#define HIGHS (ONES * (UCHAR_MAX/2+1))
#define HASZERO(x) ((x)-ONES & ~(x) & HIGHS)
-void *memccpy(void *dest, const void *src, int c, size_t n)
+void *memccpy(void *restrict dest, const void *restrict src, int c, size_t n)
{
unsigned char *d = dest;
const unsigned char *s = src;