PyExc_AttributeError,
#if PY_MAJOR_VERSION >= 3
                 "'%.50s' object has no attribute '%U'",
                 tp->tp_name, attr_name);
#else
                 "'%.50s' object has no attribute '%.400s'",
                 tp->tp_name, PyString_AS_STRING(attr_name));
#endif
    return NULL;
}
static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
    PyObject *descr;
    PyTypeObject *tp = Py_TYPE(obj);
    if (unlikely(!PyString_Check(attr_name))) {
        return PyObject_GenericGetAttr(obj, attr_name);
    }
    assert(!tp->tp_dictoffset);
    descr = _PyType_Lookup(tp, attr_name);
    if (unlikely(!descr)) {
        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
    }
    Py_INCREF(descr);
    #if PY_MAJOR_VERSION < 3
    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
    #endif
    {
        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
        if (unlikely(f)) {
            PyObject *res = f(descr, obj, (PyObject *)tp);
            Py_DECREF(descr);
            return res;
        }
    }
    return descr;
}
#endif

/* PyObject_GenericGetAttr */
    #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) {
    if (unlikely(Py_TYPE(obj)->tp_dictoffset)) {
        return PyObject_GenericGetAttr(obj, attr_name);
    }
    return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name);
}
#endif

/* SetVTable */
    static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
#if PY_VERSION_HEX >= 0x02070000
    PyObject *ob = PyCapsule_New(vtable, 0, 0);
#else
    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
#endif
    if (!ob)
        goto bad;
    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
        goto bad;
    Py_DECREF(ob);
    return 0;
bad:
    Py_XDECREF(ob);
    return -1;
}

/* SetupReduce */
    static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
  int ret;
  PyObject *name_attr;
  name_attr = __Pyx_PyObject_GetAttrStr(meth, __pyx_n_s_name);
  if (likely(name_attr)) {
      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
  } else {
      ret = -1;
  }
  if (unlikely(ret < 0)) {
      PyErr_Clear();
      ret = 0;
  }
  Py_XDECREF(name_attr);
  return ret;
}
static int __Pyx_setup_reduce(PyObject* type_obj) {
    int ret = 0;
    PyObject *object_reduce = NULL;
    PyObject *object_reduce_ex = NULL;
    PyObject *reduce = NULL;
    PyObject *reduce_ex = NULL;
    PyObject *reduce_cython = NULL;
    PyObject *setstate = NULL;
    PyObject *setstate_cython = NULL;
#if CYTHON_USE_PYTYPE_LOOKUP
    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD;
#else
    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD;
#endif
#if CYTHON_USE_PYTYPE_LOOKUP
    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
#else
    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
#endif
    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD;
    if (reduce_ex == object_reduce_ex) {
#if CYTHON_USE_PYTYPE_LOOKUP
        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
#else
        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
#endif
        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD;
        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
            reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD;
            ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD;
            ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD;
            setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
            if (!setstate) PyErr_Clear();
            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
                setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD;
                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD;
                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD;
            }
            PyType_Modified((PyTypeObject*)type_obj);
        }
    }
    goto GOOD;
BAD:
    if (!PyErr_Occurred())
        PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
    ret = -1;
GOOD:
#if !CYTHON_USE_PYTYPE_LOOKUP
    Py_XDECREF(object_reduce);
    Py_XDECREF(object_reduce_ex);
#endif
    Py_XDECREF(reduce);
    Py_XDECREF(reduce_ex);
    Py_XDECREF(reduce_cython);
    Py_XDECREF(setstate);
    Py_XDECREF(setstate_cython);
    return ret;
}

/* GetVTable */
    static void* __Pyx_GetVtable(PyObject *dict) {
    void* ptr;
    PyObject *ob = PyObject_GetItem(dict, __pyx_n_s_pyx_vtable);
    if (!ob)
        goto bad;
#if PY_VERSION_HEX >= 0x02070000
    ptr = PyCapsule_GetPointer(ob, 0);
#else
    ptr = PyCObject_AsVoidPtr(ob);
#endif
    if (!ptr && !PyErr_Occurred())
        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
    Py_DECREF(ob);
    return ptr;
bad:
    Py_XDECREF(ob);
    return NULL;
}

/* Import */
    static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
    PyObject *empty_list = 0;
    PyObject *module = 0;
    PyObject *global_dict = 0;
    PyObject *empty_dict = 0;
    PyObject *list;
    #if PY_MAJOR_VERSION < 3
    PyObject *py_import;
    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
    if (!py_import)
        goto bad;
    #endif
    if (from_list)
        list = from_list;
    else {
        empty_list = PyList_New(0);
        if (!empty_list)
            goto bad;
        list = empty_list;
    }
    global_dict = PyModule_GetDict(__pyx_m);
    if (!global_dict)
        goto bad;
    empty_dict = PyDict_New();
    if (!empty_dict)
        goto bad;
    {
        #if PY_MAJOR_VERSION >= 3
        if (level == -1) {
            if (strchr(__Pyx_MODULE_NAME, '.')) {
                module = PyImport_ImportModuleLevelObject(
                    name, global_dict, empty_dict, list, 1);
                if (!module) {
                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
                        goto bad;
                    PyErr_Clear();
                }
            }
            level = 0;
        }
        #endif
        if (!module) {
            #if PY_MAJOR_VERSION < 3
            PyObject *py_level = PyInt_FromLong(level);
            if (!py_level)
                goto bad;
            module = PyObject_CallFunctionObjArgs(py_import,
                name, global_dict, empty_dict, list, py_level, NULL);
            Py_DECREF(py_level);
            #else
            module = PyImport_ImportModuleLevelObject(
                name, global_dict, empty_dict, list, level);
            #endif
        }
    }
bad:
    #if PY_MAJOR_VERSION < 3
    Py_XDECREF(py_import);
    #endif
    Py_XDECREF(empty_list);
    Py_XDECREF(empty_dict);
    return module;
}

/* CLineInTraceback */
    #ifndef CYTHON_CLINE_IN_TRACEBACK
static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) {
    PyObject *use_cline;
    PyObject *ptype, *pvalue, *ptraceback;
#if CYTHON_COMPILING_IN_CPYTHON
    PyObject **cython_runtime_dict;
#endif
    if (unlikely(!__pyx_cython_runtime)) {
        return c_line;
    }
    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
#if CYTHON_COMPILING_IN_CPYTHON
    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
    if (likely(cython_runtime_dict)) {
      use_cline = __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback);
    } else
#endif
    {
      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
      if (use_cline_obj) {
        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
        Py_DECREF(use_cline_obj);
      } else {
        PyErr_Clear();
        use_cline = NULL;
      }
    }
    if (!use_cline) {
        c_line = 0;
        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
    }
    else if (PyObject_Not(use_cline) != 0) {
        c_line = 0;
    }
    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
    return c_line;
}
#endif

/* CodeObjectCache */
    static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
    int start = 0, mid = 0, end = count - 1;
    if (end >= 0 && code_line > entries[end].code_line) {
        return count;
    }
    while (start < end) {
        mid = start + (end - start) / 2;
        if (code_line < entries[mid].code_line) {
            end = mid;
        } else if (code_line > entries[mid].code_line) {
             start = mid + 1;
        } else {
            return mid;
        }
    }
    if (code_line <= entries[mid].code_line) {
        return mid;
    } else {
        return mid + 1;
    }
}
static PyCodeObject *__pyx_find_code_object(int code_line) {
    PyCodeObject* code_object;
    int pos;
    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
        return NULL;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
        return NULL;
    }
    code_object = __pyx_code_cache.entries[pos].code_object;
    Py_INCREF(code_object);
    return code_object;
}
static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
    int pos, i;
    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
    if (unlikely(!code_line)) {
        return;
    }
    if (unlikely(!entries)) {
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
        if (likely(entries)) {
            __pyx_code_cache.entries = entries;
            __pyx_code_cache.max_count = 64;
            __pyx_code_cache.count = 1;
            entries[0].code_line = code_line;
            entries[0].code_object = code_object;
            Py_INCREF(code_object);
        }
        return;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
        PyCodeObject* tmp = entries[pos].code_object;
        entries[pos].code_object = code_object;
        Py_DECREF(tmp);
        return;
    }
    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
        int new_max = __pyx_code_cache.max_count + 64;
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
        if (unlikely(!entries)) {
            return;
        }
        __pyx_code_cache.entries = entries;
        __pyx_code_cache.max_count = new_max;
    }
    for (i=__pyx_code_cache.count; i>pos; i--) {
        entries[i] = entries[i-1];
    }
    entries[pos].code_line = code_line;
    entries[pos].code_object = code_object;
    __pyx_code_cache.count++;
    Py_INCREF(code_object);
}

/* AddTraceback */
    #include "compile.h"
#include "frameobject.h"
#include "traceback.h"
static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
            const char *funcname, int c_line,
            int py_line, const char *filename) {
    PyCodeObject *py_code = 0;
    PyObject *py_srcfile = 0;
    PyObject *py_funcname = 0;
    #if PY_MAJOR_VERSION < 3
    py_srcfile = PyString_FromString(filename);
    #else
    py_srcfile = PyUnicode_FromString(filename);
    #endif
    if (!py_srcfile) goto bad;
    if (c_line) {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        #else
        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        #endif
    }
    else {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromString(funcname);
        #else
        py_funcname = PyUnicode_FromString(funcname);
        #endif
    }
    if (!py_funcname) goto bad;
    py_code = __Pyx_PyCode_New(
        0,
        0,
        0,
        0,
        0,
        __pyx_empty_bytes, /*PyObject *code,*/
        __pyx_empty_tuple, /*PyObject *consts,*/
        __pyx_empty_tuple, /*PyObject *names,*/
        __pyx_empty_tuple, /*PyObject *varnames,*/
        __pyx_empty_tuple, /*PyObject *freevars,*/
        __pyx_empty_tuple, /*PyObject *cellvars,*/
        py_srcfile,   /*PyObject *filename,*/
        py_funcname,  /*PyObject *name,*/
        py_line,
        __pyx_empty_bytes  /*PyObject *lnotab*/
    );
    Py_DECREF(py_srcfile);
    Py_DECREF(py_funcname);
    return py_code;
bad:
    Py_XDECREF(py_srcfile);
    Py_XDECREF(py_funcname);
    return NULL;
}
static void __Pyx_AddTraceback(const char *funcname, int c_line,
                               int py_line, const char *filename) {
    PyCodeObject *py_code = 0;
    PyFrameObject *py_frame = 0;
    PyThreadState *tstate = __Pyx_PyThreadState_Current;
    if (c_line) {
        c_line = __Pyx_CLineForTraceback(tstate, c_line);
    }
    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
    if (!py_code) {
        py_code = __Pyx_CreateCodeObjectForTraceback(
            funcname, c_line, py_line, filename);
        if (!py_code) goto bad;
        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
    }
    py_frame = PyFrame_New(
        tstate,            /*PyThreadState *tstate,*/
        py_code,           /*PyCodeObject *code,*/
        __pyx_d,    /*PyObject *globals,*/
        0                  /*PyObject *locals*/
    );
    if (!py_frame) goto bad;
    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
    PyTraceBack_Here(py_frame);
bad:
    Py_XDECREF(py_code);
    Py_XDECREF(py_frame);
}

/* CIntFromPyVerify */
    #define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
    {\
        func_type value = func_value;\
        if (sizeof(target_type) < sizeof(func_type)) {\
            if (unlikely(value != (func_type) (target_type) value)) {\
                func_type zero = 0;\
                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
                    return (target_type) -1;\
                if (is_unsigned && unlikely(value < zero))\
                    goto raise_neg_overflow;\
                else\
                    goto raise_overflow;\
            }\
        }\
        return (target_type) value;\
    }

/* None */
    static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void) {
  int err;
  #ifdef WITH_THREAD
  PyGILState_STATE _save = PyGILState_Ensure();
  #endif
  err = !!PyErr_Occurred();
  #ifdef WITH_THREAD
  PyGILState_Release(_save);
  #endif
  return err;
}

/* CIntToPy */
    static CYTHON_INLINE PyObject* __Pyx_PyInt_From_Py_intptr_t(Py_intptr_t value) {
    const Py_intptr_t neg_one = (Py_intptr_t) -1, const_zero = (Py_intptr_t) 0;
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(Py_intptr_t) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(Py_intptr_t) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(Py_intptr_t) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(Py_intptr_t) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(Py_intptr_t) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
        return _PyLong_FromByteArray(bytes, sizeof(Py_intptr_t),
                                     little, !is_unsigned);
    }
}

/* CIntToPy */
    static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
    const long neg_one = (long) -1, const_zero = (long) 0;
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(long) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(long) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(long) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
        return _PyLong_FromByteArray(bytes, sizeof(long),
                                     little, !is_unsigned);
    }
}

/* Declarations */
    #if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return ::std::complex< float >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return x + y*(__pyx_t_float_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      __pyx_t_float_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

/* Arithmetic */
    #if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eq_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_sum_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_diff_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_prod_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    #if 1
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quot_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        if (b.imag == 0) {
            return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else if (fabsf(b.real) >= fabsf(b.imag)) {
            if (b.real == 0 && b.imag == 0) {
                return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
            } else {
                float r = b.imag / b.real;
                float s = 1.0 / (b.real + b.imag * r);
                return __pyx_t_float_complex_from_parts(
                    (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
            }
        } else {
            float r = b.real / b.imag;
            float s = 1.0 / (b.imag + b.real * r);
            return __pyx_t_float_complex_from_parts(
                (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
        }
    }
    #else
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quot_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        if (b.imag == 0) {
            return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else {
            float denom = b.real * b.real + b.imag * b.imag;
            return __pyx_t_float_complex_from_parts(
                (a.real * b.real + a.imag * b.imag) / denom,
                (a.imag * b.real - a.real * b.imag) / denom);
        }
    }
    #endif
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_neg_float(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zero_float(__pyx_t_float_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_conj_float(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE float __Pyx_c_abs_float(__pyx_t_float_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrtf(z.real*z.real + z.imag*z.imag);
          #else
            return hypotf(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_pow_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
            __pyx_t_float_complex z;
            float r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    float denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        z = __Pyx_c_prod_float(a, a);
                        return __Pyx_c_prod_float(a, a);
                    case 3:
                        z = __Pyx_c_prod_float(a, a);
                        return __Pyx_c_prod_float(z, a);
                    case 4:
                        z = __Pyx_c_prod_float(a, a);
                        return __Pyx_c_prod_float(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                } else if (b.imag == 0) {
                    z.real = powf(a.real, b.real);
                    z.imag = 0;
                    return z;
                } else if (a.real > 0) {
                    r = a.real;
                    theta = 0;
                } else {
                    r = -a.real;
                    theta = atan2f(0, -1);
                }
            } else {
                r = __Pyx_c_abs_float(a);
                theta = atan2f(a.imag, a.real);
            }
            lnr = logf(r);
            z_r = expf(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cosf(z_theta);
            z.imag = z_r * sinf(z_theta);
            return z;
        }
    #endif
#endif

/* Declarations */
    #if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return ::std::complex< double >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return x + y*(__pyx_t_double_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      __pyx_t_double_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

/* Arithmetic */
    #if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eq_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_sum_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_diff_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_prod_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    #if 1
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        if (b.imag == 0) {
            return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else if (fabs(b.real) >= fabs(b.imag)) {
            if (b.real == 0 && b.imag == 0) {
                return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
            } else {
                double r = b.imag / b.real;
                double s = 1.0 / (b.real + b.imag * r);
                return __pyx_t_double_complex_from_parts(
                    (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
            }
        } else {
            double r = b.real / b.imag;
            double s = 1.0 / (b.imag + b.real * r);
            return __pyx_t_double_complex_from_parts(
                (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
        }
    }
    #else
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        if (b.imag == 0) {
            return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else {
            double denom = b.real * b.real + b.imag * b.imag;
            return __pyx_t_double_complex_from_parts(
                (a.real * b.real + a.imag * b.imag) / denom,
                (a.imag * b.real - a.real * b.imag) / denom);
        }
    }
    #endif
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_neg_double(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zero_double(__pyx_t_double_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_conj_double(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE double __Pyx_c_abs_double(__pyx_t_double_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrt(z.real*z.real + z.imag*z.imag);
          #else
            return hypot(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_pow_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
            __pyx_t_double_complex z;
            double r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    double denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        z = __Pyx_c_prod_double(a, a);
                        return __Pyx_c_prod_double(a, a);
                    case 3:
                        z = __Pyx_c_prod_double(a, a);
                        return __Pyx_c_prod_double(z, a);
                    case 4:
                        z = __Pyx_c_prod_double(a, a);
                        return __Pyx_c_prod_double(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                } else if (b.imag == 0) {
                    z.real = pow(a.real, b.real);
                    z.imag = 0;
                    return z;
                } else if (a.real > 0) {
                    r = a.real;
                    theta = 0;
                } else {
                    r = -a.real;
                    theta = atan2(0, -1);
                }
            } else {
                r = __Pyx_c_abs_double(a);
                theta = atan2(a.imag, a.real);
            }
            lnr = log(r);
            z_r = exp(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cos(z_theta);
            z.imag = z_r * sin(z_theta);
            return z;
        }
    #endif
#endif

/* CIntToPy */
    static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
    const int neg_one = (int) -1, const_zero = (int) 0;
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(int) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(int) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(int) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
        return _PyLong_FromByteArray(bytes, sizeof(int),
                                     little, !is_unsigned);
    }
}

/* CIntToPy */
    static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value) {
    const enum NPY_TYPES neg_one = (enum NPY_TYPES) -1, const_zero = (enum NPY_TYPES) 0;
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(enum NPY_TYPES) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
        return _PyLong_FromByteArray(bytes, sizeof(enum NPY_TYPES),
                                     little, !is_unsigned);
    }
}

/* CIntFromPy */
    static CYTHON_INLINE Py_intptr_t __Pyx_PyInt_As_Py_intptr_t(PyObject *x) {
    const Py_intptr_t neg_one = (Py_intptr_t) -1, const_zero = (Py_intptr_t) 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if (sizeof(Py_intptr_t) < sizeof(long)) {
            __PYX_VERIFY_RETURN_INT(Py_intptr_t, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (Py_intptr_t) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (Py_intptr_t) 0;
                case  1: __PYX_VERIFY_RETURN_INT(Py_intptr_t, digit, digits[0])
                case 2:
                    if (8 * sizeof(Py_intptr_t) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) >= 2 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((((Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0]));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(Py_intptr_t) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) >= 3 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((((((Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0]));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(Py_intptr_t) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) >= 4 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((((((((Py_intptr_t)digits[3]) << PyLong_SHIFT) | (Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0]));
                        }
                    }
                    break;
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (Py_intptr_t) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if (sizeof(Py_intptr_t) <= sizeof(unsigned long)) {
                __PYX_VERIFY_RETURN_INT_EXC(Py_intptr_t, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(Py_intptr_t) <= sizeof(unsigned PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(Py_intptr_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (Py_intptr_t) 0;
                case -1: __PYX_VERIFY_RETURN_INT(Py_intptr_t, sdigit, (sdigit) (-(sdigit)digits[0]))
                case  1: __PYX_VERIFY_RETURN_INT(Py_intptr_t,  digit, +digits[0])
                case -2:
                    if (8 * sizeof(Py_intptr_t) - 1 > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 2 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((Py_intptr_t)-1)*(((((Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
                case 2:
                    if (8 * sizeof(Py_intptr_t) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 2 * PyLong_SHIFT) {
                            return (Py_intptr_t) ((((((Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
                case -3:
                    if (8 * sizeof(Py_intptr_t) - 1 > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 3 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((Py_intptr_t)-1)*(((((((Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(Py_intptr_t) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 3 * PyLong_SHIFT) {
                            return (Py_intptr_t) ((((((((Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
                case -4:
                    if (8 * sizeof(Py_intptr_t) - 1 > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 4 * PyLong_SHIFT) {
                            return (Py_intptr_t) (((Py_intptr_t)-1)*(((((((((Py_intptr_t)digits[3]) << PyLong_SHIFT) | (Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(Py_intptr_t) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(Py_intptr_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(Py_intptr_t) - 1 > 4 * PyLong_SHIFT) {
                            return (Py_intptr_t) ((((((((((Py_intptr_t)digits[3]) << PyLong_SHIFT) | (Py_intptr_t)digits[2]) << PyLong_SHIFT) | (Py_intptr_t)digits[1]) << PyLong_SHIFT) | (Py_intptr_t)digits[0])));
                        }
                    }
                    break;
            }
#endif
            if (sizeof(Py_intptr_t) <= sizeof(long)) {
                __PYX_VERIFY_RETURN_INT_EXC(Py_intptr_t, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(Py_intptr_t) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(Py_intptr_t, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
            PyErr_SetString(PyExc_RuntimeError,
                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
#else
            Py_intptr_t val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
 #if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
 #endif
            if (likely(v)) {
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                              bytes, sizeof(val),
                                              is_little, !is_unsigned);
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
#endif
            return (Py_intptr_t) -1;
        }
    } else {
        Py_intptr_t val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (Py_intptr_t) -1;
        val = __Pyx_PyInt_As_Py_intptr_t(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to Py_intptr_t");
    return (Py_intptr_t) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to Py_intptr_t");
    return (Py_intptr_t) -1;
}

/* CIntFromPy */
    static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
    const int neg_one = (int) -1, const_zero = (int) 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if (sizeof(int) < sizeof(long)) {
            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (int) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (int) 0;
                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
                case 2:
                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                        }
                    }
                    break;
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (int) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if (sizeof(int) <= sizeof(unsigned long)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (int) 0;
                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
                case -2:
                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
                case 2:
                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
                case -3:
                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
                case -4:
                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                        }
                    }
                    break;
            }
#endif
            if (sizeof(int) <= sizeof(long)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
            PyErr_SetString(PyExc_RuntimeError,
                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
#else
            int val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
 #if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
 #endif
            if (likely(v)) {
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                              bytes, sizeof(val),
                                              is_little, !is_unsigned);
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
#endif
            return (int) -1;
        }
    } else {
        int val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (int) -1;
        val = __Pyx_PyInt_As_int(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to int");
    return (int) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to int");
    return (int) -1;
}

/* CIntFromPy */
    static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
    const long neg_one = (long) -1, const_zero = (long) 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if (sizeof(long) < sizeof(long)) {
            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (long) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (long) 0;
                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
                case 2:
                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                        }
                    }
                    break;
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (long) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if (sizeof(long) <= sizeof(unsigned long)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            const digit* digits = ((PyLongObject*)x)->ob_digit;
            switch (Py_SIZE(x)) {
                case  0: return (long) 0;
                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
                case -2:
                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
                case 2:
                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
                case -3:
                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
                case 3:
                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
                case -4:
                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
                case 4:
                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                        }
                    }
                    break;
            }
#endif
            if (sizeof(long) <= sizeof(long)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
            PyErr_SetString(PyExc_RuntimeError,
                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
#else
            long val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
 #if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
 #endif
            if (likely(v)) {
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                              bytes, sizeof(val),
                                              is_little, !is_unsigned);
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
#endif
            return (long) -1;
        }
    } else {
        long val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (long) -1;
        val = __Pyx_PyInt_As_long(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to long");
    return (long) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to long");
    return (long) -1;
}

/* FastTypeChecks */
    #if CYTHON_COMPILING_IN_CPYTHON
static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
    while (a) {
        a = a->tp_base;
        if (a == b)
            return 1;
    }
    return b == &PyBaseObject_Type;
}
static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
    PyObject *mro;
    if (a == b) return 1;
    mro = a->tp_mro;
    if (likely(mro)) {
        Py_ssize_t i, n;
        n = PyTuple_GET_SIZE(mro);
        for (i = 0; i < n; i++) {
            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
                return 1;
        }
        return 0;
    }
    return __Pyx_InBases(a, b);
}
#if PY_MAJOR_VERSION == 2
static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
    PyObject *exception, *value, *tb;
    int res;
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    __Pyx_ErrFetch(&exception, &value, &tb);
    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
    if (unlikely(res == -1)) {
        PyErr_WriteUnraisable(err);
        res = 0;
    }
    if (!res) {
        res = PyObject_IsSubclass(err, exc_type2);
        if (unlikely(res == -1)) {
            PyErr_WriteUnraisable(err);
            res = 0;
        }
    }
    __Pyx_ErrRestore(exception, value, tb);
    return res;
}
#else
static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
    if (!res) {
        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
    }
    return res;
}
#endif
static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
    Py_ssize_t i, n;
    assert(PyExceptionClass_Check(exc_type));
    n = PyTuple_GET_SIZE(tuple);
#if PY_MAJOR_VERSION >= 3
    for (i=0; i<n; i++) {
        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
    }
#endif
    for (i=0; i<n; i++) {
        PyObject *t = PyTuple_GET_ITEM(tuple, i);
        #if PY_MAJOR_VERSION < 3
        if (likely(exc_type == t)) return 1;
        #endif
        if (likely(PyExceptionClass_Check(t))) {
            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
        } else {
        }
    }
    return 0;
}
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
    if (likely(err == exc_type)) return 1;
    if (likely(PyExceptionClass_Check(err))) {
        if (likely(PyExceptionClass_Check(exc_type))) {
            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
        } else if (likely(PyTuple_Check(exc_type))) {
            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
        } else {
        }
    }
    return PyErr_GivenExceptionMatches(err, exc_type);
}
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
    assert(PyExceptionClass_Check(exc_type1));
    assert(PyExceptionClass_Check(exc_type2));
    if (likely(err == exc_type1 || err == exc_type2)) return 1;
    if (likely(PyExceptionClass_Check(err))) {
        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
    }
    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
}
#endif

/* CheckBinaryVersion */
    static int __Pyx_check_binary_version(void) {
    char ctversion[4], rtversion[4];
    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
        char message[200];
        PyOS_snprintf(message, sizeof(message),
                      "compiletime version %s of module '%.100s' "
                      "does not match runtime version %s",
                      ctversion, __Pyx_MODULE_NAME, rtversion);
        return PyErr_WarnEx(NULL, message, 1);
    }
    return 0;
}

/* FunctionExport */
    static int __Pyx_ExportFunction(const char *name, void (*f)(void), const char *sig) {
    PyObject *d = 0;
    PyObject *cobj = 0;
    union {
        void (*fp)(void);
        void *p;
    } tmp;
    d = PyObject_GetAttrString(__pyx_m, (char *)"__pyx_capi__");
    if (!d) {
        PyErr_Clear();
        d = PyDict_New();
        if (!d)
            goto bad;
        Py_INCREF(d);
        if (PyModule_AddObject(__pyx_m, (char *)"__pyx_capi__", d) < 0)
            goto bad;
    }
    tmp.fp = f;
#if PY_VERSION_HEX >= 0x02070000
    cobj = PyCapsule_New(tmp.p, sig, 0);
#else
    cobj = PyCObject_FromVoidPtrAndDesc(tmp.p, (void *)sig, 0);
#endif
    if (!cobj)
        goto bad;
    if (PyDict_SetItemString(d, name, cobj) < 0)
        goto bad;
    Py_DECREF(cobj);
    Py_DECREF(d);
    return 0;
bad:
    Py_XDECREF(cobj);
    Py_XDECREF(d);
    return -1;
}

/* ModuleImport */
    #ifndef __PYX_HAVE_RT_ImportModule
#define __PYX_HAVE_RT_ImportModule
static PyObject *__Pyx_ImportModule(const char *name) {
    PyObject *py_name = 0;
    PyObject *py_module = 0;
    py_name = __Pyx_PyIdentifier_FromString(name);
    if (!py_name)
        goto bad;
    py_module = PyImport_Import(py_name);
    Py_DECREF(py_name);
    return py_module;
bad:
    Py_XDECREF(py_name);
    return 0;
}
#endif

/* TypeImport */
    #ifndef __PYX_HAVE_RT_ImportType
#define __PYX_HAVE_RT_ImportType
static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
    size_t size, int strict)
{
    PyObject *py_module = 0;
    PyObject *result = 0;
    PyObject *py_name = 0;
    char warning[200];
    Py_ssize_t basicsize;
#ifdef Py_LIMITED_API
    PyObject *py_basicsize;
#endif
    py_module = __Pyx_ImportModule(module_name);
    if (!py_module)
        goto bad;
    py_name = __Pyx_PyIdentifier_FromString(class_name);
    if (!py_name)
        goto bad;
    result = PyObject_GetAttr(py_module, py_name);
    Py_DECREF(py_name);
    py_name = 0;
    Py_DECREF(py_module);
    py_module = 0;
    if (!result)
        goto bad;
    if (!PyType_Check(result)) {
        PyErr_Format(PyExc_TypeError,
            "%.200s.%.200s is not a type object",
            module_name, class_name);
        goto bad;
    }
#ifndef Py_LIMITED_API
    basicsize = ((PyTypeObject *)result)->tp_basicsize;
#else
    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
    if (!py_basicsize)
        goto bad;
    basicsize = PyLong_AsSsize_t(py_basicsize);
    Py_DECREF(py_basicsize);
    py_basicsize = 0;
    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
        goto bad;
#endif
    if (!strict && (size_t)basicsize > size) {
        PyOS_snprintf(warning, sizeof(warning),
            "%s.%s size changed, may indicate binary incompatibility. Expected %zd, got %zd",
            module_name, class_name, basicsize, size);
        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
    }
    else if ((size_t)basicsize != size) {
        PyErr_Format(PyExc_ValueError,
            "%.200s.%.200s has the wrong size, try recompiling. Expected %zd, got %zd",
            module_name, class_name, basicsize, size);
        goto bad;
    }
    return (PyTypeObject *)result;
bad:
    Py_XDECREF(py_module);
    Py_XDECREF(result);
    return NULL;
}
#endif

/* VoidPtrImport */
    #ifndef __PYX_HAVE_RT_ImportVoidPtr
#define __PYX_HAVE_RT_ImportVoidPtr
static int __Pyx_ImportVoidPtr(PyObject *module, const char *name, void **p, const char *sig) {
    PyObject *d = 0;
    PyObject *cobj = 0;
    d = PyObject_GetAttrString(module, (char *)"__pyx_capi__");
    if (!d)
        goto bad;
    cobj = PyDict_GetItemString(d, name);
    if (!cobj) {
        PyErr_Format(PyExc_ImportError,
            "%.200s does not export expected C variable %.200s",
                PyModule_GetName(module), name);
        goto bad;
    }
#if PY_VERSION_HEX >= 0x02070000
    if (!PyCapsule_IsValid(cobj, sig)) {
        PyErr_Format(PyExc_TypeError,
            "C variable %.200s.%.200s has wrong signature (expected %.500s, got %.500s)",
             PyModule_GetName(module), name, sig, PyCapsule_GetName(cobj));
        goto bad;
    }
    *p = PyCapsule_GetPointer(cobj, sig);
#else
    {const char *desc, *s1, *s2;
    desc = (const char *)PyCObject_GetDesc(cobj);
    if (!desc)
        goto bad;
    s1 = desc; s2 = sig;
    while (*s1 != '\0' && *s1 == *s2) { s1++; s2++; }
    if (*s1 != *s2) {
        PyErr_Format(PyExc_TypeError,
            "C variable %.200s.%.200s has wrong signature (expected %.500s, got %.500s)",
             PyModule_GetName(module), name, sig, desc);
        goto bad;
    }
    *p = PyCObject_AsVoidPtr(cobj);}
#endif
    if (!(*p))
        goto bad;
    Py_DECREF(d);
    return 0;
bad:
    Py_XDECREF(d);
    return -1;
}
#endif

/* InitStrings */
    static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
    while (t->p) {
        #if PY_MAJOR_VERSION < 3
        if (t->is_unicode) {
            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
        } else if (t->intern) {
            *t->p = PyString_InternFromString(t->s);
        } else {
            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
        }
        #else
        if (t->is_unicode | t->is_str) {
            if (t->intern) {
                *t->p = PyUnicode_InternFromString(t->s);
            } else if (t->encoding) {
                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
            } else {
                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
            }
        } else {
            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
        }
        #endif
        if (!*t->p)
            return -1;
        if (PyObject_Hash(*t->p) == -1)
            return -1;
        ++t;
    }
    return 0;
}

static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
}
static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
    Py_ssize_t ignore;
    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
}
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
#if !CYTHON_PEP393_ENABLED
static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
    char* defenc_c;
    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
    if (!defenc) return NULL;
    defenc_c = PyBytes_AS_STRING(defenc);
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
    {
        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
        char* c;
        for (c = defenc_c; c < end; c++) {
            if ((unsigned char) (*c) >= 128) {
                PyUnicode_AsASCIIString(o);
                return NULL;
            }
        }
    }
#endif
    *length = PyBytes_GET_SIZE(defenc);
    return defenc_c;
}
#else
static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
    if (likely(PyUnicode_IS_ASCII(o))) {
        *length = PyUnicode_GET_LENGTH(o);
        return PyUnicode_AsUTF8(o);
    } else {
        PyUnicode_AsASCIIString(o);
        return NULL;
    }
#else
    return PyUnicode_AsUTF8AndSize(o, length);
#endif
}
#endif
#endif
static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
    if (
#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
            __Pyx_sys_getdefaultencoding_not_ascii &&
#endif
            PyUnicode_Check(o)) {
        return __Pyx_PyUnicode_AsStringAndSize(o, length);
    } else
#endif
#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
    if (PyByteArray_Check(o)) {
        *length = PyByteArray_GET_SIZE(o);
        return PyByteArray_AS_STRING(o);
    } else
#endif
    {
        char* result;
        int r = PyBytes_AsStringAndSize(o, &result, length);
        if (unlikely(r < 0)) {
            return NULL;
        } else {
            return result;
        }
    }
}
static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
   int is_true = x == Py_True;
   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
   else return PyObject_IsTrue(x);
}
static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
#if PY_MAJOR_VERSION >= 3
    if (PyLong_Check(result)) {
        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
                "__int__ returned non-int (type %.200s).  "
                "The ability to return an instance of a strict subclass of int "
                "is deprecated, and may be removed in a future version of Python.",
                Py_TYPE(result)->tp_name)) {
            Py_DECREF(result);
            return NULL;
        }
        return result;
    }
#endif
    PyErr_Format(PyExc_TypeError,
                 "__%.4s__ returned non-%.4s (type %.200s)",
                 type_name, type_name, Py_TYPE(result)->tp_name);
    Py_DECREF(result);
    return NULL;
}
static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
#if CYTHON_USE_TYPE_SLOTS
  PyNumberMethods *m;
#endif
  const char *name = NULL;
  PyObject *res = NULL;
#if PY_MAJOR_VERSION < 3
  if (likely(PyInt_Check(x) || PyLong_Check(x)))
#else
  if (likely(PyLong_Check(x)))
#endif
    return __Pyx_NewRef(x);
#if CYTHON_USE_TYPE_SLOTS
  m = Py_TYPE(x)->tp_as_number;
  #if PY_MAJOR_VERSION < 3
  if (m && m->nb_int) {
    name = "int";
    res = m->nb_int(x);
  }
  else if (m && m->nb_long) {
    name = "long";
    res = m->nb_long(x);
  }
  #else
  if (likely(m && m->nb_int)) {
    name = "int";
    res = m->nb_int(x);
  }
  #endif
#else
  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
    res = PyNumber_Int(x);
  }
#endif
  if (likely(res)) {
#if PY_MAJOR_VERSION < 3
    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
#else
    if (unlikely(!PyLong_CheckExact(res))) {
#endif
        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
    }
  }
  else if (!PyErr_Occurred()) {
    PyErr_SetString(PyExc_TypeError,
                    "an integer is required");
  }
  return res;
}
static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
  Py_ssize_t ival;
  PyObject *x;
#if PY_MAJOR_VERSION < 3
  if (likely(PyInt_CheckExact(b))) {
    if (sizeof(Py_ssize_t) >= sizeof(long))
        return PyInt_AS_LONG(b);
    else
        return PyInt_AsSsize_t(x);
  }
#endif
  if (likely(PyLong_CheckExact(b))) {
    #if CYTHON_USE_PYLONG_INTERNALS
    const digit* digits = ((PyLongObject*)b)->ob_digit;
    const Py_ssize_t size = Py_SIZE(b);
    if (likely(__Pyx_sst_abs(size) <= 1)) {
        ival = likely(size) ? digits[0] : 0;
        if (size == -1) ival = -ival;
        return ival;
    } else {
      switch (size) {
         case 2:
           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -2:
           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case 3:
           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -3:
           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case 4:
           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -4:
           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
      }
    }
    #endif
    return PyLong_AsSsize_t(b);
  }
  x = PyNumber_Index(b);
  if (!x) return -1;
  ival = PyInt_AsSsize_t(x);
  Py_DECREF(x);
  return ival;
}
static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
}
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
    return PyInt_FromSize_t(ival);
}


#endif /* Py_PYTHON_H */
