fs.cpp

#include <iostream>
#include <experimental/filesystem>
#include <fstream>

namespace fs = std::experimental::filesystem;

int main() {
    fs::path path = u8"猫.txt";

    std::cout << "path = " << path << std::endl;
    std::ifstream input(path);

    for(std::string line; std::getline(input, line);) {
      std::cout << line << std::endl;
    }

    input.close();
    return 0;
}