id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2836	Request boost::optional<T>::optional_assign_to, optional_move_to, optional_swap	aschoedl@…	niels_dekker	"I request the three member functions 

template< class U > bool boost::optional<T>::optional_assign_to(U& t) const;
template< class U > bool boost::optional<T>::optional_move_to(U& t);
bool boost::optional<T>::optional_swap(T& t);

which, if !*this, return false, and otherwise return true and are equivalent to

t=**this;
t=**this; and *this may have any value after the move
std::swap( t, **this );
"	Feature Requests	assigned	Boost 1.39.0	optional	Boost 1.38.0	Optimization		optional assign	niels_address_until_2010-10-10@…