82 lines
1.4 KiB
C++
82 lines
1.4 KiB
C++
/*
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* utility_staticpointer.hpp
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*
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* Created on: Jun 8, 2021
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* Author: erki
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*/
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#ifndef SKULLC_UTILITY_STATICPOINTER_HPP_
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#define SKULLC_UTILITY_STATICPOINTER_HPP_
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#include <new>
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#include <utility>
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#include <utility_assert.hpp>
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namespace Utility
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{
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template<typename T>
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struct StaticPointer
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{
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using value_type = T;
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alignas(value_type) unsigned char storage[sizeof(value_type)];
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template<class... Args>
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value_type& setup(Args&&... args)
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{
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initialized_ = true;
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return *(new (storage) value_type(std::forward<Args>(args)...));
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}
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const value_type& operator*() const
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{
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return *reinterpret_cast<T*>(storage);
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}
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value_type& operator*()
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{
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return *reinterpret_cast<T*>(storage);
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}
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value_type* operator->() noexcept
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{
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return reinterpret_cast<value_type*>(storage);
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}
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const value_type* operator->() const noexcept
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{
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return reinterpret_cast<value_type*>(storage);
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}
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constexpr explicit operator bool() const
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{
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return isInitialized();
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}
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constexpr bool isInitialized() const
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{
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return initialized_;
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}
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value_type* get()
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{
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SKULLC_ASSERT_DEBUG(initialized_);
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return reinterpret_cast<value_type*>(storage);
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}
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const value_type* get() const
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{
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SKULLC_ASSERT_DEBUG(initialized_);
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return reinterpret_cast<const value_type*>(storage);
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}
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private:
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bool initialized_ = false;
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};
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}// namespace Utility
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#endif /* SKULLC_UTILITY_STATICPOINTER_HPP_ */
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