https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78897
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Fri Feb 10 18:50:30 2017 New Revision: 245341 URL: https://gcc.gnu.org/viewcvs?rev=245341&root=gcc&view=rev Log: PR c++/78897 - constexpr union * constexpr.c (cxx_eval_store_expression): A store to a union member erases a previous store to another member. Added: trunk/gcc/testsuite/g++.dg/cpp1y/constexpr-union1.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/constexpr.c
