cppdraft_translate/cppdraft/func/identity.md

[func.identity]

22 General utilities library [utilities]

22.10 Function objects [function.objects]

22.10.12 Class identity [func.identity]

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`struct identity { template constexpr T&& operator()(T&& t) const noexcept;

using is_transparent = unspecified; };

template constexpr T&& operator()(T&& t) const noexcept; `

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Effects: Equivalent to: return std​::​forward(t);