Method get_allocator

3rd/asio-1.24.0/include/asio/compose.hpp:360–363

    std::allocator<void> >::type allocator_type;

  allocator_type get_allocator() const ASIO_NOEXCEPT
  {
    return (get_associated_allocator)(handler_, std::allocator<void>());
  }

#if defined(ASIO_HAS_VARIADIC_TEMPLATES)