annotate DEPENDENCIES/mingw32/Python27/include/longobject.h @ 118:770eb830ec19 emscripten

Typo fix
author Chris Cannam
date Wed, 18 May 2016 16:14:08 +0100
parents 2a2c65a20a8b
children
rev   line source
Chris@87 1 #ifndef Py_LONGOBJECT_H
Chris@87 2 #define Py_LONGOBJECT_H
Chris@87 3 #ifdef __cplusplus
Chris@87 4 extern "C" {
Chris@87 5 #endif
Chris@87 6
Chris@87 7
Chris@87 8 /* Long (arbitrary precision) integer object interface */
Chris@87 9
Chris@87 10 typedef struct _longobject PyLongObject; /* Revealed in longintrepr.h */
Chris@87 11
Chris@87 12 PyAPI_DATA(PyTypeObject) PyLong_Type;
Chris@87 13
Chris@87 14 #define PyLong_Check(op) \
Chris@87 15 PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LONG_SUBCLASS)
Chris@87 16 #define PyLong_CheckExact(op) (Py_TYPE(op) == &PyLong_Type)
Chris@87 17
Chris@87 18 PyAPI_FUNC(PyObject *) PyLong_FromLong(long);
Chris@87 19 PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);
Chris@87 20 PyAPI_FUNC(PyObject *) PyLong_FromDouble(double);
Chris@87 21 PyAPI_FUNC(PyObject *) PyLong_FromSize_t(size_t);
Chris@87 22 PyAPI_FUNC(PyObject *) PyLong_FromSsize_t(Py_ssize_t);
Chris@87 23 PyAPI_FUNC(long) PyLong_AsLong(PyObject *);
Chris@87 24 PyAPI_FUNC(long) PyLong_AsLongAndOverflow(PyObject *, int *);
Chris@87 25 PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLong(PyObject *);
Chris@87 26 PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLongMask(PyObject *);
Chris@87 27 PyAPI_FUNC(Py_ssize_t) PyLong_AsSsize_t(PyObject *);
Chris@87 28 PyAPI_FUNC(int) _PyLong_AsInt(PyObject *);
Chris@87 29 PyAPI_FUNC(PyObject *) PyLong_GetInfo(void);
Chris@87 30
Chris@87 31 /* For use by intobject.c only */
Chris@87 32 #define _PyLong_AsSsize_t PyLong_AsSsize_t
Chris@87 33 #define _PyLong_FromSize_t PyLong_FromSize_t
Chris@87 34 #define _PyLong_FromSsize_t PyLong_FromSsize_t
Chris@87 35 PyAPI_DATA(int) _PyLong_DigitValue[256];
Chris@87 36
Chris@87 37 /* _PyLong_Frexp returns a double x and an exponent e such that the
Chris@87 38 true value is approximately equal to x * 2**e. e is >= 0. x is
Chris@87 39 0.0 if and only if the input is 0 (in which case, e and x are both
Chris@87 40 zeroes); otherwise, 0.5 <= abs(x) < 1.0. On overflow, which is
Chris@87 41 possible if the number of bits doesn't fit into a Py_ssize_t, sets
Chris@87 42 OverflowError and returns -1.0 for x, 0 for e. */
Chris@87 43 PyAPI_FUNC(double) _PyLong_Frexp(PyLongObject *a, Py_ssize_t *e);
Chris@87 44
Chris@87 45 PyAPI_FUNC(double) PyLong_AsDouble(PyObject *);
Chris@87 46 PyAPI_FUNC(PyObject *) PyLong_FromVoidPtr(void *);
Chris@87 47 PyAPI_FUNC(void *) PyLong_AsVoidPtr(PyObject *);
Chris@87 48
Chris@87 49 #ifdef HAVE_LONG_LONG
Chris@87 50 PyAPI_FUNC(PyObject *) PyLong_FromLongLong(PY_LONG_LONG);
Chris@87 51 PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLongLong(unsigned PY_LONG_LONG);
Chris@87 52 PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLong(PyObject *);
Chris@87 53 PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLong(PyObject *);
Chris@87 54 PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLongMask(PyObject *);
Chris@87 55 PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLongAndOverflow(PyObject *, int *);
Chris@87 56 #endif /* HAVE_LONG_LONG */
Chris@87 57
Chris@87 58 PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);
Chris@87 59 #ifdef Py_USING_UNICODE
Chris@87 60 PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
Chris@87 61 #endif
Chris@87 62
Chris@87 63 /* _PyLong_Sign. Return 0 if v is 0, -1 if v < 0, +1 if v > 0.
Chris@87 64 v must not be NULL, and must be a normalized long.
Chris@87 65 There are no error cases.
Chris@87 66 */
Chris@87 67 PyAPI_FUNC(int) _PyLong_Sign(PyObject *v);
Chris@87 68
Chris@87 69
Chris@87 70 /* _PyLong_NumBits. Return the number of bits needed to represent the
Chris@87 71 absolute value of a long. For example, this returns 1 for 1 and -1, 2
Chris@87 72 for 2 and -2, and 2 for 3 and -3. It returns 0 for 0.
Chris@87 73 v must not be NULL, and must be a normalized long.
Chris@87 74 (size_t)-1 is returned and OverflowError set if the true result doesn't
Chris@87 75 fit in a size_t.
Chris@87 76 */
Chris@87 77 PyAPI_FUNC(size_t) _PyLong_NumBits(PyObject *v);
Chris@87 78
Chris@87 79 /* _PyLong_FromByteArray: View the n unsigned bytes as a binary integer in
Chris@87 80 base 256, and return a Python long with the same numeric value.
Chris@87 81 If n is 0, the integer is 0. Else:
Chris@87 82 If little_endian is 1/true, bytes[n-1] is the MSB and bytes[0] the LSB;
Chris@87 83 else (little_endian is 0/false) bytes[0] is the MSB and bytes[n-1] the
Chris@87 84 LSB.
Chris@87 85 If is_signed is 0/false, view the bytes as a non-negative integer.
Chris@87 86 If is_signed is 1/true, view the bytes as a 2's-complement integer,
Chris@87 87 non-negative if bit 0x80 of the MSB is clear, negative if set.
Chris@87 88 Error returns:
Chris@87 89 + Return NULL with the appropriate exception set if there's not
Chris@87 90 enough memory to create the Python long.
Chris@87 91 */
Chris@87 92 PyAPI_FUNC(PyObject *) _PyLong_FromByteArray(
Chris@87 93 const unsigned char* bytes, size_t n,
Chris@87 94 int little_endian, int is_signed);
Chris@87 95
Chris@87 96 /* _PyLong_AsByteArray: Convert the least-significant 8*n bits of long
Chris@87 97 v to a base-256 integer, stored in array bytes. Normally return 0,
Chris@87 98 return -1 on error.
Chris@87 99 If little_endian is 1/true, store the MSB at bytes[n-1] and the LSB at
Chris@87 100 bytes[0]; else (little_endian is 0/false) store the MSB at bytes[0] and
Chris@87 101 the LSB at bytes[n-1].
Chris@87 102 If is_signed is 0/false, it's an error if v < 0; else (v >= 0) n bytes
Chris@87 103 are filled and there's nothing special about bit 0x80 of the MSB.
Chris@87 104 If is_signed is 1/true, bytes is filled with the 2's-complement
Chris@87 105 representation of v's value. Bit 0x80 of the MSB is the sign bit.
Chris@87 106 Error returns (-1):
Chris@87 107 + is_signed is 0 and v < 0. TypeError is set in this case, and bytes
Chris@87 108 isn't altered.
Chris@87 109 + n isn't big enough to hold the full mathematical value of v. For
Chris@87 110 example, if is_signed is 0 and there are more digits in the v than
Chris@87 111 fit in n; or if is_signed is 1, v < 0, and n is just 1 bit shy of
Chris@87 112 being large enough to hold a sign bit. OverflowError is set in this
Chris@87 113 case, but bytes holds the least-signficant n bytes of the true value.
Chris@87 114 */
Chris@87 115 PyAPI_FUNC(int) _PyLong_AsByteArray(PyLongObject* v,
Chris@87 116 unsigned char* bytes, size_t n,
Chris@87 117 int little_endian, int is_signed);
Chris@87 118
Chris@87 119 /* _PyLong_Format: Convert the long to a string object with given base,
Chris@87 120 appending a base prefix of 0[box] if base is 2, 8 or 16.
Chris@87 121 Add a trailing "L" if addL is non-zero.
Chris@87 122 If newstyle is zero, then use the pre-2.6 behavior of octal having
Chris@87 123 a leading "0", instead of the prefix "0o" */
Chris@87 124 PyAPI_FUNC(PyObject *) _PyLong_Format(PyObject *aa, int base, int addL, int newstyle);
Chris@87 125
Chris@87 126 /* Format the object based on the format_spec, as defined in PEP 3101
Chris@87 127 (Advanced String Formatting). */
Chris@87 128 PyAPI_FUNC(PyObject *) _PyLong_FormatAdvanced(PyObject *obj,
Chris@87 129 char *format_spec,
Chris@87 130 Py_ssize_t format_spec_len);
Chris@87 131
Chris@87 132 #ifdef __cplusplus
Chris@87 133 }
Chris@87 134 #endif
Chris@87 135 #endif /* !Py_LONGOBJECT_H */