#include <filesystem>
#include <iostream>
#include <stdexcept>

// g++ -std=c++17 main.cpp


int main()
{

   try
   {
      const std::filesystem::path path{"C:\\Temp"};
      std::cout << std::boolalpha << std::filesystem::exists(path) << std::noboolalpha << std::endl;
      std::cout << path.generic_u8string() << std::endl;
      std::cout << std::filesystem::canonical(path).generic_u8string() << std::endl;
   }
   catch(const std::exception& e)
   {
      std::cerr << e.what() << std::endl;
   }


   return 0;
}