How to convert an integer to a string in GLib?

I want to convert an intege开发者_StackOverflow社区r value to string in GLib. Is there any macro or function to da that? Or Can i store different data types in the same doubly linked list?

1. gchar *my_string = g_strdup_printf("%i", my_integer);
2. Yes, you can store any pointer you want, or even an integer using GINT_TO_POINTER, but how will you know what data type to get back out?