[/ / Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com) / / Distributed under the Boost Software License, Version 1.0. (See accompanying / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) /] [section:IteratorConnectHandler Iterator connect handler requirements] An iterator connect handler must meet the requirements for a [link boost_asio.reference.Handler handler]. A value `h` of an iterator connect handler class should work correctly in the expression `h(ec, i)`, where `ec` is an lvalue of type `const error_code` and `i` is an lvalue of the type `Iterator` used in the corresponding `async_connect()` function. [endsect]