Range-v3
Range algorithms, views, and actions for the Standard Library
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ranges::v3::concepts::WeaklyEqualityComparable Struct Reference
Utility » Concepts

Public Member Functions

template<typename T , typename U >
auto requires_ (T &&t, U &&u) -> decltype( concepts::valid_expr( concepts::convertible_to< bool >(t==u), concepts::convertible_to< bool >(t!=u), concepts::convertible_to< bool >(u==t), concepts::convertible_to< bool >(u!=t) ))