mirror of
https://github.com/libSDL2pp/libSDL2pp.git
synced 2025-08-03 02:45:57 -04:00
102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
/*
|
|
libSDL2pp - C++11 bindings/wrapper for SDL2
|
|
Copyright (C) 2014-2015 Dmitry Marakasov <amdmi3@amdmi3.ru>
|
|
|
|
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 SDL2PP_OPTIONAL_HH
|
|
#define SDL2PP_OPTIONAL_HH
|
|
|
|
#include <SDL2pp/Config.hh>
|
|
|
|
////////////////////////////////////////////////////////////
|
|
/// \class SDL2pp::Optional
|
|
///
|
|
/// \brief %Optional value container
|
|
///
|
|
/// \ingroup general
|
|
///
|
|
/// \headerfile SDL2pp/Optional.hh
|
|
///
|
|
/// This class contains an optional value, i.e. a value that
|
|
/// semantically may not be present.
|
|
///
|
|
/// \see http://en.cppreference.com/w/cpp/experimental/optional
|
|
///
|
|
////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////
|
|
/// \class SDL2pp::BadOptionalAccess
|
|
///
|
|
/// \brief %Exception thrown on accessing a SDL2pp::Optional object with uninitialized state
|
|
///
|
|
/// \ingroup general
|
|
///
|
|
/// \headerfile SDL2pp/Optional.hh
|
|
///
|
|
/// \see http://en.cppreference.com/w/cpp/utility/bad_optional_access
|
|
///
|
|
////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////
|
|
/// \var SDL2pp::NullOpt
|
|
///
|
|
/// \brief Null value for SDL2pp::Optional
|
|
///
|
|
/// \ingroup general
|
|
///
|
|
/// \headerfile SDL2pp/Optional.hh
|
|
///
|
|
/// \see http://en.cppreference.com/w/cpp/experimental/optional
|
|
///
|
|
////////////////////////////////////////////////////////////
|
|
|
|
#if defined(SDL2PP_WITH_EXPERIMENTAL_OPTIONAL)
|
|
|
|
# include <experimental/optional>
|
|
|
|
namespace SDL2pp {
|
|
|
|
template<typename T>
|
|
using Optional = std::experimental::optional<T>;
|
|
|
|
using BadOptionalAccess = std::experimental::bad_optional_access;
|
|
|
|
constexpr std::experimental::nullopt_t NullOpt = std::experimental::nullopt;
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
# include <SDL2pp/external/libcpp_optional.hh>
|
|
|
|
namespace SDL2pp {
|
|
|
|
template<typename T>
|
|
using Optional = sdl2pp_libcpp_optional::optional<T>;
|
|
|
|
using BadOptionalAccess = sdl2pp_libcpp_optional::bad_optional_access;
|
|
|
|
constexpr sdl2pp_libcpp_optional::nullopt_t NullOpt = sdl2pp_libcpp_optional::nullopt;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|