#ifndef OPAQUE_UTILITY_HPP
#define OPAQUE_UTILITY_HPP
//
// Copyright (c) 2016
// Kyle Markley.  All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
// 2. 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.
// 3. Neither the name of the author nor the names of any 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.
//
#include <type_traits>
#include <utility>

namespace opaque {

/// \addtogroup internal
/// @{

#if __cplusplus >= 201402L
using std::forward;
using std::move;
#else
template <typename T>
constexpr T&& forward(typename std::remove_reference<T>::type&  t) noexcept {
  return static_cast<T&&>(t);
}
template <typename T>
constexpr T&& forward(typename std::remove_reference<T>::type&& t) noexcept {
  static_assert(not std::is_lvalue_reference<T>::value, "lvalue reference");
  return static_cast<T&&>(t);
}
template <typename T>
constexpr typename std::remove_reference<T>::type&& move(T&& t) noexcept {
  return static_cast<typename std::remove_reference<T>::type&&>(t);
}
#endif

/// @}

}

#endif