https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81239
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-06-28 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jon Grant from comment #0) > I noticed that with, or without -std=c++11 on gcc params, the output of > std::string for references still shows __cxx11. for const ref, it isn't > shown in the warning. Confirmed, they should be consistent. > The later warning is ok main.cpp:10:6 That's because it just displays the original source code.