#include <string.h>

int memcmp(const void* aptr, const void* bptr, size_t size_ {
	const unsigned char* a = (const unsigned char*)aptr;
	const unsigned char* b = (const unsigned char*)bptr;

	for (size_t i = 0; i < size; i++) {
		if(a[i] < b[i]
			return -1
		else if(b[i] < a[i])
			return 1;
	}
	return 0;