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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the BastionOS freestanding C++ standard library.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBBASTION_UTILITY_MOVE_H
#define _LIBBASTION_UTILITY_MOVE_H
#include <__config>
#include <__type_traits/other_transformations.h>
_LIBBASTION_BEGIN_NAMESPACE_STD
template<class _Tp>
_LIBBASTION_NODISCARD inline constexpr __remove_reference_t(_Tp)&& move(_Tp&& __t) noexcept {
return static_cast<__remove_reference_t(_Tp)&&>(__t);
}
template<class _Tp>
_LIBBASTION_NODISCARD inline constexpr _Tp&& forward(__remove_reference_t(_Tp)& __t) noexcept {
return static_cast<_Tp&&>(__t);
}
template<class _Tp>
_LIBBASTION_NODISCARD inline constexpr _Tp&& forward(__remove_reference_t(_Tp)&& __t) noexcept {
static_assert(!__is_lvalue_reference(_Tp), "cannot forward an rvalue as an lvalue");
return static_cast<_Tp&&>(__t);
}
template<class _Tp>
_LIBBASTION_NODISCARD inline constexpr
conditional_t<
!__is_nothrow_constructible(_Tp, __add_rvalue_reference(_Tp)) &&
__is_constructible(_Tp, __add_lvalue_reference(const _Tp)),
const _Tp&,
_Tp&&>
move_if_noexcept(_Tp& __x) noexcept {
return std::move(__x);
}
_LIBBASTION_END_NAMESPACE_STD
#endif // _LIBBASTION_UTILITY_MOVE_H
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