Constructs an optional from a U, but deletes the constructor if

Synopsis

Declared in <beman/optional/optional.hpp>

template<class U>
requires (std::is_constructible_v<T&, U> && !(std::is_same_v<std::remove_cvref_t<U>, in_place_t>) &&
                 !(std::is_same_v<std::remove_cvref_t<U>, optional>) &&
                 detail::reference_constructs_from_temporary_v<T&, U>)
constexpr
optional(U&& u) = delete;

Parameters

Name

Description

u

The object to move construct from

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