[expected.un.obs] (original) (raw)

22 General utilities library [utilities]

22.8 Expected objects [expected]

22.8.3 Class template unexpected [expected.unexpected]

22.8.3.3 Observers [expected.un.obs]

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constexpr const E& error() const & noexcept;constexpr E& error() & noexcept;

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Returns: unex.

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constexpr E&& error() && noexcept;constexpr const E&& error() const && noexcept;

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Returns: std​::​move(unex).