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-rw-r--r--Objects/listobject.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Objects/listobject.c b/Objects/listobject.c
index 2fb67b9..8aca28d 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -560,7 +560,7 @@ listappend(self, args)
/* CMPERROR is returned by our comparison function when an error
occurred. This is the largest negative integer (0x80000000 on a
32-bit system). */
-#define CMPERROR (1 << (8*sizeof(int) - 1))
+#define CMPERROR ( (int) ((unsigned int)1 << (8*sizeof(int) - 1)) )
/* Comparison function. Takes care of calling a user-supplied
comparison function (any callable Python object). Calls the