#include <string.h>

void *memccpy(void * restrict s1, const void * restrict s2, int c, size_t n)
{
	//__ASSERT_NOOVERLAP(s1, s2, n);

	unsigned char *dst = s1;
	const unsigned char *src = s2;
	for (size_t i = 0; i < n; i++) {
		dst[i] = src[i];
		if (dst[i] == (unsigned char)c) {
			return dst + i + 1;
		}
	}
	return NULL;
}

/*
XOPEN(4)
*/