text: ////////////////////////////////////////////////////////////
  //
  // SFML - Simple and Fast Multimedia Library
  // Copyright (C) 2007-2019 Laurent Gomila (laurent@sfml-dev.org)
  //
  // This software is provided 'as-is', without any express or implied warranty.
  // In no event will the authors be held liable for any damages arising from the use of this software.
  //
  // Permission is granted to anyone to use this software for any purpose,
  // including commercial applications, and to alter it and redistribute it freely,
  // subject to the following restrictions:
  //
  // 1. The origin of this software must not be misrepresented;
  //    you must not claim that you wrote the original software.
  //    If you use this software in a product, an acknowledgment
  //    in the product documentation would be appreciated but is not required.
  //
  // 2. Altered source versions must be plainly marked as such,
  //    and must not be misrepresented as being the original software.
  //
  // 3. This notice may not be removed or altered from any source distribution.
  //
  ////////////////////////////////////////////////////////////
  
  #ifndef SFML_JOYSTICKIMPL_HPP
  #define SFML_JOYSTICKIMPL_HPP
  
  ////////////////////////////////////////////////////////////
  // Headers
  ////////////////////////////////////////////////////////////
  #include <SFML/Config.hpp>
  #include <SFML/Window/Joystick.hpp>
  #include <SFML/System/String.hpp>
  #include <algorithm>
  
  
  namespace sf
  {
  namespace priv
  {
  ////////////////////////////////////////////////////////////
  /// \brief Structure holding a joystick's information
  ///
  ////////////////////////////////////////////////////////////
  struct JoystickCaps
  {
      JoystickCaps()
      {
          buttonCount = 0;
          std::fill(axes, axes + Joystick::AxisCount, false);
      }
  
      unsigned int buttonCount;               //!< Number of buttons supported by the joystick
      bool         axes[Joystick::AxisCount]; //!< Support for each axis
  };
  
  
  ////////////////////////////////////////////////////////////
  /// \brief Structure holding a joystick's state
  ///
  ////////////////////////////////////////////////////////////
  struct JoystickState
  {
      JoystickState()
      {
          connected = false;
          std::fill(axes, axes + Joystick::AxisCount, 0.f);
          std::fill(buttons, buttons + Joystick::ButtonCount, false);
      }
  
      bool  connected;                      //!< Is the joystick currently connected?
      float axes[Joystick::AxisCount];      //!< Position of each axis, in range [-100, 100]
      bool  buttons[Joystick::ButtonCount]; //!< Status of each button (true = pressed)
  };
  
  } // namespace priv
  
  } // namespace sf
  
  
  #if defined(SFML_SYSTEM_WINDOWS)
  
      #include <SFML/Window/Win32/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_LINUX)
  
      #include <SFML/Window/Unix/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_FREEBSD)
  
      #include <SFML/Window/FreeBSD/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_OPENBSD)
  
      #include <SFML/Window/OpenBSD/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_MACOS)
  
      #include <SFML/Window/OSX/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_IOS)
  
      #include <SFML/Window/iOS/JoystickImpl.hpp>
  
  #elif defined(SFML_SYSTEM_ANDROID)
  
      #include <SFML/Window/Android/JoystickImpl.hpp>
  
  #endif
  
  
  #endif // SFML_JOYSTICKIMPL_HPP
  