#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) \
 PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LONG_SUBCLASS)
#define PyLong_CheckExact(op) (Py_TYPE(op) == &PyLong_Type)

PyAPI_FUNC(PyObject *) PyLong_FromLong(long);
PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);
PyAPI_FUNC(PyObject *) PyLong_FromSize_t(size_t);
PyAPI_FUNC(PyObject *) PyLong_FromSsize_t(Py_ssize_t);
PyAPI_FUNC(PyObject *) PyLong_FromDouble(double);
PyAPI_FUNC(long) PyLong_AsLong(PyObject *);
PyAPI_FUNC(long) PyLong_AsLongAndOverflow(PyObject *, int *);
PyAPI_FUNC(Py_ssize_t) PyLong_AsSsize_t(PyObject *);
PyAPI_FUNC(size_t) PyLong_AsSize_t(PyObject *);
PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLong(PyObject *);
PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLongMask(PyObject *);
#ifndef Py_LIMITED_API
PyAPI_FUNC(int) _PyLong_AsInt(PyObject *);
#endif
PyAPI_FUNC(PyObject *) PyLong_GetInfo(void);

/* It may be useful in the future. I've added it in the PyInt -> PyLong
 cleanup to keep the extra information. [CH] */
#define PyLong_AS_LONG(op) PyLong_AsLong(op)

/* Issue #1983: pid_t can be longer than a C long on some systems */
#if !defined(SIZEOF_PID_T) || SIZEOF_PID_T == SIZEOF_INT
#define _Py_PARSE_PID "i"
#define PyLong_FromPid PyLong_FromLong
#define PyLong_AsPid PyLong_AsLong
#elif SIZEOF_PID_T == SIZEOF_LONG
#define _Py_PARSE_PID "l"
#define PyLong_FromPid PyLong_FromLong
#define PyLong_AsPid PyLong_AsLong
#elif defined(SIZEOF_LONG_LONG) && SIZEOF_PID_T == SIZEOF_LONG_LONG
#define _Py_PARSE_PID "L"
#define PyLong_FromPid PyLong_FromLongLong
#define PyLong_AsPid PyLong_AsLongLong
#else
#error "sizeof(pid_t) is neither sizeof(int), sizeof(long) or sizeof(long long)"
#endif /* SIZEOF_PID_T */

#if SIZEOF_VOID_P == SIZEOF_INT
# define _Py_PARSE_INTPTR "i"
# define _Py_PARSE_UINTPTR "I"
#elif SIZEOF_VOID_P == SIZEOF_LONG
# define _Py_PARSE_INTPTR "l"
# define _Py_PARSE_UINTPTR "k"
#elif defined(SIZEOF_LONG_LONG) && SIZEOF_VOID_P == SIZEOF_LONG_LONG
# define _Py_PARSE_INTPTR "L"
# define _Py_PARSE_UINTPTR "K"
#else
# error "void* different in size from int, long and long long"
#endif /* SIZEOF_VOID_P */

#ifndef Py_LIMITED_API
PyAPI_FUNC(int) _PyLong_UnsignedShort_Converter(PyObject *, void *);
PyAPI_FUNC(int) _PyLong_UnsignedInt_Converter(PyObject *, void *);
PyAPI_FUNC(int) _PyLong_UnsignedLong_Converter(PyObject *, void *);
PyAPI_FUNC(int) _PyLong_UnsignedLongLong_Converter(PyObject *, void *);
PyAPI_FUNC(int) _PyLong_Size_t_Converter(PyObject *, void *);
#endif

/* Used by Python/mystrtoul.c, _PyBytes_FromHex(),
 _PyBytes_DecodeEscapeRecode(), etc. */
#ifndef Py_LIMITED_API
PyAPI_DATA(unsigned char) _PyLong_DigitValue[256];
#endif

/* _PyLong_Frexp returns a double x and an exponent e such that the
 true value is approximately equal to x * 2**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); otherwise, 0.5 <= abs(x) < 1.0. On overflow, which is
 possible if the number of bits doesn't fit into a Py_ssize_t, sets
 OverflowError and returns -1.0 for x, 0 for e. */
#ifndef Py_LIMITED_API
PyAPI_FUNC(double) _PyLong_Frexp(PyLongObject *a, Py_ssize_t *e);
#endif

PyAPI_FUNC(double) PyLong_AsDouble(PyObject *);
PyAPI_FUNC(PyObject *) PyLong_FromVoidPtr(void *);
PyAPI_FUNC(void *) PyLong_AsVoidPtr(PyObject *);

PyAPI_FUNC(PyObject *) PyLong_FromLongLong(long long);
PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLongLong(unsigned long long);
PyAPI_FUNC(long long) PyLong_AsLongLong(PyObject *);
PyAPI_FUNC(unsigned long long) PyLong_AsUnsignedLongLong(PyObject *);
PyAPI_FUNC(unsigned long long) PyLong_AsUnsignedLongLongMask(PyObject *);
PyAPI_FUNC(long long) PyLong_AsLongLongAndOverflow(PyObject *, int *);

PyAPI_FUNC(PyObject *) PyLong_FromString(const char *, char **, int);
#ifndef Py_LIMITED_API
Py_DEPRECATED(3.3)
PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
PyAPI_FUNC(PyObject *) PyLong_FromUnicodeObject(PyObject *u, int base);
PyAPI_FUNC(PyObject *) _PyLong_FromBytes(const char *, Py_ssize_t, int);
#endif

#ifndef Py_LIMITED_API
/* _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_DivmodNear. Given integers a and b, compute the nearest
 integer q to the exact quotient a / b, rounding to the nearest even integer
 in the case of a tie. Return (q, r), where r = a - q*b. The remainder r
 will satisfy abs(r) <= abs(b)/2, with equality possible only if q is
 even.
*/
PyAPI_FUNC(PyObject *) _PyLong_DivmodNear(PyObject *, PyObject *);

/* _PyLong_FromByteArray: View the n unsigned bytes as a binary integer in
 base 256, and return a Python int 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 int.
*/
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-significant 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);

/* _PyLong_FromNbInt: Convert the given object to a PyLongObject
 using the nb_int slot, if available. Raise TypeError if either the
 nb_int slot is not available or the result of the call to nb_int
 returns something not of type int.
*/
PyAPI_FUNC(PyObject *) _PyLong_FromNbInt(PyObject *);

/* Convert the given object to a PyLongObject using the nb_index or
 nb_int slots, if available (the latter is deprecated).
 Raise TypeError if either nb_index and nb_int slots are not
 available or the result of the call to nb_index or nb_int
 returns something not of type int.
 Should be replaced with PyNumber_Index after the end of the
 deprecation period.
*/
PyAPI_FUNC(PyObject *) _PyLong_FromNbIndexOrNbInt(PyObject *);

/* _PyLong_Format: Convert the long to a string object with given base,
 appending a base prefix of 0[box] if base is 2, 8 or 16. */
PyAPI_FUNC(PyObject *) _PyLong_Format(PyObject *obj, int base);

PyAPI_FUNC(int) _PyLong_FormatWriter(
 _PyUnicodeWriter *writer,
 PyObject *obj,
 int base,
 int alternate);

PyAPI_FUNC(char*) _PyLong_FormatBytesWriter(
 _PyBytesWriter *writer,
 char *str,
 PyObject *obj,
 int base,
 int alternate);

/* Format the object based on the format_spec, as defined in PEP 3101
 (Advanced String Formatting). */
PyAPI_FUNC(int) _PyLong_FormatAdvancedWriter(
 _PyUnicodeWriter *writer,
 PyObject *obj,
 PyObject *format_spec,
 Py_ssize_t start,
 Py_ssize_t end);
#endif /* Py_LIMITED_API */

/* These aren't really part of the int object, but they're handy. The
 functions are in Python/mystrtoul.c.
 */
PyAPI_FUNC(unsigned long) PyOS_strtoul(const char *, char **, int);
PyAPI_FUNC(long) PyOS_strtol(const char *, char **, int);

#ifndef Py_LIMITED_API
/* For use by the gcd function in mathmodule.c */
PyAPI_FUNC(PyObject *) _PyLong_GCD(PyObject *, PyObject *);
#endif /* !Py_LIMITED_API */

#ifndef Py_LIMITED_API
PyAPI_DATA(PyObject *) _PyLong_Zero;
PyAPI_DATA(PyObject *) _PyLong_One;

PyAPI_FUNC(PyObject *) _PyLong_Rshift(PyObject *, size_t);
PyAPI_FUNC(PyObject *) _PyLong_Lshift(PyObject *, size_t);
#endif

#ifdef __cplusplus
}
#endif
#endif /* !Py_LONGOBJECT_H */