Function print_ok

subprojects/llama.cpp/tests/test-opt.cpp:174–176

}

static void print_ok(bool subtest_ok) {
    printf(subtest_ok ? "\033[1;32mOK\033[0m\n" : "\033[1;31mFAIL\033[0m\n");
}

static void helper_after_test(
        enum ggml_opt_optimizer_type optim,