std::SignedIntegral

 

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

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

 

Concepts library

Core language concepts
Same DerivedFrom ConvertibleTo CommonReference Common	Integral SignedIntegral UnsignedIntegral Assignable SwappableSwappableWith	Destructible Constructible DefaultConstructible MoveConstructible CopyConstructible
Comparison concepts
Boolean	EqualityComparableEqualityComparableWith	StrictTotallyOrderedStrictTotallyOrderedWith
Object concepts
Movable Copyable	Semiregular Regular
Callable concepts
InvocableRegularInvocable	Predicate	Relation StrictWeakOrder

 

Defined in header <concepts>
template < class T > concept SignedIntegral = std::Integral<T> && std::is_signed_v<T>;		(since C++20)

The concept SignedIntegral<T> is satisfied if and only if T is an integral type and std::is_signed_v<T> is true.

Notes

SignedIntegral<T> may be satisfied by a type that is not a signed integer type, for example, char (on a system where char is signed).

See also

is_integral (C++11)	checks if a type is integral type (class template)
is_signed (C++11)	checks if a type is signed arithmetic type (class template)