From 68f6adca6dbcf25c5cb3c2c411eaf0f9f6f1e793 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Tue, 29 Oct 2013 03:50:21 +0100
Subject: Issue #18408: Fix _ctypes_alloc_format_string(), raise MemoryError on
 memory allocation failure

---
 Modules/_ctypes/_ctypes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index 37da94b..daba2ba 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -278,8 +278,10 @@ _ctypes_alloc_format_string(const char *prefix, const char *suffix)
     if (prefix)
         len += strlen(prefix);
     result = PyMem_Malloc(len + 1);
-    if (result == NULL)
+    if (result == NULL) {
+        PyErr_NoMemory();
         return NULL;
+    }
     if (prefix)
         strcpy(result, prefix);
     else
-- 
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