std::copyable

 

C++

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Named requirements

Language support library

Concepts library (C++20)

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Technical Specifications

 

Concepts library

Core language concepts same_as derived_from convertible_to common_reference_with common_with integral signed_integral unsigned_integral floating_point swappableswappable_with destructible constructible_from default_initializable move_constructible copy_constructible assignable_from

Comparison concepts equality_comparableequality_comparable_with totally_orderedtotally_ordered_with Object concepts movable copyable semiregular regular Callable concepts invocableregular_invocable predicate relation equivalence_relation strict_weak_order

 

Defined in header <concepts>
template <class T> concept copyable =   std::copy_constructible<T> &&   std::movable<T> &&   std::assignable_from<T&, T&> &&   std::assignable_from<T&, const T&> &&   std::assignable_from<T&, const T>;		(since C++20)

The concept copyable<T> specifies that T is an movable object type that can also copied (that is, it supports copy construction and copy assignment).

See also

movable (C++20)

specifies that an object of a type can be moved and swapped (concept)