mit-crpg/openmc — pull request #344 by smharper (2014-11-27 20:04:35+00:00)
Title: Allocation error checking for unionized grid

On openmc-users we saw [an error](https://groups.google.com/forum/?fromgroups=#!topic/openmc-users/pudKZtZbMVQ) that was probably due to running out of memory for a unionized energy grid. This PR should cause OpenMC to output a more specific error message in some cases of memory errors. Unfortunately, I wasn't able to reproduce the error so I can't confirm that this PR will actually fix the issue we saw, but it certainly won't make the issue worse.