Using, CentOs 7.1, gcc version 6.1.0 (GCC) I receive this error:
fatal error: filesystem: No such file or directory
on this line
#include <filesystem>
compiling with
g++ main.cpp -o main -std=c++17
where is the problem?
It seems you have to include <filesystem> like this:
#include <experimental/filesystem>
Don't forget to add -lstdc++fs as a GCC flag!
Here is the proof: Coliru
If that doesn't work, then that probably means that you don't have filesystem in your configuration.
Also, as @MartinR. pointed out, the experimental is no longer needed in GCC 8+.
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