<?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" /> <title>The MPL Reference Manual: min</title> <link rel="stylesheet" href="../style.css" type="text/css" /> </head> <body class="docframe refmanual"> <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./numeric-cast.html" class="navigation-link">Prev</a> <a href="./max.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./numeric-cast.html" class="navigation-link">Back</a> <a href="./max.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./miscellaneous.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./metafunctions.html" class="navigation-link">Metafunctions</a> / <a href="./miscellaneous.html" class="navigation-link">Miscellaneous</a> / <a href="./min.html" class="navigation-link">min</a></td> </tr></table><div class="header-separator"></div> <div class="section" id="min"> <h1><a class="toc-backref" href="./miscellaneous.html#id1569">min</a></h1> <div class="section" id="id1189"> <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> <pre class="literal-block"> template< typename N1 , typename N2 > struct <a href="./min.html" class="identifier">min</a> { typedef <em>unspecified</em> type; }; </pre> </div> <div class="section" id="id1190"> <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> <p>Returns the smaller of its two arguments.</p> </div> <div class="section" id="id1191"> <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> <pre class="literal-block"> #include <<a href="../../../../boost/mpl/min_max.hpp" class="header">boost/mpl/min_max.hpp</a>> </pre> </div> <div class="section" id="id1192"> <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> <p><a class="reference internal" href="./metafunction.html">Metafunction</a></p> </div> <div class="section" id="id1193"> <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> <table border="1" class="docutils table"> <colgroup> <col width="19%" /> <col width="25%" /> <col width="56%" /> </colgroup> <thead valign="bottom"> <tr><th class="head">Parameter</th> <th class="head">Requirement</th> <th class="head">Description</th> </tr> </thead> <tbody valign="top"> <tr><td><tt class="literal"><span class="pre">N1</span></tt>, <tt class="literal"><span class="pre">N2</span></tt></td> <td>Any type</td> <td>Types to compare.</td> </tr> </tbody> </table> </div> <div class="section" id="id1194"> <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> <p>For arbitrary types <tt class="literal"><span class="pre">x</span></tt> and <tt class="literal"><span class="pre">y</span></tt>:</p> <pre class="literal-block"> typedef <a href="./min.html" class="identifier">min</a><x,y>::type r; </pre> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A type.</p> </td> </tr> <tr class="field"><th class="field-name">Precondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre"><a href="./less.html" class="identifier">less</a><x,y>::value</span></tt> is a well-formed integral constant expression.</p> </td> </tr> <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> <pre class="last literal-block"> typedef <a href="./if.html" class="identifier">if_</a>< <a href="./less.html" class="identifier">less</a><x,y>,x,y >::type r; </pre> </td> </tr> </tbody> </table> </div> <div class="section" id="id1195"> <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> <p>Constant time.</p> </div> <div class="section" id="id1196"> <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> <pre class="literal-block"> typedef <a href="./fold.html" class="identifier">fold</a>< <a href="./vector-c.html" class="identifier">vector_c</a><int,1,7,0,-2,5,-1> , <a href="./int.html" class="identifier">int_</a><-10> , <a href="./min.html" class="identifier">min</a><<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>> >::type r; <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< r, <a href="./int.html" class="identifier">int_</a><-10> > )); </pre> </div> <div class="section" id="id1197"> <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> <p><a class="reference internal" href="./metafunctions.html">Metafunctions</a>, <a class="reference internal" href="./comparisons.html">comparison</a>, <a class="reference internal" href="./max.html">max</a>, <a class="reference internal" href="./less.html">less</a>, <a class="reference internal" href="./min-element.html">min_element</a></p> <!-- Metafunctions/Miscellaneous//max |90 --> </div> </div> <div class="footer-separator"></div> <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./numeric-cast.html" class="navigation-link">Prev</a> <a href="./max.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./numeric-cast.html" class="navigation-link">Back</a> <a href="./max.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./miscellaneous.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body> </html>