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    #define CYTHON_INLINE
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  #define _USE_MATH_DEFINES
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#include <math.h>
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#define __PYX_NAN() ((float) NAN)
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static CYTHON_INLINE float __PYX_NAN() {
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#define __Pyx_truncl trunc
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#define __Pyx_truncl truncl
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#define __PYX_ERR(f_index, lineno, Ln_error) \
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    #define __PYX_EXTERN_C extern
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#define __PYX_HAVE__sklearn__tree___utils
#define __PYX_HAVE_API__sklearn__tree___utils
#include "string.h"
#include "stdio.h"
#include "stdlib.h"
#include "numpy/arrayobject.h"
#include "numpy/ufuncobject.h"
#include "math.h"
#ifdef _OPENMP
#include <omp.h>
#endif /* _OPENMP */

#ifdef PYREX_WITHOUT_ASSERTIONS
#define CYTHON_WITHOUT_ASSERTIONS
#endif

#ifndef CYTHON_UNUSED
# if defined(__GNUC__)
#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
#     define CYTHON_UNUSED __attribute__ ((__unused__))
#   else
#     define CYTHON_UNUSED
#   endif
# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
#   define CYTHON_UNUSED __attribute__ ((__unused__))
# else
#   define CYTHON_UNUSED
# endif
#endif
#ifndef CYTHON_NCP_UNUSED
# if CYTHON_COMPILING_IN_CPYTHON
#  define CYTHON_NCP_UNUSED
# else
#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
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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)  (\
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          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) && defined (_M_X64)
    #define __Pyx_sst_abs(value) _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 char* __Pyx_PyObject_AsString(PyObject*);
static CYTHON_INLINE 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_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsUString(s)    ((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)
#if PY_MAJOR_VERSION < 3
static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
{
    const Py_UNICODE *u_end = u;
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}
#else
#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
#endif
#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)
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static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
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static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
#if CYTHON_COMPILING_IN_CPYTHON
#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
#else
#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
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#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))
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#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
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#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) {
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    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;
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        }
        __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) {
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    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;
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    Py_DECREF(default_encoding);
    return 0;
bad:
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/* 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 */
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  #define unlikely(x) (x)
#endif /* __GNUC__ */

static PyObject *__pyx_m;
static PyObject *__pyx_d;
static PyObject *__pyx_b;
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;

/* None.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
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static const char *__pyx_f[] = {
  "sklearn/tree/_utils.pyx",
  "__init__.pxd",
  "type.pxd",
};

/* "../../../../../usr/lib/python2.7/dist-packages/Cython/Includes/numpy/__init__.pxd":725
 * # 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":726
 * 
 * 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":727
 * 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":728
 * 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":732
 * #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":733
 * 
 * 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":734
 * 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":735
 * 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":739
 * #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":740
 * 
 * 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":749
 * # 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":750
 * # 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":751
 * 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":753
 * 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":754
 * 
 * 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":755
 * 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":757
 * 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":758
 * 
 * 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":760
 * 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":761
 * 
 * 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":762
 * 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;

/* "sklearn/tree/_utils.pxd":14
 * 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_6_utils_DTYPE_t;

/* "sklearn/tree/_utils.pxd":15
 * 
 * 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":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
 * 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":17
 * 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":18
 * 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;
/* None.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

/* None.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


/*--- Type declarations ---*/
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":764
 * 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":765
 * 
 * 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":766
 * 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":768
 * 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_6_utils_StackRecord;
struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord;
struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord;

/* "sklearn/tree/_utils.pxd":20
 * 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":61
 * 
 * # 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":87
 * 
 * # 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":116
 * 
 * # 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;
};

/* "sklearn/tree/_utils.pxd":70
 *     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":99
 *     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":120
 *     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":140
 * # =============================================================================
 * 
 * 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;
};



/* "sklearn/tree/_utils.pyx":92
 * # =============================================================================
 * 
 * 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":210
 * 
 * 
 * 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 *);
  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":311
 * # =============================================================================
 * 
 * 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 *);
  void (*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 *);
  int (*peek)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __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_weight_from_index)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t);
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t (*get_value_from_index)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedPQueue *, __pyx_t_7sklearn_4tree_6_utils_SIZE_t);
};
static struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedPQueue *__pyx_vtabptr_7sklearn_4tree_6_utils_WeightedPQueue;


/* "sklearn/tree/_utils.pyx":469
 * # =============================================================================
 * 
 * cdef class WeightedMedianCalculator:             # <<<<<<<<<<<<<<
 *     """A class to handle calculation of the weighted median from streams of
 *     data. To do so, it maintains a parameter ``k`` such that the sum of the
 */

struct __pyx_vtabstruct_7sklearn_4tree_6_utils_WeightedMedianCalculator {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t (*size)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *);
  int (*push)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t, __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t);
  void (*reset)(struct __pyx_obj_7sklearn_4tree_6_utils_WeightedMedianCalculator *);
  int (*update_median_parameters_post_push)(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);
  int (*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);
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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*/
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/* "sklearn/tree/_utils.pyx":71
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  /* "sklearn/tree/_utils.pyx":74
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 * 
 * cdef inline SIZE_t rand_int(SIZE_t low, SIZE_t high,             # <<<<<<<<<<<<<<
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/* "sklearn/tree/_utils.pyx":77
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 * 
 * cdef inline double rand_uniform(double low, double high,             # <<<<<<<<<<<<<<
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 * cdef inline double log(double x) nogil:             # <<<<<<<<<<<<<<
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/* "sklearn/tree/_utils.pyx":108
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  /* "sklearn/tree/_utils.pyx":119
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 *     cdef bint is_empty(self) nogil:
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 *     cdef int push(self, SIZE_t start, SIZE_t end, SIZE_t depth, SIZE_t parent,
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  /* "sklearn/tree/_utils.pyx":118
 *         free(self.stack_)
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 *     cdef bint is_empty(self) nogil:             # <<<<<<<<<<<<<<
 *         return self.top <= 0
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/* "sklearn/tree/_utils.pyx":121
 *         return self.top <= 0
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 *     cdef int push(self, SIZE_t start, SIZE_t end, SIZE_t depth, SIZE_t parent,             # <<<<<<<<<<<<<<
 *                   bint is_left, double impurity,
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 */

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) {
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  /* "sklearn/tree/_utils.pyx":128
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 */
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  /* "sklearn/tree/_utils.pyx":129
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 * 
 *         # Resize if capacity not sufficient
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  /* "sklearn/tree/_utils.pyx":132
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 */
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  /* "sklearn/tree/_utils.pyx":145
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  /* "sklearn/tree/_utils.pyx":146
 *         stack[top].depth = depth
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 *         stack[top].is_left = is_left             # <<<<<<<<<<<<<<
 *         stack[top].impurity = impurity
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  /* "sklearn/tree/_utils.pyx":147
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 */
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  /* "sklearn/tree/_utils.pyx":121
 *         return self.top <= 0
 * 
 *     cdef int push(self, SIZE_t start, SIZE_t end, SIZE_t depth, SIZE_t parent,             # <<<<<<<<<<<<<<
 *                   bint is_left, double impurity,
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 */

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/* "sklearn/tree/_utils.pyx":154
 *         return 0
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 */

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) {
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/* "sklearn/tree/_utils.pyx":176
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 */

static void __pyx_f_7sklearn_4tree_6_utils_heapify_up(struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord *__pyx_v_heap, __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_pos) {
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  struct __pyx_t_7sklearn_4tree_6_utils_PriorityHeapRecord __pyx_t_3;

  /* "sklearn/tree/_utils.pyx":179
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 * 
 */
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    /* "sklearn/tree/_utils.pyx":180
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 * 
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 */
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    /* "sklearn/tree/_utils.pyx":179
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 * 
 */
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  /* "sklearn/tree/_utils.pyx":182
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 *     cdef SIZE_t parent_pos = (pos - 1) / 2             # <<<<<<<<<<<<<<
 * 
 *     if heap[parent_pos].improvement < heap[pos].improvement:
 */
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  /* "sklearn/tree/_utils.pyx":184
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 *     if heap[parent_pos].improvement < heap[pos].improvement:             # <<<<<<<<<<<<<<
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 */
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 * 
 */
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    /* "sklearn/tree/_utils.pyx":184
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  /* "sklearn/tree/_utils.pyx":176
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 * 
 * cdef void heapify_up(PriorityHeapRecord* heap, SIZE_t pos) nogil:             # <<<<<<<<<<<<<<
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  /* function exit code */
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/* "sklearn/tree/_utils.pyx":189
 * 
 * 
 * cdef void heapify_down(PriorityHeapRecord* heap, SIZE_t pos,             # <<<<<<<<<<<<<<
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static void __pyx_f_7sklearn_4tree_6_utils_heapify_down(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) {
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  /* "sklearn/tree/_utils.pyx":193
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 */
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    /* "sklearn/tree/_utils.pyx":199
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    /* "sklearn/tree/_utils.pyx":197
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 * 
 *     if (right_pos < heap_length and             # <<<<<<<<<<<<<<
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 * 
 *     if (right_pos < heap_length and
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 */
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  /* "sklearn/tree/_utils.pyx":201
 *         largest = left_pos
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 *     if (right_pos < heap_length and             # <<<<<<<<<<<<<<
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    /* "sklearn/tree/_utils.pyx":203
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  /* "sklearn/tree/_utils.pyx":189
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 * 
 * cdef void heapify_down(PriorityHeapRecord* heap, SIZE_t pos,             # <<<<<<<<<<<<<<
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  /* function exit code */
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/* "sklearn/tree/_utils.pyx":230
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/* "sklearn/tree/_utils.pyx":285
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/* "sklearn/tree/_utils.pyx":350
 *         return self.array_ptr <= 0
 * 
 *     cdef SIZE_t size(self) nogil:             # <<<<<<<<<<<<<<
 *         return self.array_ptr
 * 
 */

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) {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_r;

  /* "sklearn/tree/_utils.pyx":351
 * 
 *     cdef SIZE_t size(self) nogil:
 *         return self.array_ptr             # <<<<<<<<<<<<<<
 * 
 *     cdef int push(self, DOUBLE_t data, DOUBLE_t weight) nogil:
 */
  __pyx_r = __pyx_v_self->array_ptr;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":350
 *         return self.array_ptr <= 0
 * 
 *     cdef SIZE_t size(self) nogil:             # <<<<<<<<<<<<<<
 *         return self.array_ptr
 * 
 */

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

/* "sklearn/tree/_utils.pyx":353
 *         return self.array_ptr
 * 
 *     cdef int push(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Push record on the array.
 *         Returns 0 if successful; -1 on out of memory error.
 */

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) {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_array_ptr;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_v_array;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_i;
  int __pyx_r;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_t_1;
  int __pyx_t_2;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_t_3;
  int __pyx_t_4;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord __pyx_t_5;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord __pyx_t_6;

  /* "sklearn/tree/_utils.pyx":357
 *         Returns 0 if successful; -1 on out of memory error.
 *         """
 *         cdef SIZE_t array_ptr = self.array_ptr             # <<<<<<<<<<<<<<
 *         cdef WeightedPQueueRecord* array = NULL
 *         cdef SIZE_t i
 */
  __pyx_t_1 = __pyx_v_self->array_ptr;
  __pyx_v_array_ptr = __pyx_t_1;

  /* "sklearn/tree/_utils.pyx":358
 *         """
 *         cdef SIZE_t array_ptr = self.array_ptr
 *         cdef WeightedPQueueRecord* array = NULL             # <<<<<<<<<<<<<<
 *         cdef SIZE_t i
 * 
 */
  __pyx_v_array = NULL;

  /* "sklearn/tree/_utils.pyx":362
 * 
 *         # Resize if capacity not sufficient
 *         if array_ptr >= self.capacity:             # <<<<<<<<<<<<<<
 *             self.capacity *= 2
 *             array = <WeightedPQueueRecord*> realloc(self.array_,
 */
  __pyx_t_2 = ((__pyx_v_array_ptr >= __pyx_v_self->capacity) != 0);
  if (__pyx_t_2) {

    /* "sklearn/tree/_utils.pyx":363
 *         # Resize if capacity not sufficient
 *         if array_ptr >= self.capacity:
 *             self.capacity *= 2             # <<<<<<<<<<<<<<
 *             array = <WeightedPQueueRecord*> realloc(self.array_,
 *                                                     self.capacity *
 */
    __pyx_v_self->capacity = (__pyx_v_self->capacity * 2);

    /* "sklearn/tree/_utils.pyx":364
 *         if array_ptr >= self.capacity:
 *             self.capacity *= 2
 *             array = <WeightedPQueueRecord*> realloc(self.array_,             # <<<<<<<<<<<<<<
 *                                                     self.capacity *
 *                                                     sizeof(WeightedPQueueRecord))
 */
    __pyx_v_array = ((struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *)realloc(__pyx_v_self->array_, (__pyx_v_self->capacity * (sizeof(struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord)))));

    /* "sklearn/tree/_utils.pyx":368
 *                                                     sizeof(WeightedPQueueRecord))
 * 
 *             if array == NULL:             # <<<<<<<<<<<<<<
 *                 # no free; __dealloc__ handles that
 *                 return -1
 */
    __pyx_t_2 = ((__pyx_v_array == NULL) != 0);
    if (__pyx_t_2) {

      /* "sklearn/tree/_utils.pyx":370
 *             if array == NULL:
 *                 # no free; __dealloc__ handles that
 *                 return -1             # <<<<<<<<<<<<<<
 *             self.array_ = array
 * 
 */
      __pyx_r = -1;
      goto __pyx_L0;

      /* "sklearn/tree/_utils.pyx":368
 *                                                     sizeof(WeightedPQueueRecord))
 * 
 *             if array == NULL:             # <<<<<<<<<<<<<<
 *                 # no free; __dealloc__ handles that
 *                 return -1
 */
    }

    /* "sklearn/tree/_utils.pyx":371
 *                 # no free; __dealloc__ handles that
 *                 return -1
 *             self.array_ = array             # <<<<<<<<<<<<<<
 * 
 *         # Put element as last element of array
 */
    __pyx_v_self->array_ = __pyx_v_array;

    /* "sklearn/tree/_utils.pyx":362
 * 
 *         # Resize if capacity not sufficient
 *         if array_ptr >= self.capacity:             # <<<<<<<<<<<<<<
 *             self.capacity *= 2
 *             array = <WeightedPQueueRecord*> realloc(self.array_,
 */
  }

  /* "sklearn/tree/_utils.pyx":374
 * 
 *         # Put element as last element of array
 *         array = self.array_             # <<<<<<<<<<<<<<
 *         array[array_ptr].data = data
 *         array[array_ptr].weight = weight
 */
  __pyx_t_3 = __pyx_v_self->array_;
  __pyx_v_array = __pyx_t_3;

  /* "sklearn/tree/_utils.pyx":375
 *         # Put element as last element of array
 *         array = self.array_
 *         array[array_ptr].data = data             # <<<<<<<<<<<<<<
 *         array[array_ptr].weight = weight
 * 
 */
  (__pyx_v_array[__pyx_v_array_ptr]).data = __pyx_v_data;

  /* "sklearn/tree/_utils.pyx":376
 *         array = self.array_
 *         array[array_ptr].data = data
 *         array[array_ptr].weight = weight             # <<<<<<<<<<<<<<
 * 
 *         # bubble last element up according until it is sorted
 */
  (__pyx_v_array[__pyx_v_array_ptr]).weight = __pyx_v_weight;

  /* "sklearn/tree/_utils.pyx":380
 *         # bubble last element up according until it is sorted
 *         # in ascending order
 *         i = array_ptr             # <<<<<<<<<<<<<<
 *         while(i != 0 and array[i].data < array[i-1].data):
 *             array[i], array[i-1] = array[i-1], array[i]
 */
  __pyx_v_i = __pyx_v_array_ptr;

  /* "sklearn/tree/_utils.pyx":381
 *         # in ascending order
 *         i = array_ptr
 *         while(i != 0 and array[i].data < array[i-1].data):             # <<<<<<<<<<<<<<
 *             array[i], array[i-1] = array[i-1], array[i]
 *             i -= 1
 */
  while (1) {
    __pyx_t_4 = ((__pyx_v_i != 0) != 0);
    if (__pyx_t_4) {
    } else {
      __pyx_t_2 = __pyx_t_4;
      goto __pyx_L7_bool_binop_done;
    }
    __pyx_t_4 = (((__pyx_v_array[__pyx_v_i]).data < (__pyx_v_array[(__pyx_v_i - 1)]).data) != 0);
    __pyx_t_2 = __pyx_t_4;
    __pyx_L7_bool_binop_done:;
    if (!__pyx_t_2) break;

    /* "sklearn/tree/_utils.pyx":382
 *         i = array_ptr
 *         while(i != 0 and array[i].data < array[i-1].data):
 *             array[i], array[i-1] = array[i-1], array[i]             # <<<<<<<<<<<<<<
 *             i -= 1
 * 
 */
    __pyx_t_5 = (__pyx_v_array[(__pyx_v_i - 1)]);
    __pyx_t_6 = (__pyx_v_array[__pyx_v_i]);
    (__pyx_v_array[__pyx_v_i]) = __pyx_t_5;
    (__pyx_v_array[(__pyx_v_i - 1)]) = __pyx_t_6;

    /* "sklearn/tree/_utils.pyx":383
 *         while(i != 0 and array[i].data < array[i-1].data):
 *             array[i], array[i-1] = array[i-1], array[i]
 *             i -= 1             # <<<<<<<<<<<<<<
 * 
 *         # Increase element count
 */
    __pyx_v_i = (__pyx_v_i - 1);
  }

  /* "sklearn/tree/_utils.pyx":386
 * 
 *         # Increase element count
 *         self.array_ptr = array_ptr + 1             # <<<<<<<<<<<<<<
 *         return 0
 * 
 */
  __pyx_v_self->array_ptr = (__pyx_v_array_ptr + 1);

  /* "sklearn/tree/_utils.pyx":387
 *         # Increase element count
 *         self.array_ptr = array_ptr + 1
 *         return 0             # <<<<<<<<<<<<<<
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:
 */
  __pyx_r = 0;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":353
 *         return self.array_ptr
 * 
 *     cdef int push(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Push record on the array.
 *         Returns 0 if successful; -1 on out of memory error.
 */

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

/* "sklearn/tree/_utils.pyx":389
 *         return 0
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove a specific value/weight record from the array.
 *         Returns 0 if successful, -1 if record not found."""
 */

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) {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_array_ptr;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_v_array;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_idx_to_remove;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_i;
  int __pyx_r;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_t_1;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_t_2;
  int __pyx_t_3;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_t_4;
  int __pyx_t_5;
  long __pyx_t_6;

  /* "sklearn/tree/_utils.pyx":392
 *         """Remove a specific value/weight record from the array.
 *         Returns 0 if successful, -1 if record not found."""
 *         cdef SIZE_t array_ptr = self.array_ptr             # <<<<<<<<<<<<<<
 *         cdef WeightedPQueueRecord* array = self.array_
 *         cdef SIZE_t idx_to_remove = -1
 */
  __pyx_t_1 = __pyx_v_self->array_ptr;
  __pyx_v_array_ptr = __pyx_t_1;

  /* "sklearn/tree/_utils.pyx":393
 *         Returns 0 if successful, -1 if record not found."""
 *         cdef SIZE_t array_ptr = self.array_ptr
 *         cdef WeightedPQueueRecord* array = self.array_             # <<<<<<<<<<<<<<
 *         cdef SIZE_t idx_to_remove = -1
 *         cdef SIZE_t i
 */
  __pyx_t_2 = __pyx_v_self->array_;
  __pyx_v_array = __pyx_t_2;

  /* "sklearn/tree/_utils.pyx":394
 *         cdef SIZE_t array_ptr = self.array_ptr
 *         cdef WeightedPQueueRecord* array = self.array_
 *         cdef SIZE_t idx_to_remove = -1             # <<<<<<<<<<<<<<
 *         cdef SIZE_t i
 * 
 */
  __pyx_v_idx_to_remove = -1;

  /* "sklearn/tree/_utils.pyx":397
 *         cdef SIZE_t i
 * 
 *         if array_ptr <= 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_3 = ((__pyx_v_array_ptr <= 0) != 0);
  if (__pyx_t_3) {

    /* "sklearn/tree/_utils.pyx":398
 * 
 *         if array_ptr <= 0:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         # find element to remove
 */
    __pyx_r = -1;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":397
 *         cdef SIZE_t i
 * 
 *         if array_ptr <= 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":401
 * 
 *         # find element to remove
 *         for i in range(array_ptr):             # <<<<<<<<<<<<<<
 *             if array[i].data == data and array[i].weight == weight:
 *                 idx_to_remove = i
 */
  __pyx_t_1 = __pyx_v_array_ptr;
  for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_1; __pyx_t_4+=1) {
    __pyx_v_i = __pyx_t_4;

    /* "sklearn/tree/_utils.pyx":402
 *         # find element to remove
 *         for i in range(array_ptr):
 *             if array[i].data == data and array[i].weight == weight:             # <<<<<<<<<<<<<<
 *                 idx_to_remove = i
 *                 break
 */
    __pyx_t_5 = (((__pyx_v_array[__pyx_v_i]).data == __pyx_v_data) != 0);
    if (__pyx_t_5) {
    } else {
      __pyx_t_3 = __pyx_t_5;
      goto __pyx_L7_bool_binop_done;
    }
    __pyx_t_5 = (((__pyx_v_array[__pyx_v_i]).weight == __pyx_v_weight) != 0);
    __pyx_t_3 = __pyx_t_5;
    __pyx_L7_bool_binop_done:;
    if (__pyx_t_3) {

      /* "sklearn/tree/_utils.pyx":403
 *         for i in range(array_ptr):
 *             if array[i].data == data and array[i].weight == weight:
 *                 idx_to_remove = i             # <<<<<<<<<<<<<<
 *                 break
 * 
 */
      __pyx_v_idx_to_remove = __pyx_v_i;

      /* "sklearn/tree/_utils.pyx":404
 *             if array[i].data == data and array[i].weight == weight:
 *                 idx_to_remove = i
 *                 break             # <<<<<<<<<<<<<<
 * 
 *         if idx_to_remove == -1:
 */
      goto __pyx_L5_break;

      /* "sklearn/tree/_utils.pyx":402
 *         # find element to remove
 *         for i in range(array_ptr):
 *             if array[i].data == data and array[i].weight == weight:             # <<<<<<<<<<<<<<
 *                 idx_to_remove = i
 *                 break
 */
    }
  }
  __pyx_L5_break:;

  /* "sklearn/tree/_utils.pyx":406
 *                 break
 * 
 *         if idx_to_remove == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_3 = ((__pyx_v_idx_to_remove == -1L) != 0);
  if (__pyx_t_3) {

    /* "sklearn/tree/_utils.pyx":407
 * 
 *         if idx_to_remove == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         # shift the elements after the removed element
 */
    __pyx_r = -1;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":406
 *                 break
 * 
 *         if idx_to_remove == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":411
 *         # shift the elements after the removed element
 *         # to the left.
 *         for i in range(idx_to_remove, array_ptr-1):             # <<<<<<<<<<<<<<
 *             array[i] = array[i+1]
 * 
 */
  __pyx_t_6 = (__pyx_v_array_ptr - 1);
  for (__pyx_t_1 = __pyx_v_idx_to_remove; __pyx_t_1 < __pyx_t_6; __pyx_t_1+=1) {
    __pyx_v_i = __pyx_t_1;

    /* "sklearn/tree/_utils.pyx":412
 *         # to the left.
 *         for i in range(idx_to_remove, array_ptr-1):
 *             array[i] = array[i+1]             # <<<<<<<<<<<<<<
 * 
 *         self.array_ptr = array_ptr - 1
 */
    (__pyx_v_array[__pyx_v_i]) = (__pyx_v_array[(__pyx_v_i + 1)]);
  }

  /* "sklearn/tree/_utils.pyx":414
 *             array[i] = array[i+1]
 * 
 *         self.array_ptr = array_ptr - 1             # <<<<<<<<<<<<<<
 *         return 0
 * 
 */
  __pyx_v_self->array_ptr = (__pyx_v_array_ptr - 1);

  /* "sklearn/tree/_utils.pyx":415
 * 
 *         self.array_ptr = array_ptr - 1
 *         return 0             # <<<<<<<<<<<<<<
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:
 */
  __pyx_r = 0;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":389
 *         return 0
 * 
 *     cdef int remove(self, DOUBLE_t data, DOUBLE_t weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove a specific value/weight record from the array.
 *         Returns 0 if successful, -1 if record not found."""
 */

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

/* "sklearn/tree/_utils.pyx":417
 *         return 0
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove the top (minimum) element from array.
 *         Returns 0 if successful, -1 if nothing to remove."""
 */

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) {
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_array_ptr;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_v_array;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_v_i;
  int __pyx_r;
  __pyx_t_7sklearn_4tree_6_utils_SIZE_t __pyx_t_1;
  struct __pyx_t_7sklearn_4tree_6_utils_WeightedPQueueRecord *__pyx_t_2;
  int __pyx_t_3;
  __pyx_t_7sklearn_4tree_6_utils_DOUBLE_t __pyx_t_4;
  long __pyx_t_5;

  /* "sklearn/tree/_utils.pyx":420
 *         """Remove the top (minimum) element from array.
 *         Returns 0 if successful, -1 if nothing to remove."""
 *         cdef SIZE_t array_ptr = self.array_ptr             # <<<<<<<<<<<<<<
 *         cdef WeightedPQueueRecord* array = self.array_
 *         cdef SIZE_t i
 */
  __pyx_t_1 = __pyx_v_self->array_ptr;
  __pyx_v_array_ptr = __pyx_t_1;

  /* "sklearn/tree/_utils.pyx":421
 *         Returns 0 if successful, -1 if nothing to remove."""
 *         cdef SIZE_t array_ptr = self.array_ptr
 *         cdef WeightedPQueueRecord* array = self.array_             # <<<<<<<<<<<<<<
 *         cdef SIZE_t i
 * 
 */
  __pyx_t_2 = __pyx_v_self->array_;
  __pyx_v_array = __pyx_t_2;

  /* "sklearn/tree/_utils.pyx":424
 *         cdef SIZE_t i
 * 
 *         if array_ptr <= 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_3 = ((__pyx_v_array_ptr <= 0) != 0);
  if (__pyx_t_3) {

    /* "sklearn/tree/_utils.pyx":425
 * 
 *         if array_ptr <= 0:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         data[0] = array[0].data
 */
    __pyx_r = -1;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":424
 *         cdef SIZE_t i
 * 
 *         if array_ptr <= 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":427
 *             return -1
 * 
 *         data[0] = array[0].data             # <<<<<<<<<<<<<<
 *         weight[0] = array[0].weight
 * 
 */
  __pyx_t_4 = (__pyx_v_array[0]).data;
  (__pyx_v_data[0]) = __pyx_t_4;

  /* "sklearn/tree/_utils.pyx":428
 * 
 *         data[0] = array[0].data
 *         weight[0] = array[0].weight             # <<<<<<<<<<<<<<
 * 
 *         # shift the elements after the removed element
 */
  __pyx_t_4 = (__pyx_v_array[0]).weight;
  (__pyx_v_weight[0]) = __pyx_t_4;

  /* "sklearn/tree/_utils.pyx":432
 *         # shift the elements after the removed element
 *         # to the left.
 *         for i in range(0, array_ptr-1):             # <<<<<<<<<<<<<<
 *             array[i] = array[i+1]
 * 
 */
  __pyx_t_5 = (__pyx_v_array_ptr - 1);
  for (__pyx_t_1 = 0; __pyx_t_1 < __pyx_t_5; __pyx_t_1+=1) {
    __pyx_v_i = __pyx_t_1;

    /* "sklearn/tree/_utils.pyx":433
 *         # to the left.
 *         for i in range(0, array_ptr-1):
 *             array[i] = array[i+1]             # <<<<<<<<<<<<<<
 * 
 *         self.array_ptr = array_ptr - 1
 */
    (__pyx_v_array[__pyx_v_i]) = (__pyx_v_array[(__pyx_v_i + 1)]);
  }

  /* "sklearn/tree/_utils.pyx":435
 *             array[i] = array[i+1]
 * 
 *         self.array_ptr = array_ptr - 1             # <<<<<<<<<<<<<<
 *         return 0
 * 
 */
  __pyx_v_self->array_ptr = (__pyx_v_array_ptr - 1);

  /* "sklearn/tree/_utils.pyx":436
 * 
 *         self.array_ptr = array_ptr - 1
 *         return 0             # <<<<<<<<<<<<<<
 * 
 *     cdef int peek(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:
 */
  __pyx_r = 0;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":417
 *         return 0
 * 
 *     cdef int pop(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
 *         """Remove the top (minimum) element from array.
 *         Returns 0 if successful, -1 if nothing to remove."""
 */

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

/* "sklearn/tree/_utils.pyx":438
 *         return 0
 * 
 *     cdef int peek(self, DOUBLE_t* data, DOUBLE_t* weight) nogil:             # <<<<<<<<<<<<<<
 *         """Write the top element from array to a pointer.
 *         Returns 0 if successful, -1 if nothing to write."""
 */

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  /* "sklearn/tree/_utils.pyx":532
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/* "sklearn/tree/_utils.pyx":537
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 *         if self.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":546
 *         if self.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_weight;

    /* "sklearn/tree/_utils.pyx":547
 *             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":548
 *             self.total_weight = weight
 *             self.sum_w_0_k = self.total_weight
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *         # get the original weighted median
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":544
 * 
 *         # trivial case of one element.
 *         if self.size() == 1:             # <<<<<<<<<<<<<<
 *             self.k = 1
 *             self.total_weight = weight
 */
  }

  /* "sklearn/tree/_utils.pyx":551
 * 
 *         # get the original 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":553
 *         self.total_weight += weight
 * 
 *         if data < original_median:             # <<<<<<<<<<<<<<
 *             # inserting below the median, so increment k and
 *             # then update self.sum_w_0_k accordingly by adding
 */
  __pyx_t_1 = ((__pyx_v_data < __pyx_v_original_median) != 0);
  if (__pyx_t_1) {

    /* "sklearn/tree/_utils.pyx":557
 *             # then update self.sum_w_0_k accordingly by adding
 *             # the weight that was added.
 *             self.k += 1             # <<<<<<<<<<<<<<
 *             # update sum_w_0_k by adding the weight added
 *             self.sum_w_0_k += weight
 */
    __pyx_v_self->k = (__pyx_v_self->k + 1);

    /* "sklearn/tree/_utils.pyx":559
 *             self.k += 1
 *             # update sum_w_0_k by adding the weight added
 *             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":563
 *             # minimize k such that sum(W[0:k]) >= total_weight / 2
 *             # minimum value of k is 1
 *             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_L7_bool_binop_done;
      }

      /* "sklearn/tree/_utils.pyx":565
 *             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_L7_bool_binop_done:;
      if (!__pyx_t_1) break;

      /* "sklearn/tree/_utils.pyx":566
 *                                    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":567
 *                                   >= 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->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));
    }

    /* "sklearn/tree/_utils.pyx":568
 *                 self.k -= 1
 *                 self.sum_w_0_k -= self.samples.get_weight_from_index(self.k)
 *             return 0             # <<<<<<<<<<<<<<
 * 
 *         if data >= original_median:
 */
    __pyx_r = 0;
    goto __pyx_L0;

    /* "sklearn/tree/_utils.pyx":553
 *         self.total_weight += weight
 * 
 *         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":570
 *             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":573
 *             # 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":574
 *             # 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":575
 *             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":576
 *                   (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":577
 *                 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":570
 *             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":537
 *         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":579
 *             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":586
 *         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":587
 * 
 *         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":586
 *         cdef DOUBLE_t original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":589
 *             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":590
 * 
 *         return_value = self.samples.remove(data, weight)
 *         self.update_median_parameters_post_remove(data, weight,             # <<<<<<<<<<<<<<
 *                                                   original_median)
 *         return return_value
 */
  ((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":592
 *         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":579
 *             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":594
 *         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":601
 *         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":602
 * 
 *         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":601
 *         cdef double original_median
 * 
 *         if self.size() != 0:             # <<<<<<<<<<<<<<
 *             original_median = self.get_median()
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":605
 * 
 *         # 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":606
 *         # 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":605
 * 
 *         # no elements to pop
 *         if self.samples.size() == 0:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "sklearn/tree/_utils.pyx":608
 *             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":609
 * 
 *         return_value = self.samples.pop(data, weight)
 *         self.update_median_parameters_post_remove(data[0],             # <<<<<<<<<<<<<<
 *                                                   weight[0],
 *                                                   original_median)
 */
  ((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":612
 *                                                   weight[0],
 *                                                   original_median)
 *         return return_value             # <<<<<<<<<<<<<<
 * 
 *     cdef int update_median_parameters_post_remove(self, DOUBLE_t data,
 */
  __pyx_r = __pyx_v_return_value;
  goto __pyx_L0;

  /* "sklearn/tree/_utils.pyx":594
 *         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":614
 *         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":620
 *         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":621
 *         # 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":622
 *         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":623
 *             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":624
 *             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":620
 *         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":627
 * 
 *         # 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":628
 *         # 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":629
 *         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":630
 *             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":631
 *             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":627
 * 
 *         # trivial case of one element.
 *         if self.samples.size() == 1:             # <<<<<<<<<<<<<<
 *             self.k = 1
 *             self.total_weight -= weight
 */
  }

  /* "sklearn/tree/_utils.pyx":634
 * 
 *         # 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":636
 *         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":641
 *             # 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);

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            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 = PyThreadState_GET();
        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

/* 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(PyObject_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);
}

/* 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");
}

/* 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;
}

/* 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_VERSION_HEX < 0x03030000
    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, '.')) {
                #if PY_VERSION_HEX < 0x03030000
                PyObject *py_level = PyInt_FromLong(1);
                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, 1);
                #endif
                if (!module) {
                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
                        goto bad;
                    PyErr_Clear();
                }
            }
            level = 0;
        }
        #endif
        if (!module) {
            #if PY_VERSION_HEX < 0x03030000
            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_VERSION_HEX < 0x03030000
    Py_XDECREF(py_import);
    #endif
    Py_XDECREF(empty_list);
    Py_XDECREF(empty_dict);
    return module;
}

/* 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;
    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(
        PyThreadState_GET(), /*PyThreadState *tstate,*/
        py_code,             /*PyCodeObject *code,*/
        __pyx_d,      /*PyObject *globals,*/
        0                    /*PyObject *locals*/
    );
    if (!py_frame) goto bad;
    py_frame->f_lineno = 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;\
    }

/* 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);
        } else if (sizeof(Py_intptr_t) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
        }
    } else {
        if (sizeof(Py_intptr_t) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(Py_intptr_t) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
        }
    }
    {
        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);
        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
        }
    } else {
        if (sizeof(long) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
        return _PyLong_FromByteArray(bytes, sizeof(long),
                                     little, !is_unsigned);
    }
}

/* None */
  #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

/* None */
  #if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eqf(__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_sumf(__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_difff(__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_prodf(__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;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quotf(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        float denom = b.real * b.real + b.imag * b.imag;
        z.real = (a.real * b.real + a.imag * b.imag) / denom;
        z.imag = (a.imag * b.real - a.real * b.imag) / denom;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_negf(__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_zerof(__pyx_t_float_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_conjf(__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_absf(__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_powf(__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_prodf(a, a);
                        return __Pyx_c_prodf(a, a);
                    case 3:
                        z = __Pyx_c_prodf(a, a);
                        return __Pyx_c_prodf(z, a);
                    case 4:
                        z = __Pyx_c_prodf(a, a);
                        return __Pyx_c_prodf(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                }
                r = a.real;
                theta = 0;
            } else {
                r = __Pyx_c_absf(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

/* None */
  #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

/* None */
  #if CYTHON_CCOMPLEX
#else
    static CYTHON_INLINE int __Pyx_c_eq(__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(__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(__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(__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;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        double denom = b.real * b.real + b.imag * b.imag;
        z.real = (a.real * b.real + a.imag * b.imag) / denom;
        z.imag = (a.imag * b.real - a.real * b.imag) / denom;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_neg(__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(__pyx_t_double_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_conj(__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(__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(__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(a, a);
                        return __Pyx_c_prod(a, a);
                    case 3:
                        z = __Pyx_c_prod(a, a);
                        return __Pyx_c_prod(z, a);
                    case 4:
                        z = __Pyx_c_prod(a, a);
                        return __Pyx_c_prod(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                }
                r = a.real;
                theta = 0;
            } else {
                r = __Pyx_c_abs(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);
        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
        }
    } else {
        if (sizeof(int) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
        }
    }
    {
        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);
        } else if (sizeof(enum NPY_TYPES) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
        }
    } else {
        if (sizeof(enum NPY_TYPES) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(enum NPY_TYPES) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
        }
    }
    {
        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))
            } 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))
            }
        } 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))
            } else if (sizeof(Py_intptr_t) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(Py_intptr_t, PY_LONG_LONG, PyLong_AsLongLong(x))
            }
        }
        {
#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))
            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
            }
        } 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))
            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
            }
        }
        {
#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))
            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
            }
        } 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))
            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
            }
        }
        {
#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;
}

/* 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

/* 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;
        ++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 char* __Pyx_PyObject_AsString(PyObject* o) {
    Py_ssize_t ignore;
    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
}
static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
#if CYTHON_COMPILING_IN_CPYTHON && (__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)) {
#if PY_VERSION_HEX < 0x03030000
        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
        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
        if (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
    } 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 CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
  PyNumberMethods *m;
  const char *name = NULL;
  PyObject *res = NULL;
#if PY_MAJOR_VERSION < 3
  if (PyInt_Check(x) || PyLong_Check(x))
#else
  if (PyLong_Check(x))
#endif
    return __Pyx_NewRef(x);
  m = Py_TYPE(x)->tp_as_number;
#if PY_MAJOR_VERSION < 3
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Int(x);
  }
  else if (m && m->nb_long) {
    name = "long";
    res = PyNumber_Long(x);
  }
#else
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Long(x);
  }
#endif
  if (res) {
#if PY_MAJOR_VERSION < 3
    if (!PyInt_Check(res) && !PyLong_Check(res)) {
#else
    if (!PyLong_Check(res)) {
#endif
      PyErr_Format(PyExc_TypeError,
                   "__%.4s__ returned non-%.4s (type %.200s)",
                   name, name, Py_TYPE(res)->tp_name);
      Py_DECREF(res);
      return NULL;
    }
  }
  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_PyInt_FromSize_t(size_t ival) {
    return PyInt_FromSize_t(ival);
}


#endif /* Py_PYTHON_H */
