Re: [Libmesh-users] SNES Nonlinear Solve Behaves Differently on Different Machines

[Roy S. <roy...@ic...>]

On Wed, 8 Jan 2014, John Peterson wrote:

> Yep... someone will correct me but I think the *only* thing -DNDEBUG does is compile out asserts?

Effectively that's all it does, however:

Grep for "NDEBUG" and you'll see a bunch of preprocessor tests.  Some
of our asserts require extra precomputation before the asserted
statement, and we generally wrap that in "#ifndef NDEBUG" to avoid
unnecessary computations in optimized code and overzealous warnings
from compilers and static checkers.
---
Roy