tree 133f1dadd602c4e9048417e9f30cf4272df28e25
parent a90b5a12c6c3a326ffb7813379af1f487ae934ef
author Darius Rueckert <darius.rueckert@fau.de> 1574874411 +0100
committer Darius Rueckert <darius.rueckert@fau.de> 1575200281 +0100

Fix ExpressionRef copy constructor and add a move constructor

The move constructor of ExpressionRef now implements the copy
elision, which was incorrectly done by the copy constructor.

This patch also updates the CMakeList to only add the
Expression tests for gcc. This is currently required, because
the AutoDiffCodeGen system relies on implementation defined
behaviour. (Evalution order + copy elision)

Change-Id: Ib17aeb22bd4d81de6d838b55c1b6497fb3740d0e