absl::optional_ref::optional_ref

Constructs an optional_ref from a const std::optional.

Synopsis

Declared in <absl/types/optional_ref.h>

template<
    typename U,
    typename = EnableIfConvertibleFrom<U const>>
constexpr
optional_ref(std::optional<U> const& input);

Parameters

NameDescription
inputThe optional whose value (if any) is referred to.