| 1 | #ifndef Py_LONGOBJECT_H
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| 2 | #define Py_LONGOBJECT_H
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| 3 | #ifdef __cplusplus
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| 4 | extern "C" {
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| 5 | #endif
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| 6 |
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| 7 |
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| 8 | /* Long (arbitrary precision) integer object interface */
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| 9 |
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| 10 | typedef struct _longobject PyLongObject; /* Revealed in longintrepr.h */
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| 11 |
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| 12 | PyAPI_DATA(PyTypeObject) PyLong_Type;
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| 13 |
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| 14 | #define PyLong_Check(op) PyObject_TypeCheck(op, &PyLong_Type)
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| 15 | #define PyLong_CheckExact(op) ((op)->ob_type == &PyLong_Type)
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| 16 |
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| 17 | PyAPI_FUNC(PyObject *) PyLong_FromLong(long);
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| 18 | PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);
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| 19 | PyAPI_FUNC(PyObject *) PyLong_FromDouble(double);
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| 20 | PyAPI_FUNC(long) PyLong_AsLong(PyObject *);
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| 21 | PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLong(PyObject *);
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| 22 | PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLongMask(PyObject *);
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| 23 |
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| 24 | /* For use by intobject.c only */
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| 25 | PyAPI_FUNC(Py_ssize_t) _PyLong_AsSsize_t(PyObject *);
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| 26 | PyAPI_FUNC(PyObject *) _PyLong_FromSize_t(size_t);
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| 27 | PyAPI_FUNC(PyObject *) _PyLong_FromSsize_t(Py_ssize_t);
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| 28 | PyAPI_DATA(int) _PyLong_DigitValue[256];
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| 29 |
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| 30 | /* _PyLong_AsScaledDouble returns a double x and an exponent e such that
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| 31 | the true value is approximately equal to x * 2**(SHIFT*e). e is >= 0.
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| 32 | x is 0.0 if and only if the input is 0 (in which case, e and x are both
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| 33 | zeroes). Overflow is impossible. Note that the exponent returned must
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| 34 | be multiplied by SHIFT! There may not be enough room in an int to store
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| 35 | e*SHIFT directly. */
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| 36 | PyAPI_FUNC(double) _PyLong_AsScaledDouble(PyObject *vv, int *e);
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| 37 |
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| 38 | PyAPI_FUNC(double) PyLong_AsDouble(PyObject *);
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| 39 | PyAPI_FUNC(PyObject *) PyLong_FromVoidPtr(void *);
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| 40 | PyAPI_FUNC(void *) PyLong_AsVoidPtr(PyObject *);
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| 41 |
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| 42 | #ifdef HAVE_LONG_LONG
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| 43 | PyAPI_FUNC(PyObject *) PyLong_FromLongLong(PY_LONG_LONG);
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| 44 | PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLongLong(unsigned PY_LONG_LONG);
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| 45 | PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLong(PyObject *);
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| 46 | PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLong(PyObject *);
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| 47 | PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLongMask(PyObject *);
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| 48 | #endif /* HAVE_LONG_LONG */
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| 49 |
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| 50 | PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);
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| 51 | #ifdef Py_USING_UNICODE
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| 52 | PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
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| 53 | #endif
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| 54 |
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| 55 | /* _PyLong_Sign. Return 0 if v is 0, -1 if v < 0, +1 if v > 0.
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| 56 | v must not be NULL, and must be a normalized long.
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| 57 | There are no error cases.
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| 58 | */
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| 59 | PyAPI_FUNC(int) _PyLong_Sign(PyObject *v);
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| 60 |
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| 61 |
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| 62 | /* _PyLong_NumBits. Return the number of bits needed to represent the
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| 63 | absolute value of a long. For example, this returns 1 for 1 and -1, 2
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| 64 | for 2 and -2, and 2 for 3 and -3. It returns 0 for 0.
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| 65 | v must not be NULL, and must be a normalized long.
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| 66 | (size_t)-1 is returned and OverflowError set if the true result doesn't
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| 67 | fit in a size_t.
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| 68 | */
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| 69 | PyAPI_FUNC(size_t) _PyLong_NumBits(PyObject *v);
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| 70 |
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| 71 | /* _PyLong_FromByteArray: View the n unsigned bytes as a binary integer in
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