#ifndef Py_LONGOBJECT_H

#define Py_LONGOBJECT_H

#ifdef __cplusplus

extern "C" {

#endif

/* Long (arbitrary precision) integer object interface */

typedef struct _longobject PyLongObject; /* Revealed in longintrepr.h */

PyAPI_DATA(PyTypeObject) PyLong_Type;

#define PyLong_Check(op) PyObject_TypeCheck(op, &PyLong_Type)

#define PyLong_CheckExact(op) ((op)->ob_type == &PyLong_Type)

PyAPI_FUNC(PyObject *) PyLong_FromLong(long);

PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);

PyAPI_FUNC(PyObject *) PyLong_FromDouble(double);

PyAPI_FUNC(long) PyLong_AsLong(PyObject *);

PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLong(PyObject *);

PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLongMask(PyObject *);

/* For use by intobject.c only */

PyAPI_FUNC(Py_ssize_t) _PyLong_AsSsize_t(PyObject *);

PyAPI_FUNC(PyObject *) _PyLong_FromSize_t(size_t);

PyAPI_FUNC(PyObject *) _PyLong_FromSsize_t(Py_ssize_t);

PyAPI_DATA(int) _PyLong_DigitValue[256];

/* _PyLong_AsScaledDouble returns a double x and an exponent e such that

   the true value is approximately equal to x * 2**(SHIFT*e).  e is >= 0.

   x is 0.0 if and only if the input is 0 (in which case, e and x are both

   zeroes).  Overflow is impossible.  Note that the exponent returned must

   be multiplied by SHIFT!  There may not be enough room in an int to store

   e*SHIFT directly. */

PyAPI_FUNC(double) _PyLong_AsScaledDouble(PyObject *vv, int *e);

PyAPI_FUNC(double) PyLong_AsDouble(PyObject *);

PyAPI_FUNC(PyObject *) PyLong_FromVoidPtr(void *);

PyAPI_FUNC(void *) PyLong_AsVoidPtr(PyObject *);

#ifdef HAVE_LONG_LONG

PyAPI_FUNC(PyObject *) PyLong_FromLongLong(PY_LONG_LONG);

PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLongLong(unsigned PY_LONG_LONG);

PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLong(PyObject *);

PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLong(PyObject *);

PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLongMask(PyObject *);

#endif /* HAVE_LONG_LONG */

PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);

#ifdef Py_USING_UNICODE

PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);

#endif

/* _PyLong_Sign.  Return 0 if v is 0, -1 if v < 0, +1 if v > 0.

   v must not be NULL, and must be a normalized long.

   There are no error cases.

*/

PyAPI_FUNC(int) _PyLong_Sign(PyObject *v);

/* _PyLong_NumBits.  Return the number of bits needed to represent the

   absolute value of a long.  For example, this returns 1 for 1 and -1, 2

   for 2 and -2, and 2 for 3 and -3.  It returns 0 for 0.

   v must not be NULL, and must be a normalized long.

   (size_t)-1 is returned and OverflowError set if the true result doesn't

   fit in a size_t.

*/

PyAPI_FUNC(size_t) _PyLong_NumBits(PyObject *v);

/* _PyLong_FromByteArray:  View the n unsigned bytes as a binary integer in

   base 256, and return a Python long with the same numeric value.

   If n is 0, the integer is 0.  Else:

   If little_endian is 1/true, bytes[n-1] is the MSB and bytes[0] the LSB;

   else (little_endian is 0/false) bytes[0] is the MSB and bytes[n-1] the

   LSB.

   If is_signed is 0/false, view the bytes as a non-negative integer.

   If is_signed is 1/true, view the bytes as a 2's-complement integer,

   non-negative if bit 0x80 of the MSB is clear, negative if set.

   Error returns:

   + Return NULL with the appropriate exception set if there's not

     enough memory to create the Python long.

*/

PyAPI_FUNC(PyObject *) _PyLong_FromByteArray(

	const unsigned char* bytes, size_t n,

	int little_endian, int is_signed);

/* _PyLong_AsByteArray: Convert the least-significant 8*n bits of long

   v to a base-256 integer, stored in array bytes.  Normally return 0,

   return -1 on error.

   If little_endian is 1/true, store the MSB at bytes[n-1] and the LSB at

   bytes[0]; else (little_endian is 0/false) store the MSB at bytes[0] and

   the LSB at bytes[n-1].

   If is_signed is 0/false, it's an error if v < 0; else (v >= 0) n bytes

   are filled and there's nothing special about bit 0x80 of the MSB.

   If is_signed is 1/true, bytes is filled with the 2's-complement

   representation of v's value.  Bit 0x80 of the MSB is the sign bit.

   Error returns (-1):

   + is_signed is 0 and v < 0.  TypeError is set in this case, and bytes

     isn't altered.

   + n isn't big enough to hold the full mathematical value of v.  For

     example, if is_signed is 0 and there are more digits in the v than

     fit in n; or if is_signed is 1, v < 0, and n is just 1 bit shy of

     being large enough to hold a sign bit.  OverflowError is set in this

     case, but bytes holds the least-signficant n bytes of the true value.

*/

PyAPI_FUNC(int) _PyLong_AsByteArray(PyLongObject* v,

	unsigned char* bytes, size_t n,

	int little_endian, int is_signed);

#ifdef __cplusplus

}

#endif

#endif /* !Py_LONGOBJECT_H */