std::unexpect_t, std::unexpect
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Defined in header
<expected> |
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struct unexpect_t {
explicit unexpect_t() = default; |
(1) | (since C++23) |
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inline constexpr unexpect_t unexpect{};
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(2) | (since C++23) |
1) A tag type for in-place construction of an unexpected value in an
std::expected object.2) A constant of type const std::unexpect_t which is usually directly passed to a constructor of
std::expected to construct an unexpected value.Notes
Like other construction tag types, unexpect_t is a trivial, empty class with an explicit default constructor.
See also
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(C++23)
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constructs the expected object(public member function) |