Function parse_options

ds4_eval.c:1502–1689

static ds4_backend default_backend(void) {
#ifdef DS4_NO_GPU
    return DS4_BACKEND_CPU;
#elif defined(__APPLE__)
    return DS4_BACKEND_METAL;
#else
    return DS4_BACKEND_CUDA;
#endif
}

static void usage(FILE *fp, const char *topic) {
    ds4_help_print(fp, DS4_HELP_EVAL, topic);
}

static eval_config parse_options(int argc, char **argv) {
    eval_config c = {
        .model_path = "ds4flash.gguf",
        .backend = default_backend(),
        .max_tokens = 16000,
        .top_p = DS4_DEFAULT_TOP_P,
        .min_p = DS4_DEFAULT_MIN_P,
        .pause_ms = 350,
        .soft_limit_reply_budget = 1024,
        .hard_limit_reply_budget = 512,
        .soft_limit_think_close_rank = 3,
        .think_mode = DS4_THINK_HIGH,
    };

    for (int i = 1; i < argc; i++) {
        const char *arg = argv[i];
        if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
            const char *topic = (i + 1 < argc && argv[i + 1][0] != '-') ?
                argv[i + 1] : NULL;
            usage(stdout, topic);
            exit(0);
        }
        char dist_parse_err[256] = {0};
        ds4_dist_cli_parse_result dist_parse =
            ds4_dist_parse_cli_arg(arg,
                                   &i,
                                   argc,
                                   argv,
                                   &c.dist,
                                   dist_parse_err,
                                   sizeof(dist_parse_err));
        if (dist_parse == DS4_DIST_CLI_ERROR) {
            fprintf(stderr,
                    "ds4-eval: %s\n",
                    dist_parse_err[0] ? dist_parse_err : "invalid distributed option");
            exit(2);
        }
        if (dist_parse == DS4_DIST_CLI_MATCHED) continue;

        if (!strcmp(arg, "-m") || !strcmp(arg, "--model")) {
            c.model_path = need_arg(&i, argc, argv, arg);
        } else if (!strcmp(arg, "--mtp")) {
            c.mtp_path = need_arg(&i, argc, argv, arg);
        } else if (!strcmp(arg, "-c") || !strcmp(arg, "--ctx")) {
            c.ctx_size = parse_int_arg(need_arg(&i, argc, argv, arg), arg);
        } else if (!strcmp(arg, "-n") || !strcmp(arg, "--tokens")) {