commit 92f8b480bab408be09bc1631cf2e0e5a4641b731
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Jun 23 06:41:24 2020 -0700
committer GitHub <noreply@github.com> Tue Jun 23 06:41:24 2020 -0700
tree 66a17495e9b3569dd412955094e367048027caa5
parent cd696201ff24e6fdd53c413acf4485e09835b89f

bpo-41085: Fix array.array.index() on 64-bit Windows (GH-21071)


Fix integer overflow in the :meth:`array.array.index` method on 64-bit Windows
for index larger than ``2**31``.
(cherry picked from commit 1d3dad5f96ed445b958ec53dfa0d46812f2162d9)

Co-authored-by: WildCard65 <WildCard65@users.noreply.github.com>

Modules/arraymodule.c

diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 732703e..724c503 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1141,7 +1141,7 @@
         cmp = PyObject_RichCompareBool(selfi, v, Py_EQ);
         Py_DECREF(selfi);
         if (cmp > 0) {
-            return PyLong_FromLong((long)i);
+            return PyLong_FromSsize_t(i);
         }
         else if (cmp < 0)
             return NULL;