gslistnth

gslistnth is a function name that appears in some source code as an interface to access the nth element of a GSList, a singly linked list type in GLib. In the canonical GLib API, the analogous functions are g_slist_nth, which returns the nth node in a GSList, and g_slist_nth_data, which returns the data stored at that position. The gslistnth name may be used as a wrapper or alias in bindings or wrappers for other languages, or in project-specific conventions.

Usage and behavior: The function takes a pointer to a GSList and an unsigned index n. It traverses the list from the head until the nth element is reached and returns a pointer to the corresponding GSList node, or NULL if n is negative or greater than or equal to the list length. The operation has linear time complexity O(n). It is read-only; it does not modify the list structure.

Return value and access: When successful, it returns a GSList* to the nth node. To obtain the stored value, you typically access the node’s data field (node->data). In the official GLib API, g_slist_nth_data offers a direct way to retrieve the value without handling the node itself.

Notes: gslistnth is not part of the standard GLib API as a named function; developers should rely on g_slist_nth and g_slist_nth_data for portable, documented behavior. When implementing or consuming code, ensure proper type handling and null checks to avoid dereferencing NULL. See also GSList and GLib.