[MERGE] faster arithmetic
authorDavid Mitchell <davem@iabyn.com>
Tue, 10 Nov 2015 13:50:51 +0000 (13:50 +0000)
committerDavid Mitchell <davem@iabyn.com>
Tue, 10 Nov 2015 13:52:34 +0000 (13:52 +0000)

Trivial merge