std::pmr::memory_resource::memory_resource (3) Linux Manual Page

std::pmr::memory_resource::memory_resource – std::pmr::memory_resource::memory_resource

Synopsis

memory_resource() = default;
(1)(since C++ 17)(implicitly declared)

    memory_resource(const memory_resource &) = default;
(2)(since C++ 17)(implicitly declared)

1) Implicitly declared default constructor.
2) Implicitly declared copy constructor.