ref: b75c7d2fa8b3f9a8ba96e5a3035efa68b8d8cf85
dir: /tests/libc/execute/0030-memcpy.c/
#include <assert.h>
#include <stdio.h>
#include <string.h>
/*
output:
testing
done
end:
*/
int
main()
{
char buf[40];
puts("testing");
assert(!memcmp(memcpy(buf, "abc", 3), "abc", 3));
assert(memcpy(buf, "abc", 0) == buf);
puts("done");
return 0;
}