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authorDong-hee Na <donghee.na@python.org>2022-02-10 10:10:07 (GMT)
committerGitHub <noreply@github.com>2022-02-10 10:10:07 (GMT)
commitdb052851a70fd95d047c6263fc16a75e4d47b3ed (patch)
tree3b48d175df567b2f22d5747c017067f7a62bba18
parentdee020a6f5bf29f95bec6294da9bcd577114f592 (diff)
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bpo-46323: Allow alloca(0) for python callback function of ctypes (GH-31249)
-rw-r--r--Modules/_ctypes/callbacks.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/Modules/_ctypes/callbacks.c b/Modules/_ctypes/callbacks.c
index 591b944..6037f5f 100644
--- a/Modules/_ctypes/callbacks.c
+++ b/Modules/_ctypes/callbacks.c
@@ -165,11 +165,7 @@ static void _CallPythonObject(void *mem,
assert(PyTuple_Check(converters));
nargs = PyTuple_GET_SIZE(converters);
assert(nargs <= CTYPES_MAX_ARGCOUNT);
- PyObject **args = NULL;
- if (nargs > 0) {
- args = alloca(nargs * sizeof(PyObject *));
- }
-
+ PyObject **args = alloca(nargs * sizeof(PyObject *));
PyObject **cnvs = PySequence_Fast_ITEMS(converters);
for (i = 0; i < nargs; i++) {
PyObject *cnv = cnvs[i]; // borrowed ref