text: // BSD 3-Clause License
  
  // Copyright (c) 2019, SCALE Lab, Brown University
  // All rights reserved.
  
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  
  // * Redistributions of source code must retain the above copyright notice, this
  //   list of conditions and the following disclaimer.
  
  // * Redistributions in binary form must reproduce the above copyright notice,
  //   this list of conditions and the following disclaimer in the documentation
  //   and/or other materials provided with the distribution.
  
  // * Neither the name of the copyright holder nor the names of its
  //   contributors may be used to endorse or promote products derived from
  //   this software without specific prior written permission.
  
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  
  #pragma once
  
  #include <string>
  #include <vector>
  
  namespace psn
  {
  namespace filesystem
  {
  
  bool create_directory(const std::string& raw_path);
  
  class path
  {
      std::string path_str_;
  
  public:
      path(const std::string& raw_path);
      path        operator/(path const& other_path) const;
      std::string generic_string() const;
      std::string string() const;
      path        filename() const;
  
      operator std::string() const;
  
      static inline char
      separator()
      {
  #ifdef _WIN32
          return '\\';
  #else
          return '/';
  #endif
      }
  };
  
  class directory_entry
  {
      typedef class path path_type;
      path_type          path_;
  
  public:
      directory_entry(const std::string& p) : path_(p)
      {
      }
      directory_entry(path_type p) : path_(p)
      {
      }
      path_type
      path() const
      {
          return path_type(path_);
      }
  };
  
  std::vector<directory_entry> directory_iterator(const std::string& target_path);
  std::vector<directory_entry> directory_iterator(const path target_path);
  
  } // namespace filesystem
  
  } // namespace psn
  