https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53690
--- Comment #13 from Wesley J. Landaker <wjl at icecavern dot net> --- However, it is fixed the 6.0 preview version, which is good! $ g++ --version g++ (Debian 6-20160117-1) 6.0.0 20160117 (experimental) [trunk revision 232481] Copyright (C) 2016 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ g++ -std=c++14 x.cpp $ ./a.out 0 0 0 0 0 0 0 0