std::experimental::ranges::Relation

 

C++

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Technical Specifications

 

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

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Concepts library

Core language concepts
Same DerivedFrom ConvertibleTo	CommonReference Common	Integral SignedIntegral UnsignedIntegral	Assignable Swappable
Object concepts
Destructible Constructible DefaultConstructible	MoveConstructible CopyConstructible	Movable Copyable	Semiregular Regular
Comparison concepts
Boolean	WeaklyEqualityComparable	EqualityComparable	StrictTotallyOrdered
Callable concepts
InvocableRegularInvocable	Predicate	Relation	StrictWeakOrder
URNG concept
UniformRandomNumberGenerator

 

Defined in header <experimental/ranges/concepts>
template <class R, class T> concept bool Relation() {     return ranges::Predicate<R, T, T>(); }	(1)	(ranges TS)
template <class R, class T, class U> concept bool Relation() {     return ranges::Relation<R, T>() &&            ranges::Relation<R, U>() &&            ranges::CommonReference<const T&, const U&>() &&            ranges::Relation<R, std::common_reference_t<const T&, const U&>>() &&            ranges::Predicate<R, T, U>() &&            ranges::Predicate<R, U, T>(); }	(2)	(ranges TS)