https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111685
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- https://github.com/gcc-mirror/gcc/blob/d9375e490072d1aae73a93949aa158fcd2a27018/libstdc%2B%2B-v3/include/bits/stl_algo.h#L1814 is exactly where a temp copy is created. Is that valid for std::sort, I am pretty sure it is.
