deimos.python.longobject

Mirror longobject.h

Long (arbitrary precision) integer object interface

Members

Functions

PyLong_AsDouble
double PyLong_AsDouble(PyObject*)

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PyLong_AsLong
C_long PyLong_AsLong(PyObject*)

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PyLong_AsLongAndOverflow
C_long PyLong_AsLongAndOverflow(PyObject*, int*)

Availability: >= 2.7

PyLong_AsLongLong
C_longlong PyLong_AsLongLong(PyObject*)

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PyLong_AsLongLongAndOverflow
C_longlong PyLong_AsLongLongAndOverflow(PyObject*, int*)

Availability: >= 2.7

PyLong_AsSize_t
size_t PyLong_AsSize_t(PyObject*)

Availability: 3.*

PyLong_AsSsize_t
Py_ssize_t PyLong_AsSsize_t(PyObject*)

Availability: >= 2.6

PyLong_AsUnsignedLong
C_ulong PyLong_AsUnsignedLong(PyObject*)

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PyLong_AsUnsignedLongLong
C_ulonglong PyLong_AsUnsignedLongLong(PyObject*)

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PyLong_AsUnsignedLongLongMask
C_ulonglong PyLong_AsUnsignedLongLongMask(PyObject*)

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PyLong_AsUnsignedLongMask
C_ulong PyLong_AsUnsignedLongMask(PyObject*)

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PyLong_AsVoidPtr
void* PyLong_AsVoidPtr(PyObject*)

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PyLong_Check
int PyLong_Check(PyObject* op)

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PyLong_CheckExact
int PyLong_CheckExact(PyObject* op)

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PyLong_FromDouble
PyObject* PyLong_FromDouble(double)

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PyLong_FromLong
PyObject* PyLong_FromLong(C_long)

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PyLong_FromLongLong
PyObject* PyLong_FromLongLong(C_longlong)

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PyLong_FromSize_t
PyObject* PyLong_FromSize_t(size_t)

Availability: >= 2.6

PyLong_FromSsize_t
PyObject* PyLong_FromSsize_t(Py_ssize_t)

Availability: >= 2.6

PyLong_FromString
PyObject* PyLong_FromString(char* str, char** pend, int base)

Convert string to python long. Roughly, parses format

PyLong_FromUnicode
PyObject* PyLong_FromUnicode(Py_UNICODE*, int, int)

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PyLong_FromUnsignedLong
PyObject* PyLong_FromUnsignedLong(C_ulong)

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PyLong_FromUnsignedLongLong
PyObject* PyLong_FromUnsignedLongLong(C_ulonglong)

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PyLong_FromVoidPtr
PyObject* PyLong_FromVoidPtr(void*)

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PyLong_FromVoidPtr
PyObject* PyLong_FromVoidPtr(void*)

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PyLong_GetInfo
PyObject* PyLong_GetInfo()

Availability: >= 2.7

PyOS_strtol
C_long PyOS_strtol(char*, char**, int)

Availability: 3.*

PyOS_strtoul
C_ulong PyOS_strtoul(char*, char**, int)

Availability: 3.*

_PyLong_AsByteArray
int _PyLong_AsByteArray(PyLongObject* v, ubyte* bytes, size_t n, int little_endian, int is_signed)

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.

_PyLong_DivmodNear
PyObject* _PyLong_DivmodNear(PyObject*, PyObject*)

Availability: 3.*

_PyLong_Format
PyObject* _PyLong_Format(PyObject* aa, int base)

Availability: 3.*

_PyLong_Format
PyObject* _PyLong_Format(PyObject* aa, int base, int addL, int newstyle)
_PyLong_FormatAdvanced
PyObject* _PyLong_FormatAdvanced(PyObject* obj, Py_UNICODE* format_spec, Py_ssize_t format_spec_len)

Availability: 3.*

_PyLong_FormatAdvanced
PyObject* _PyLong_FormatAdvanced(PyObject* obj, char* format_spec, Py_ssize_t format_spec_len)

Format the object based on the format_spec, as defined in PEP 3101 (Advanced String Formatting).

_PyLong_Frexp
double _PyLong_Frexp(PyLongObject* a, Py_ssize_t* e)

_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. */ /// Availability: >= 2.

_PyLong_FromByteArray
PyObject* _PyLong_FromByteArray(const(ubyte)* bytes, size_t n, int little_endian, int is_signed)

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.

_PyLong_NumBits
size_t _PyLong_NumBits(PyObject* v)

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.

_PyLong_Sign
int _PyLong_Sign(PyObject* v)

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.

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