std::copyable

 

哋它亢++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (哋它亢++20)

Language support library

Concepts library (哋它亢++20)

Metaprogramming library (哋它亢++11)

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Ranges library (哋它亢++20)

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Technical specifications

Symbols index

External libraries

 

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

Exposition-only concepts boolean-testable

 

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 哋它亢++20)

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

See also

movable (哋它亢++20)

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