124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
/**
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This file is a part of rexy's general purpose library
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Copyright (C) 2022 rexy712
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef REXY_STORAGE_FOR_TPP
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#define REXY_STORAGE_FOR_TPP
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#include <utility> //forward, move
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namespace rexy{
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template<class T>
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template<class... Args>
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constexpr storage_for<T>::storage_for(Args&&... args)noexcept(std::is_nothrow_constructible<value_type,Args...>::value){
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new (m_storage) T(std::forward<Args>(args)...);
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m_dirty = 1;
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}
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template<class T>
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constexpr storage_for<T>::storage_for(const_reference t)noexcept(std::is_nothrow_copy_constructible<value_type>::value){
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new (m_storage) T(t);
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m_dirty = 1;
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}
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template<class T>
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constexpr storage_for<T>::storage_for(rvalue_reference t)noexcept(std::is_nothrow_move_constructible<value_type>::value){
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new (m_storage) T(std::move(t));
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m_dirty = 1;
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}
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template<class T>
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constexpr storage_for<T>::storage_for(const storage_for& s)noexcept(std::is_nothrow_copy_constructible<value_type>::value){
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new (m_storage) T(reinterpret_cast<const T&>(s.m_storage));
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m_dirty = 1;
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}
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template<class T>
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constexpr storage_for<T>::storage_for(storage_for&& s)noexcept(std::is_nothrow_move_constructible<value_type>::value){
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new (m_storage) T(std::move(reinterpret_cast<T&>(&s.m_storage)));
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m_dirty = 1;
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}
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template<class T>
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constexpr storage_for<T>::~storage_for(void)noexcept(std::is_nothrow_destructible<value_type>::value){
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if(m_dirty){
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destroy();
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}
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}
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template<class T>
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constexpr storage_for<T>& storage_for<T>::operator=(const storage_for& s)noexcept(std::is_nothrow_copy_assignable<value_type>::value){
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reinterpret_cast<T&>(m_storage) = static_cast<const T&>(s);
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return *this;
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}
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template<class T>
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constexpr storage_for<T>& storage_for<T>::operator=(storage_for&& s)noexcept(std::is_nothrow_move_assignable<value_type>::value){
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reinterpret_cast<T&>(m_storage) = static_cast<T&&>(std::move(s));
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return *this;
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}
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template<class T>
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constexpr storage_for<T>& storage_for<T>::operator=(const_reference t)noexcept(std::is_nothrow_copy_assignable<value_type>::value){
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reinterpret_cast<T&>(m_storage) = t;
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return *this;
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}
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template<class T>
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constexpr storage_for<T>& storage_for<T>::operator=(rvalue_reference t)noexcept(std::is_nothrow_move_assignable<value_type>::value){
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reinterpret_cast<T&>(m_storage) = std::move(t);
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return *this;
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}
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template<class T>
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constexpr void storage_for<T>::destroy(void)noexcept(std::is_nothrow_destructible<value_type>::value){
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reinterpret_cast<T*>(&m_storage)->~T();
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m_dirty = 0;
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}
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template<class T>
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constexpr storage_for<T>::operator reference(void)noexcept{
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return reinterpret_cast<reference>(m_storage);
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}
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template<class T>
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constexpr storage_for<T>::operator const_reference(void)const noexcept{
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return m_storage;
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}
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template<class T>
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constexpr storage_for<T>::operator rvalue_reference(void)&& noexcept{
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return reinterpret_cast<rvalue_reference>(std::move(m_storage));
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}
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template<class T>
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constexpr auto storage_for<T>::operator->(void)noexcept -> pointer{
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return reinterpret_cast<T*>(&m_storage);
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}
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template<class T>
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constexpr auto storage_for<T>::operator->(void)const noexcept -> const_pointer{
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return reinterpret_cast<const T*>(&m_storage);
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}
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template<class T>
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constexpr auto storage_for<T>::operator*(void)noexcept -> reference{
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return reinterpret_cast<T&>(m_storage);
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}
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template<class T>
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constexpr auto storage_for<T>::operator*(void)const noexcept -> const_reference{
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return reinterpret_cast<const T&>(m_storage);
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}
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template<class T>
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constexpr bool storage_for<T>::valid(void)const{
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return m_dirty;
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}
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}
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#endif
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