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# :Author:    Robert Kern
# :Copyright: 2004, Enthought, Inc.
# :License:   BSD Style


cdef extern from "Python.h":
    # Not part of the Python API, but we might as well define it here.
    # Note that the exact type doesn't actually matter for Pyrex.
    ctypedef int size_t

    # String API
    char* PyString_AsString(object string)
    char* PyString_AS_STRING(object string)
    object PyString_FromString(char* c_string)
    object PyString_FromStringAndSize(char* c_string, int length)

    # Float API
    double PyFloat_AsDouble(object ob) except? -1.0
    long PyInt_AsLong(object ob) except? -1

    # Memory API
    void* PyMem_Malloc(size_t n)
    void* PyMem_Realloc(void* buf, size_t n)
    void PyMem_Free(void* buf)

    void Py_DECREF(object obj)
    void Py_XDECREF(object obj)
    void Py_INCREF(object obj)
    void Py_XINCREF(object obj)

    # TypeCheck API
    int PyFloat_Check(object obj)
    int PyInt_Check(object obj)

    # Error API
    int PyErr_Occurred()
    void PyErr_Clear()

cdef extern from "string.h":
    void *memcpy(void *s1, void *s2, int n)

cdef extern from "math.h":
    double fabs(double x)