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String Stream Operators [C++ Reference]
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<h2><a name="string_stream_operators" id="string_stream_operators">String Stream Operators</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <sstream></span>
operator<span class="sy0"><<</span>
operator<span class="sy0">>></span></pre>
<p>
Like C++_I/O_Streams, the simplest way to use string streams is to take
advantage of the overloaded « and » operators.
The « operator inserts data into the stream. For example:
</p>
<pre class="c code c++" style="font-family:monospace;"> stream1 <span class="sy0"><<</span> <span class="st0">"hello"</span> <span class="sy0"><<</span> i<span class="sy0">;</span></pre>
<p>
This example inserts the string “hello” and the variable i into stream1. In
contrast, the » operator extracts data out of a string stream:
</p>
<pre class="c code c++" style="font-family:monospace;"> stream1 <span class="sy0">>></span> i<span class="sy0">;</span></pre>
<p>
This code reads a value from stream1 and assigns the variable i that value.
</p>
<p>
Related Topics: <a href="../../io/start.html" class="wikilink1" title="io:start">C++ I/O Streams</a>
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