std::indirectly_swappable(3) C++ Standard Libary std::indirectly_swappable(3) NAME std::indirectly_swappable - std::indirectly_swappable Synopsis Defined in header <iterator> template< class I1, class I2 = I1 > concept indirectly_swappable = std::indirectly_readable<I1> && std::indirectly_readable<I2> && requires( const I1 i1, const I2 i2 ) { (since C++20) ranges::iter_swap(i1, i1); ranges::iter_swap(i1, i2); ranges::iter_swap(i2, i1); ranges::iter_swap(i2, i2); }; The concept indirectly_swappable specifies a relationship between two types respectively modelling std::indirectly_readable, where their referenced types can be swapped. Semantic requirements I1 and I2 model indirectly_swappable only if all concepts it subsumes are modeled. Equality preservation Expressions declared in requires expressions of the standard library concepts are required to be equality-preserving (except where stated otherwise). See also indirectly_readable specifies that a type is indirectly readable by ap- plying (C++20) operator * (concept) iter_swap swaps the values referenced by two dereferenceable objects (C++20) (customization point object) http://cppreference.com 2024.06.10 std::indirectly_swappable(3)
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