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-rw-r--r--string/bits/string2.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/string/bits/string2.h b/string/bits/string2.h
index 0c28b3e122..3de175d0a8 100644
--- a/string/bits/string2.h
+++ b/string/bits/string2.h
@@ -687,12 +687,13 @@ __stpcpy_small (char *__dest,
/* Compare N characters of S1 and S2. */
#ifndef _HAVE_STRING_ARCH_strncmp
-# define strncmp(s1, s2, n) \
- (__extension__ (__builtin_constant_p (s1) && strlen (s1) < ((size_t) (n)) \
- ? strcmp (s1, s2) \
- : (__builtin_constant_p (s2) && strlen (s2) < ((size_t) (n))\
- ? strcmp (s1, s2) \
- : strncmp (s1, s2, n))))
+# define strncmp(s1, s2, n) \
+ (__extension__ (__builtin_constant_p (n) \
+ && ((__builtin_constant_p (s1) \
+ && strlen (s1) < ((size_t) (n))) \
+ || (__builtin_constant_p (s2) \
+ && strlen (s2) < ((size_t) (n)))) \
+ ? strcmp (s1, s2) : strncmp (s1, s2, n)))
#endif