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Checking in the code for PEP 357.

Browse source 
This was mostly written by Travis Oliphant.
I've inspected it all; Neal Norwitz and MvL have also looked at it
(in an earlier incarnation).
This commit is contained in:
Guido van Rossum 2006-03-07 18:50:55 +00:00
parent 9d7855076a
commit 38fff8c4e4
19 changed files with 269 additions and 150 deletions
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25
Modules/mmapmodule.c
View file

@ -815,6 +815,8 @@ static PyTypeObject mmap_object_type = {
};
#define HASINDEX(o) PyType_HasFeature((o)->ob_type, Py_TPFLAGS_HAVE_INDEX)
/* extract the map size from the given PyObject
Returns -1 on error, with an appropriate Python exception raised. On
@ -822,26 +824,15 @@ static PyTypeObject mmap_object_type = {
static Py_ssize_t
_GetMapSize(PyObject *o)
{
if (PyInt_Check(o)) {
long i = PyInt_AsLong(o);
if (PyErr_Occurred())
PyNumberMethods *nb = o->ob_type->tp_as_number;
if (nb != NULL && HASINDEX(o) && nb->nb_index != NULL) {
Py_ssize_t i = nb->nb_index(o);
if (i==-1 && PyErr_Occurred())
return -1;
if (i < 0)
goto onnegoverflow;
return i;
}
else if (PyLong_Check(o)) {
Py_ssize_t i = PyInt_AsSsize_t(o);
if (PyErr_Occurred()) {
/* yes negative overflow is mistaken for positive overflow
but not worth the trouble to check sign of 'i' */
if (PyErr_ExceptionMatches(PyExc_OverflowError))
goto onposoverflow;
else
return -1;
}
if (i < 0)
goto onnegoverflow;
if (i==PY_SSIZE_T_MAX)
goto onposoverflow;
return i;
}
else {