Comment corriger l'erreur de l'éditeur de liens lors de l'utilisation du système de fichiers expérimental :: en C 1z ?

How to Resolve experimental::filesystem Linker Error in C++1z

In C++1z development, users attempting to leverage the new experimental::filesystem library have encountered a linker error. This issue is distinct from C++1z support, as experimental::filesystem is a separate specification.

To resolve the issue, users must link their code with the appropriate library. For GCC 5.3 and later, use the -lstdc++fs flag:

g++ main.cpp -O2 -g -o go -lstdc++fs

This library should be placed after any objects that rely on it in the linker command since it is a static library.

Updates:

• November 2017: GCC 8.x introduces an implementation of the C++17 Filesystem library in the std::filesystem namespace. When using -std=gnu++17 or -std=c++17, -lstdc++fs is still required.
• January 2019: GCC 9 eliminates the need for -lstdc++fs for C++17 std::filesystem components.
• April 2024: GCC 13.3 adds std::experimental::filesystem symbols to -lstdc++exp.

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