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-rw-r--r--src/string/stpncpy.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/string/stpncpy.c b/src/string/stpncpy.c
index d6d92ffc..f57fa6b7 100644
--- a/src/string/stpncpy.c
+++ b/src/string/stpncpy.c
@@ -9,9 +9,10 @@
char *__stpncpy(char *restrict d, const char *restrict s, size_t n)
{
- size_t *wd;
- const size_t *ws;
-
+#ifdef __GNUC__
+ typedef size_t __attribute__((__may_alias__)) word;
+ word *wd;
+ const word *ws;
if (((uintptr_t)s & ALIGN) == ((uintptr_t)d & ALIGN)) {
for (; ((uintptr_t)s & ALIGN) && n && (*d=*s); n--, s++, d++);
if (!n || !*s) goto tail;
@@ -20,6 +21,7 @@ char *__stpncpy(char *restrict d, const char *restrict s, size_t n)
n-=sizeof(size_t), ws++, wd++) *wd = *ws;
d=(void *)wd; s=(const void *)ws;
}
+#endif
for (; n && (*d=*s); n--, s++, d++);
tail:
memset(d, 0, n);