Defined in header <concepts> | ||
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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 copied (that is, it supports copy construction and copy assignment).
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(C++20) | specifies that an object of a type can be moved and swapped (concept) |
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