On Sun, 7 Jun 2020 at 20:12, <hbusch@xxxxxxxxxxxxxx> wrote: > > Hi, > I am using g++ version 7.5.0 on Linux Mint 19 Tara: > > g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 > > When I try to compile a source file which uses the Standard library > header <memory_resource> I get the following error: > > main.cpp:7:10: fatal error: memory_resource: No such file or directory > > As to my knowledge g++ version 7.5.0 supports C++17 and library > <memory_resource> is included since C++17. At least, this page tells > me that it has to be there: > > https://gcc.gnu.org/onlinedocs/gcc-7.5.0/libstdc++/api/a01004_source.html No it doesn't, it tells you a different header is part of libstdc++ in the 7.5.0 release. As https://gcc.gnu.org/onlinedocs/gcc-7.5.0/libstdc++/manual/manual/status.html#status.iso.2017 says, the <memory_resource> header is not supported in 7.5.0.