Fixed size==0 bug pointed out by Rod P.
Fixed size==0 bug pointed out by Rod P.

--HG--
extra : convert_revision : svn%3A546481bc-9713-0410-bf18-d3337bbf4a3e/trunk%40231

blanham/PDCLib,blanham/PDChickenLib,blanham/PDCLib,blanham/PDChickenLib,blanham/PDCLib,blanham/PDChickenLib