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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.transfer_all"></a><a class="link" href="transfer_all.html" title="transfer_all">transfer_all</a>
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<p>
<a class="indexterm" name="id1180501"></a>
Return a completion condition function object that indicates
that a read or write operation should continue until all of the data has
been transferred, or until an error occurs.
</p>
<pre class="programlisting"><span class="identifier">unspecified</span> <span class="identifier">transfer_all</span><span class="special">();</span>
</pre>
<p>
This function is used to create an object, of unspecified type, that meets
CompletionCondition requirements.
</p>
<a name="asio.reference.transfer_all.example"></a><h5>
<a name="id1180543"></a>
<a class="link" href="transfer_all.html#asio.reference.transfer_all.example">Example</a>
</h5>
<p>
Reading until a buffer is full:
</p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">array</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span> <span class="number">128</span><span class="special">></span> <span class="identifier">buf</span><span class="special">;</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">error_code</span> <span class="identifier">ec</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span> <span class="special">=</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">read</span><span class="special">(</span>
<span class="identifier">sock</span><span class="special">,</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">(</span><span class="identifier">buf</span><span class="special">),</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">transfer_all</span><span class="special">(),</span> <span class="identifier">ec</span><span class="special">);</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">ec</span><span class="special">)</span>
<span class="special">{</span>
<span class="comment">// An error occurred.
</span><span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// n == 128
</span><span class="special">}</span>
</pre>
<a name="asio.reference.transfer_all.requirements"></a><h5>
<a name="id1180814"></a>
<a class="link" href="transfer_all.html#asio.reference.transfer_all.requirements">Requirements</a>
</h5>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/completion_condition.hpp</code>
</p>
<p>
<span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code>
</p>
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<td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 Christopher M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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