hpcc-systems/HPCC-Platform — pull request #1341 by ghalliday (2012-01-24 14:51:35+00:00)
Title: roxiemem refactoring - Some minor optimizations

- No need to use a special value for an exhausted free list, the general
case will be just as quick.
- Remove some unnecessary null checks.

Signed-off-by: Gavin Halliday