https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80664
--- Comment #1 from Andrzej Krzemienski <akrzemi1 at gmail dot com> --- This happens on all C++11 GCC versions.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80664
--- Comment #1 from Andrzej Krzemienski <akrzemi1 at gmail dot com> --- This happens on all C++11 GCC versions.