diff options
Diffstat (limited to 'Objects/longobject.c')
| -rw-r--r-- | Objects/longobject.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Objects/longobject.c b/Objects/longobject.c index e02bce4..663befc 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -260,6 +260,34 @@ PyLong_AsUnsignedLong(PyObject *vv) return x; } +/* Get a C unsigned long int from a long int object, ignoring the high bits. + Returns -1 and sets an error condition if an error occurs. */ + +unsigned long +PyLong_AsUnsignedLongMask(PyObject *vv) +{ + register PyLongObject *v; + unsigned long x; + int i, sign; + + if (vv == NULL || !PyLong_Check(vv)) { + PyErr_BadInternalCall(); + return (unsigned long) -1; + } + v = (PyLongObject *)vv; + i = v->ob_size; + sign = 1; + x = 0; + if (i < 0) { + sign = -1; + i = -i; + } + while (--i >= 0) { + x = (x << SHIFT) + v->ob_digit[i]; + } + return x * sign; +} + int _PyLong_Sign(PyObject *vv) { @@ -779,6 +807,33 @@ PyLong_AsUnsignedLongLong(PyObject *vv) return bytes; } +/* Get a C unsigned long int from a long int object, ignoring the high bits. + Returns -1 and sets an error condition if an error occurs. */ + +unsigned PY_LONG_LONG +PyLong_AsUnsignedLongLongMask(PyObject *vv) +{ + register PyLongObject *v; + unsigned PY_LONG_LONG x; + int i, sign; + + if (vv == NULL || !PyLong_Check(vv)) { + PyErr_BadInternalCall(); + return (unsigned long) -1; + } + v = (PyLongObject *)vv; + i = v->ob_size; + sign = 1; + x = 0; + if (i < 0) { + sign = -1; + i = -i; + } + while (--i >= 0) { + x = (x << SHIFT) + v->ob_digit[i]; + } + return x * sign; +} #undef IS_LITTLE_ENDIAN #endif /* HAVE_LONG_LONG */ |