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[/
/ Copyright (c) 2003-2015 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:IoObjectService I/O object service requirements]
An I/O object service must meet the requirements for a [link
asio.reference.Service service], as well as the requirements listed
below.
In the table below, `X` denotes an I/O object service class, `a` and `ao` denote
values of type `X`, `b` and `c` denote values of type `X::implementation_type`,
and `u` denotes an identifier.
[table IoObjectService requirements
[[expression] [return type] [assertion/note\npre/post-condition]]
[
[`X::implementation_type`]
[]
[]
]
[
[`X::implementation_type u;`]
[]
[note: `X::implementation_type` has a public default constructor and
destructor.]
]
[
[``
a.construct(b);
``]
[]
[]
]
[
[``
a.destroy(b);
``]
[]
[note: `destroy()` will only be called on a value that has previously been
initialised with `construct()` or `move_construct()`.]
]
[
[``
a.move_construct(b, c);
``]
[]
[note: only required for I/O objects that support movability.]
]
[
[``
a.move_assign(b, ao, c);
``]
[]
[note: only required for I/O objects that support movability.]
]
]
[endsect]
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