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----------------- begin source -----------------------
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) {
    GOptionContext *context = g_option_context_new(NULL);
    g_option_context_set_summary(context, "Simple GLib commandline arguments parsing test.");
    g_option_context_set_description(context, "This is a description. My name is psYchotic.");
    gboolean test;
    gchar *string;
    gint integer;
    GOptionEntry entries[] = {
        { "test", 't', 0, G_OPTION_ARG_NONE, &test, "bla", NULL },
        { "string", '0', 0, G_OPTION_ARG_STRING, &string, "bla", "name" },
        { "integer", 'i', 0, G_OPTION_ARG_INT, &integer, "bla", "int" }
    };
    g_option_context_add_main_entries(context, entries, NULL);
    g_option_context_parse(context, &argc, &argv, NULL);

    return 0;
}
----------------- end source -------------------------
----------------- begin output -----------------------
[Invalid UTF-8] Usage:
  test [OPTION...]

Simple GLib commandline arguments parsing test.

Help Options:
  -?, --help                                       Show help options

Application Options:
  -t, --test                                       bla
  -0, --string=name                                bla
  -i, --integer=int                                bla
  --L\x89d$\xe0L\x89l$\xe8I\x89\xd5L\x89t$\xf0L\x89|$\xf8I\x89\xf6H\x89\$\xd0H\x89l$\xd8H\x83\xec8A\x89\xff\xe8H\xfd\xff\xffH\x8d\x05\x9d\x05 =\x89\xc7\xe8eU\x01     

This is a description. My name is psYchotic.
------------------- end output -----------------------