dl_prev()

Returns the previous item in a doubly linked list relative to the given item.

C

Prototype

void *dl_prev(void *curr);

Parameters

Key	Type	Description
curr	void *	Pointer to the current item in the doubly linked list.

---

Return Value

Returns a pointer to the previous item in the list. If curr is NULL, or if curr is the first item in the list, returns NULL.

Notes

Ensure that curr is a valid pointer to an item in a properly initialized doubly linked list before calling dl_prev().

JS

Prototype

// Not applicable in JS

Python

Prototype

# Not applicable in Python

Examples

C

// TODO C examples

JS

// TODO JS examples

Python

# TODO Python examples