std::experimental::ranges::Invocable, std::experimental::ranges::RegularInvocable

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals 2 TS)

Extensions for parallelism (parallelism TS)

Extensions for concurrency (concurrency TS)

Concepts (concepts TS)

Ranges (ranges TS)

Special mathematical functions (special math TR)

 

Ranges

Concepts

General utilities

Iterators

Algorithms

 

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 F, class... Args> concept bool Invocable() {     return ranges::CopyConstructible<F>() &&            requires(F f, Args&&... args) {                ranges::invoke(f, std::forward<Args>(args)...);                /* not required to be equality preserving */            }; }		(ranges TS)
template <class F, class... Args> concept bool RegularInvocable() {     return Invocable<F, Args...>(); }		(ranges TS)