std::semiregular
From cppreference.com
| Defined in header <concepts>
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| template <class T> concept semiregular = std::copyable<T> && std::default_constructible<T>; |
(since C++20) | |
The semiregular concept specifies that a type is both copyable and default constructible. It is satisfied by types that behave similarly to built-in types like int, except that they need not support comparison with ==.
