tree da320cdec867ca81748f3b85b772422b386bf376
parent 8ced4e82e6f417b13f4bfc09018fc51fd31058e2
author Josh Bailey <joshb@google.com> 1332349207 -0700
committer Avneesh Sachdev <avneesh@opensourcerouting.org> 1333831943 -0700

lib: Tweaks to linked list macros

  * lib/linklist.h

    - Change the listnextnode, listhead and listtail macros so that
      they allow the list pointer to be NULL.

    - Modify the ALL_LIST_ELEMENTS* macros such that they clear the
      data pointer at the beginning and end of the loop.

From: Josh Bailey <joshb@google.com>
Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@diac24.net>