std:: copyable

From cppreference.com
C++
Concepts library
Exposition-only concepts
 (C++20)
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 a movable object type that can also be copied (that is, it supports copy construction and copy assignment).

References

  • C++23 standard (ISO/IEC 14882:2024):
  • 18.6 Object concepts [concepts.object]
  • C++20 standard (ISO/IEC 14882:2020):
  • 18.6 Object concepts [concepts.object]

See also

(C++20)
specifies that an object of a type can be moved and swapped
(concept)
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