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C++ String Streams [C++ Reference]
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<h1><a name="c_string_streams" id="c_string_streams">C++ String Streams</a></h1>
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<p>
String streams are similar to the <iostream> and <fstream> libraries,
except that string streams allow you to perform I/O on strings instead
of streams. The <sstream> library provides functionality similar to
<a href="../../c/io/sscanf.html" class="wikilink1" title="c:io:sscanf">sscanf</a> and <a href="../../c/io/sprintf.html" class="wikilink1" title="c:io:sprintf">sprintf</a> in the standard C library.
</p>
<p>
Three main classes are available in <sstream>:
</p>
<ul>
<li class="level1"><div class="li"> stringstream - allows input and output</div>
</li>
<li class="level1"><div class="li"> istringstream - allows input only</div>
</li>
<li class="level1"><div class="li"> ostringstream - allows output only</div>
</li>
</ul>
<p>
String streams are actually subclasses of iostreams, so all of the
functions available for iostreams are also available for
stringstream. See the <a href="../../io/start.html" class="wikilink1" title="io:start">C++ I/O functions</a> for more information.
</p>
<p>
In addition, string streams also supply the following functions:
</p>
<table class="inline">
<tr class="row0">
<td class="col0"><a href="../../io/sstream/constructors.html" class="wikilink1" title="io:sstream:constructors">Constructors</a></td><td class="col1">create new string streams</td>
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<tr class="row1">
<td class="col0"><a href="../../io/sstream/operators.html" class="wikilink1" title="io:sstream:operators">Operators</a></td><td class="col1">read from and write to string streams</td>
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<td class="col0"><a href="../../io/sstream/rdbuf.html" class="wikilink1" title="io:sstream:rdbuf">rdbuf</a></td><td class="col1">get the buffer for a string stream</td>
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<td class="col0"><a href="../../io/sstream/str.html" class="wikilink1" title="io:sstream:str">str</a></td><td class="col1">get or set the stream's string</td>
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