When compiling with -std=c++17 the standard header <filesystem> is not found. This is the case for both, g++ and clang++ on coliru.com I left a notice as feedback there. Mwe (talk) 11:05, 5 October 2017 (PDT)
- neither g++ nor clang++ support the standard library for C++17 yet. --Cubbi (talk) 11:18, 5 October 2017 (PDT)