gistfile1.c

    /**
     * Create some view options..
     */
    lcb_view_option_t opt_stale;
    lcb_view_option_t opt_onerr;
    lcb_view_option_t opt_limit;
    lcb_view_option_t opt_invalid;

    lcb_view_option_t *optlist[] = {
            &opt_stale,
            &opt_onerr,
            &opt_limit,
            &opt_invalid
    };

    lcb_error_t err;
    char *estr = NULL;
    int optval;
    int opttype;


    /**
     * Use constants (and avoid mistyping strings) for options which support it
     */
    opttype = LCB_VOPT_OPT_STALE;
    optval = 0;
    err = lcb_make_view_option(&opt_stale,
                               &opttype, 0,
                               &optval, 0,
                               LCB_VOPT_F_OPTNAME_NUMERIC|LCB_VOPT_F_OPTVAL_NUMERIC,
                               &estr);

    assert (err == LCB_SUCCESS);

    /**
     * Strings!
     */
    err = lcb_make_view_option(&opt_onerr,
                               "on_error", -1,
                               "continue", -1,
                               0,
                               &estr);

    assert (err == LCB_SUCCESS);
    optval = 10;

    /* mix them around */
    err = lcb_make_view_option(&opt_limit,
                               "limit", -1,
                               &optval, 0,
                               LCB_VOPT_F_OPTVAL_NUMERIC,
                               &estr);

    assert (err == LCB_SUCCESS);

    /* Invalid options fail */
    err = lcb_make_view_option(&opt_invalid,
                               "invalid_option_string", -1,
                               "invalid value", -1,
                               0, &estr);

    /* Try it again, with a special flag */
    assert(err == LCB_EINVAL);
    printf("%s\n", estr);

    /* Try it again, with a special flag */

    err = lcb_make_view_option(&opt_invalid,
                               "invalid_option_string", -1,
                               "[\"json\",\"encoded\"]", -1,
                               LCB_VOPT_F_PASSTHROUGH|LCB_VOPT_F_PCTENCODE,
                               &estr);
    assert(err == LCB_SUCCESS);

    int num_options = sizeof(optlist) / sizeof(*optlist);
    printf("Estimated length: %d\n",
           lcb_vqstr_calc_len(optlist, num_options));

    char buf[128] = { 0 };
    lcb_vqstr_write(optlist, num_options, buf);
    printf("Got buffer %s\n", buf);


    lcb_cleanup_view_option(&opt_stale);
    lcb_cleanup_view_option(&opt_onerr);
    lcb_cleanup_view_option(&opt_limit);
    lcb_cleanup_view_option(&opt_invalid);