GLib collections examples

glib_example.c

#include <stdio.h>
#include <glib.h>

int main(int argc, char *argv[])
{
	/* Linked List demo */
	GList *list = NULL;

	list = g_list_append(list, "Hello world!");
	list = g_list_append(list, "Bye world!");

	printf("first: %s\n", (char *)g_list_first(list)->data);
	printf("length: %d\n", g_list_length(list));

	g_list_free(list);
	/* end  */

	/* Hash Table demo */
	GHashTable *dict = g_hash_table_new(g_str_hash, g_str_equal);

	g_hash_table_insert(dict, "hi", "world");
	g_hash_table_insert(dict, "key", "value");

	printf("key: %s\n", (char *)g_hash_table_lookup(dict, "key"));
	printf("hi: %s\n", (char *)g_hash_table_lookup(dict, "hi"));

	g_hash_table_destroy(dict);
	/* end  */

	/* Array demo */
	GArray *int_vec = g_array_new(FALSE, FALSE, sizeof(int));

	int v1 = 2, v2 = 3, v3 = 45;
	g_array_append_val(int_vec, v1);
	g_array_append_val(int_vec, v2);
	g_array_append_val(int_vec, v3);

	printf("int_vec[0]: %d\n", g_array_index(int_vec, int, 0));
	printf("int_vec[1]: %d\n", g_array_index(int_vec, int, 1));
	printf("int_vec[2]: %d\n", g_array_index(int_vec, int, 2));

	g_array_free(int_vec, TRUE);
	/* end  */

	return 0;
}