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| <H1 CLASS="title">Function Template <CODE>copy</CODE></H1> |
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| <DT><A href="#description">Description</A></DT> |
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| <H2>Description</H2> |
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| <P>The function template <CODE>copy</CODE> reads data from a given model of <A HREF="../concepts/source.html">Source</A> and writes it to a given model of <A HREF="../concepts/sink.html">Sink</A> until the end of stream is reached. It then closes both components, using the function template <A HREF="close.html"><CODE>close</CODE></A>, and returns the number of characters written.</P> |
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| <P>The size of the temporary buffer used may be supplied as an optional parameter.</P> |
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| <P>There are four overloads of <CODE>copy</CODE> to accommodate all combinations of <A HREF="../concepts/source.html">Sources</A> and <A HREF="../concepts/sink.html">Sinks</A>, which are passed by <CODE>const</CODE> reference, and streams and stream buffers, which are passed by non-<CODE>const</CODE> reference.</P> |
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| <DT><A CLASS="header" HREF="../../../../boost/iostreams/copy.hpp"><CODE><boost/iostreams/copy.hpp></CODE></A></DT> |
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| <H2>Synopsis</H2> |
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| <PRE CLASS="broken_ie"><SPAN CLASS="keyword">namespace</SPAN> boost { <SPAN CLASS="keyword">namespace</SPAN> iostreams { |
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| <SPAN CLASS="keyword">template</SPAN><<SPAN CLASS="keyword">typename</SPAN> Source, <SPAN CLASS="keyword">typename</SPAN> Sink> |
| std::streamsize |
| copy( [<SPAN CLASS="keyword">const</SPAN>] Source& src, [<SPAN CLASS="keyword">const</SPAN>] Sink& sink, |
| std::streamsize buffer_size = <SPAN CLASS="omitted">default value</SPAN> ); |
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| } } <SPAN CLASS="comment">// End namespace boost::io</SPAN></PRE> |
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| <P CLASS="copyright">Revised 02 Feb 2008</P> |
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| <P CLASS="copyright">© Copyright 2008 <a href="http://www.coderage.com/" target="_top">CodeRage, LLC</a><br/>© Copyright 2004-2007 <a href="http://www.coderage.com/turkanis/" target="_top">Jonathan Turkanis</a></P> |
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| 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">http://www.boost.org/LICENSE_1_0.txt</A>) |
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