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-rw-r--r--Objects/stringobject.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index 3dfe115..f3063cf 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -394,7 +394,7 @@ string_compare(a, b)
int min_len = (len_a < len_b) ? len_a : len_b;
int cmp;
if (min_len > 0) {
- cmp = *a->ob_sval - *b->ob_sval;
+ cmp = Py_CHARMASK(*a->ob_sval) - Py_CHARMASK(*b->ob_sval);
if (cmp == 0)
cmp = memcmp(a->ob_sval, b->ob_sval, min_len);
if (cmp != 0)