ranges::optional_should_convert_assign Concept Reference

The optional_should_convert_assign concept. More...

#include <range/v3/utility/optional.hpp>

Concept definition

template<typename U, typename T>
concept ranges::optional_should_convert_assign = 
        optional_should_convert<U, T> &&
        !(assignable_from<T &, optional<U> &> ||
        assignable_from<T &, optional<U> &&> ||
        assignable_from<T &, optional<U> const &> ||
        assignable_from<T &, optional<U> const &&>)

Detailed Description

The optional_should_convert_assign concept.