kolibrios/programs/develop/libraries/kolibri-libc/source/string/memccpy.c

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#include <string.h>
void *memccpy(void *restrict dest, const void *restrict src, int c, size_t n)
{
unsigned char *d = dest;
const unsigned char *s = src;
c = (unsigned char)c;
for (; n && (*d=*s)!=c; n--, s++, d++);
tail:
if (n) return d+1;
return 0;
}