diff options
Diffstat (limited to 'Include/longobject.h')
| -rw-r--r-- | Include/longobject.h | 50 |
1 files changed, 42 insertions, 8 deletions
diff --git a/Include/longobject.h b/Include/longobject.h index 6e4e1a4e9b2..c09565a1179 100644 --- a/Include/longobject.h +++ b/Include/longobject.h @@ -32,16 +32,37 @@ PyAPI_FUNC(PyObject *) PyLong_GetInfo(void); cleanup to keep the extra information. [CH] */ #define PyLong_AS_LONG(op) PyLong_AsLong(op) -/* For use by intobject.c only */ +/* 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 */ + +/* Used by Python/mystrtoul.c. */ +#ifndef Py_LIMITED_API PyAPI_DATA(unsigned char) _PyLong_DigitValue[256]; +#endif -/* _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); +/* _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 *); @@ -53,11 +74,15 @@ 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 *); +PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLongAndOverflow(PyObject *, int *); #endif /* HAVE_LONG_LONG */ PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int); +#ifndef Py_LIMITED_API PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, 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. @@ -74,6 +99,14 @@ PyAPI_FUNC(int) _PyLong_Sign(PyObject *v); */ 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 long with the same numeric value. If n is 0, the integer is 0. Else: @@ -124,6 +157,7 @@ PyAPI_FUNC(PyObject *) _PyLong_Format(PyObject *aa, int base); PyAPI_FUNC(PyObject *) _PyLong_FormatAdvanced(PyObject *obj, Py_UNICODE *format_spec, Py_ssize_t format_spec_len); +#endif /* Py_LIMITED_API */ /* These aren't really part of the long object, but they're handy. The functions are in Python/mystrtoul.c. |