...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
// In header: <boost/container/pmr/resource_adaptor.hpp> typedef resource_adaptor_imp< typename allocator_traits< Allocator >::template rebind_alloc< char > > resource_adaptor;
resource_adaptor<Allocator> is rendered as an alias to resource_adaptor_imp class template such that Allocator is rebound to a char value type.