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Backport fix to SF bug #820397: __nonzero__() returns 1/0

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This commit is contained in:
Raymond Hettinger
2003-10-12 23:41:21 +00:00
parent f28980ef37
commit 5307bc50ea
1 changed files with 15 additions and 1 deletions
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16
Objects/typeobject.c
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@@ -3311,6 +3311,20 @@ wrap_inquiry(PyObject *self, PyObject *args, void *wrapped)
return PyInt_FromLong((long)res);
}
static PyObject *
wrap_inquirypred(PyObject *self, PyObject *args, void *wrapped)
{
inquiry func = (inquiry)wrapped;
int res;
if (!PyArg_ParseTuple(args, ""))
return NULL;
res = (*func)(self);
if (res == -1 && PyErr_Occurred())
return NULL;
return PyBool_FromLong((long)res);
}
static PyObject *
wrap_binaryfunc(PyObject *self, PyObject *args, void *wrapped)
{
@@ -4900,7 +4914,7 @@ static slotdef slotdefs[] = {
UNSLOT("__pos__", nb_positive, slot_nb_positive, wrap_unaryfunc, "+x"),
UNSLOT("__abs__", nb_absolute, slot_nb_absolute, wrap_unaryfunc,
"abs(x)"),
UNSLOT("__nonzero__", nb_nonzero, slot_nb_nonzero, wrap_inquiry,
UNSLOT("__nonzero__", nb_nonzero, slot_nb_nonzero, wrap_inquirypred,
"x != 0"),
UNSLOT("__invert__", nb_invert, slot_nb_invert, wrap_unaryfunc, "~x"),
BINSLOT("__lshift__", nb_lshift, slot_nb_lshift, "<<"),