https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77528
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-09-08 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- Untested fix: --- a/libstdc++-v3/include/bits/stl_queue.h +++ b/libstdc++-v3/include/bits/stl_queue.h @@ -143,12 +143,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION queue(const _Sequence& __c = _Sequence()) : c(__c) { } #else + template<typename _Seq = _Sequence, typename _Requires = + typename enable_if<is_default_constructible<_Seq>::value>::type> + queue() + : c() { } + explicit queue(const _Sequence& __c) : c(__c) { } explicit - queue(_Sequence&& __c = _Sequence()) + queue(_Sequence&& __c) : c(std::move(__c)) { } template<typename _Alloc, typename _Requires = _Uses<_Alloc>>