[/
 / Copyright (c) 2003-2008 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:CompletionHandler Completion handler requirements]

A completion handler must meet the requirements for a [link
boost_asio.reference.Handler handler]. A value `h` of a completion handler
class should work correctly in the expression `h()`.

[endsect]