https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115196
--- Comment #5 from Halalaluyafail3 <luigighiron at gmail dot com> --- (In reply to Jonathan Wakely from comment #4) > (In reply to Halalaluyafail3 from comment #0) > > This note doesn't seem to be very helpful, it mentions adding an extra > > '#include<memory>' when one is already present. A better error message here > > would be to omit the note, or to make it mention changing the selected C++ > > standard version. > > If you'd tried gcc trunk on godbolt you'd have seen that's exactly what > happens: > > <source>:3:10: note: 'std::to_address' is only available from C++20 onwards > > There was just a typo which made gcc think std::to_address is part of > <memory> in C++11, so if it wasn't declared in your program then it must be > because you didn't include <memory>. > > After the fix it correctly suggests using at least C++20. My bad, I only tested this on GCC 14.1 and assumed that GCC 14.1 was recent enough that it wouldn't have been changed.
