Searched defs:optional (Results 1 – 1 of 1) sorted by relevance
499 class optional : public optional_detail::optional_base<T> class518 optional() : base() {} in optional() function in boost::optional522 optional( none_t none_ ) : base(none_) {} in optional() function in boost::optional526 optional ( argument_type val ) : base(val) {} in optional() function in boost::optional530 optional ( bool cond, argument_type val ) : base(cond,val) {} in optional() function in boost::optional539 explicit optional ( optional<U> const& rhs ) in optional() function in boost::optional559 explicit optional ( Expr const& expr ) : base(expr,boost::addressof(expr)) {} in optional() function in boost::optional564 optional ( optional const& rhs ) : base( static_cast<base const&>(rhs) ) {} in optional() function in boost::optional