[elastic][mpfa] fix broken SFINAE constructs (!1224) · Merge requests · dumux-repositories / dumux

Merged Bernd Flemisch requested to merge fix/return-constexpr into master Sep 19, 2018

Store return values explicitly as constexpr. Fixes compilation errors triggered on specific gcc's.

Edited Sep 19, 2018 by Bernd Flemisch

[elastic][mpfa] fix broken SFINAE constructs