Modern C++ Programming Cookbook

How to do it...

Use the following library functions to retrieve information about filesystem objects:

• To check whether a path refers to an existing filesystem object, use exists():

        auto exists = fs::exists(path, err);        std::cout << "file exists: " << std::boolalpha                  << exists << std::endl;

• To check whether two different paths refer to the same filesystem object, use equivalent():

        auto same = fs::equivalent(path,                        fs::current_path() / "." / "main.cpp");        std::cout << "equivalent: " << same << std::endl;

• To retrieve the size of a file in bytes, use file_size():

        auto size = fs::file_size(path, err);        std::cout << "file size: " << size << std::endl;

• To retrieve the count of hard links to a filesystem object, use hard_link_count():