text: //===----------------------------------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  // UNSUPPORTED: c++98, c++03, c++11, c++14
  // XFAIL: dylib-has-no-filesystem
  // FILE_DEPENDENCIES: test.dat
  
  // <fstream>
  
  // template <class charT, class traits = char_traits<charT> >
  // class basic_ifstream
  
  // explicit basic_ifstream(const filesystem::path& s,
  //     ios_base::openmode mode = ios_base::in);
  
  #include <fstream>
  #include <filesystem>
  #include <cassert>
  
  #include "test_macros.h"
  
  namespace fs = std::filesystem;
  
  int main(int, char**) {
    {
      fs::path p;
      static_assert(!std::is_convertible<fs::path, std::ifstream>::value,
                    "ctor should be explicit");
      static_assert(std::is_constructible<std::ifstream, fs::path const&,
                                          std::ios_base::openmode>::value,
                    "");
    }
    {
      std::ifstream fs(fs::path("test.dat"));
      double x = 0;
      fs >> x;
      assert(x == 3.25);
    }
    // std::ifstream(const fs::path&, std::ios_base::openmode) is tested in
    // test/std/input.output/file.streams/fstreams/ofstream.cons/string.pass.cpp
    // which creates writable files.
    {
      std::wifstream fs(fs::path("test.dat"));
      double x = 0;
      fs >> x;
      assert(x == 3.25);
    }
    // std::wifstream(const fs::path&, std::ios_base::openmode) is tested in
    // test/std/input.output/file.streams/fstreams/ofstream.cons/string.pass.cpp
    // which creates writable files.
  
    return 0;
  }
  