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   3 <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 21. Complex</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0" /><meta name="keywords" content="&#10;      ISO C++&#10;    , &#10;      library&#10;    " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="numerics.html" title="Part X. Numerics" /><link rel="prev" href="numerics.html" title="Part X. Numerics" /><link rel="next" href="bk01pt10ch22.html" title="Chapter 22. Generalized Operations" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 21. Complex</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="numerics.html">Prev</a> </td><th width="60%" align="center">Part X. Numerics</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt10ch22.html">Next</a></td></tr></table><hr /></div><div class="chapter" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title"><a id="manual.numerics.complex"></a>Chapter 21. Complex</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="bk01pt10ch21.html#numerics.complex.processing">complex Processing</a></span></dt></dl></div><p>
   4   </p><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="numerics.complex.processing"></a>complex Processing</h2></div></div></div><p>
   5     </p><p>Using <code class="code">complex&lt;&gt;</code> becomes even more comple- er, sorry,
   6       <span class="emphasis"><em>complicated</em></span>, with the not-quite-gratuitously-incompatible
   7       addition of complex types to the C language.  David Tribble has
   8       compiled a list of C++98 and C99 conflict points; his description of
   9       C's new type versus those of C++ and how to get them playing together
  10       nicely is
  11 <a class="ulink" href="http://david.tribble.com/text/cdiffs.htm#C99-complex" target="_top">here</a>.
  12    </p><p><code class="code">complex&lt;&gt;</code> is intended to be instantiated with a
  13       floating-point type.  As long as you meet that and some other basic
  14       requirements, then the resulting instantiation has all of the usual
  15       math operators defined, as well as definitions of <code class="code">op&lt;&lt;</code>
  16       and <code class="code">op&gt;&gt;</code> that work with iostreams: <code class="code">op&lt;&lt;</code>
  17       prints <code class="code">(u,v)</code> and <code class="code">op&gt;&gt;</code> can read <code class="code">u</code>,
  18       <code class="code">(u)</code>, and <code class="code">(u,v)</code>.
  19    </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="numerics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="numerics.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bk01pt10ch22.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Part X. Numerics </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 22. Generalized Operations</td></tr></table></div></body></html>