From: Eric Wong <normalperson@yhbt.net>
Date: Fri, 24 Oct 2014 22:02:29 +0000 (+0000)
Subject: list: list_swap to exchange elements
X-Git-Url: https://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=3d74240c155b68ae0d59a5942048aa1db3e29b01;hp=3d74240c155b68ae0d59a5942048aa1db3e29b01;ds=sidebyside

list: list_swap to exchange elements

This allows deleting and re-inserting an element in place
of the deleted element without branching.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---