std::Semiregular
| Defined in header <concepts> | ||
|---|---|---|
| template <class T> concept Semiregular = std::Copyable<T> && std::DefaultConstructible<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 ==.
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