_Optional_construct_base< _Ty > Struct Template Reference

Inheritance diagram for _Optional_construct_base< _Ty >:

Public Member Functions
template<class... _Types>
void	_Construct (_Types &&..._Args)
template<class _Ty2 >
void	_Assign (_Ty2 &&_Right)
void	reset () _NOEXCEPT

Member Function Documentation

template<class _Ty >

template<class _Ty2 >

void _Optional_construct_base< _Ty >::_Assign ( _Ty2 &&  _Right )

inline

        {   // assign / initialize the contained value from _Right
        if (this->_Has_value)
            {
            this->_Value = _STD forward<_Ty2>(_Right);
            }
        else
            {
            _Construct(_STD forward<_Ty2>(_Right));
            }
        }

template<class _Ty >

template<class... _Types>

void _Optional_construct_base< _Ty >::_Construct ( _Types &&...  _Args )

inline

        {   // transition from the empty to the value-containing state
        // Pre: !this->_Has_value
        _Construct_in_place(this->_Value, _STD forward<_Types>(_Args)...);
        this->_Has_value = true;
        }

template<class _Ty >

void _Optional_construct_base< _Ty >::reset ( )

inline

        {   // destroy any contained value and transition to the empty state
        if (this->_Has_value)
            {
            _Destroy_in_place(this->_Value);
            this->_Has_value = false;
            }
        }

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The documentation for this struct was generated from the following file:

• VS2017/inc/optional