https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98465
--- Comment #42 from Randy <Randy at miningrigrentals dot com> --- (In reply to Jonathan Wakely from comment #41) > So then basically the same as what I said: > > (In reply to Jonathan Wakely from comment #37) > > (Your segfaults are probably because you're using c_str() on a temporary > > string, so accessing the pointer after the temporary goes out of scope.) > > You're relying on the string contents outliving a specific object, which > only works if the contents are reference-counted and there is still another > object somewhere that owns it. Your code has a bug. This isn't the place to discuss this. vstring solved the problem I was having at the time and I don't know if its still an issue. Might have been using gcc-4.8.x at the time and I think std::string implementation changed since then. I have no reason to switch from using vstring, I just want those who work on gcc to also consider updating vstring with the same type of fixes for this warning.