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;
1
#
Returns: unex.
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constexpr E&& error() && noexcept; constexpr const E&& error() const && noexcept;
2
#
Returns: std​::​move(unex).

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