beman::optional::optional<T&>::optional

In-place constructor.

Synopsis

Declared in <beman/optional/optional.hpp>
template<class Arg>
requires (std::is_constructible_v<T&, Arg> && !detail::reference_constructs_from_temporary_v<T&, Arg>)
constexpr
explicit
optional(
    in_place_t,
    Arg&& arg);

Parameters

Name Description
arg The value to construct in-place from.

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