GLib GList

Doubly-Linked Lists

//-- test_GList.c --
#include <stdio.h>
#include <stdlib.h>
#include <glib.h>

void print_iterator(gpointer data, gpointer user_data) {
  g_print(user_data, data);
}

int main(void) {
  {
    GList* list = g_list_append(NULL, "First");
    list = g_list_append(list, "Second");
    g_list_foreach(list, (GFunc) puts, NULL);
    puts(((GList *) g_list_previous(g_list_last(list)))->data);
    g_list_free(list);
  }
  puts("---");
  {
    GList* list = g_list_append(NULL, g_strdup("First"));
    list = g_list_append(list, g_strdup("Second"));
    list = g_list_append(list, g_strdup("Third"));

    GList* temp_list = g_list_previous(g_list_last(list));
    list = g_list_remove_link(list, temp_list);
    puts(temp_list->data);
    g_free(temp_list->data);

    g_list_foreach(list, print_iterator, "%s\n");
    g_list_foreach(list, (GFunc) g_free, NULL);
    g_list_free(list);
  }
  return EXIT_SUCCESS;
}

/*
$ gcc `pkg-config --cflags --libs glib-2.0` -o test_GList test_GList.c
$ ./test_GList
First
Second
First
---
Second
First
Third
*/