libstdc++-v3/doc/html/manual/bk01pt12ch36.html

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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 36. Numerics</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /><meta name="keywords" content="&#10;      ISO C++&#10;    , &#10;      library&#10;    " /><link rel="start" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="extensions.html" title="Part XII. Extensions" /><link rel="prev" href="bk01pt12ch35.html" title="Chapter 35. Algorithms" /><link rel="next" href="bk01pt12ch37.html" title="Chapter 37. Iterators" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 36. Numerics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk01pt12ch35.html">Prev</a> </td><th width="60%" align="center">Part XII. Extensions</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt12ch37.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.ext.numerics"></a>Chapter 36. Numerics</h2></div></div></div><p>26.4, the generalized numeric operations such as accumulate, are extended
   4    with the following functions:
   5 </p><pre class="programlisting">
   6    power (x, n);
   7    power (x, n, moniod_operation);</pre><p>Returns, in FORTRAN syntax, "x ** n" where n&gt;=0.  In the
   8    case of n == 0, returns the <a class="ulink" href="#ch20" target="_top">identity element</a> for the
   9    monoid operation.  The two-argument signature uses multiplication (for
  10    a true "power" implementation), but addition is supported as well.
  11    The operation functor must be associative.
  12 </p><p>The <code class="code">iota</code> function wins the award for Extension With the
  13    Coolest Name.  It "assigns sequentially increasing values to a range.
  14    That is, it assigns value to *first, value + 1 to *(first + 1) and so
  15    on."  Quoted from SGI documentation.
  16 </p><pre class="programlisting">
  17    void iota(_ForwardIter first, _ForwardIter last, _Tp value);</pre></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="bk01pt12ch35.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="extensions.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bk01pt12ch37.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 35. Algorithms </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 37. Iterators</td></tr></table></div></body></html>