https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84558
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Sat Mar 3 13:41:20 2018 New Revision: 258205 URL: https://gcc.gnu.org/viewcvs?rev=258205&root=gcc&view=rev Log: Backported from mainline 2018-02-26 Jakub Jelinek <ja...@redhat.com> PR c++/84558 * constexpr.c (cxx_eval_vec_init_1): For reuse, treat NULL eltinit like a valid constant initializer. Formatting fixes. * g++.dg/cpp1y/pr84558.C: New test. Added: branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1y/pr84558.C Modified: branches/gcc-7-branch/gcc/cp/ChangeLog branches/gcc-7-branch/gcc/cp/constexpr.c branches/gcc-7-branch/gcc/testsuite/ChangeLog