assert_mem_filled
assert_mem_filled(__FILE__, __LINE__, #a1, a1, c, l, TEST_EQ)
assert_mem_filled(__FILE__, __LINE__, #a1, a1, '\0', l, TEST_EQ)
assert_mem_filled(__FILE__, __LINE__, #a1, a1, '\0', l, TEST_NE)
void assert_mem_filled(const char *file, int line,