#include <string.h>
-#include <stdlib.h>
#include <stdint.h>
#include <limits.h>
{
const unsigned char *s = src;
c = (unsigned char)c;
+#ifdef __GNUC__
for (; ((uintptr_t)s & ALIGN) && n && *s != c; s++, n--);
if (n && *s != c) {
- const size_t *w;
+ typedef size_t __attribute__((__may_alias__)) word;
+ const word *w;
size_t k = ONES * c;
for (w = (const void *)s; n>=SS && !HASZERO(*w^k); w++, n-=SS);
- for (s = (const void *)w; n && *s != c; s++, n--);
+ s = (const void *)w;
}
+#endif
+ for (; n && *s != c; s++, n--);
return n ? (void *)s : 0;
}