[Bf-codereview] New convenient get_sibling() function in Red-Black tree implementation (issue 5431064)

[brechtvanlommel at gmail.com]

It looks ok to me, though usually such a small change would be done as
part of a bigger one, like adding the remove function.


http://codereview.appspot.com/5431064/diff/1/source/blender/blenlib/intern/DLRB_tree.c
File source/blender/blenlib/intern/DLRB_tree.c (right):

http://codereview.appspot.com/5431064/diff/1/source/blender/blenlib/intern/DLRB_tree.c#newcode293
source/blender/blenlib/intern/DLRB_tree.c:293: if (node && node->parent)
I'd keep the { brackets here, some compilers warn about this.

http://codereview.appspot.com/5431064/