std::default_initializable3

[concept.defaultinitializable], concept default_initializable

Usage

#include <concepts>

Concept definition

    template<typename _Tp>
    concept default_initializable = constructible_from<_Tp>
      && requires
      {
        _Tp{};
        (void) ::new _Tp;
      }

Detailed Description

[concept.defaultinitializable], concept default_initializable