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1 | <?xml version="1.0" encoding="utf-8" ?> |
2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> | |
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6 | <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" /> | |
7 | <title>The MPL Reference Manual: max</title> | |
8 | <link rel="stylesheet" href="../style.css" type="text/css" /> | |
9 | </head> | |
10 | <body class="docframe refmanual"> | |
11 | <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./min.html" class="navigation-link">Prev</a> <a href="./sizeof.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./min.html" class="navigation-link">Back</a> <a href="./sizeof.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> | |
12 | <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="./max.html" class="navigation-link">max</a></td> | |
13 | </tr></table><div class="header-separator"></div> | |
14 | <div class="section" id="max"> | |
15 | <h1><a class="toc-backref" href="./miscellaneous.html#id1570">max</a></h1> | |
16 | <div class="section" id="id1198"> | |
17 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> | |
18 | <pre class="literal-block"> | |
19 | template< | |
20 | typename N1 | |
21 | , typename N2 | |
22 | > | |
23 | struct <a href="./max.html" class="identifier">max</a> | |
24 | { | |
25 | typedef <em>unspecified</em> type; | |
26 | }; | |
27 | </pre> | |
28 | </div> | |
29 | <div class="section" id="id1199"> | |
30 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> | |
31 | <p>Returns the larger of its two arguments.</p> | |
32 | </div> | |
33 | <div class="section" id="id1200"> | |
34 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> | |
35 | <pre class="literal-block"> | |
36 | #include <<a href="../../../../boost/mpl/min_max.hpp" class="header">boost/mpl/min_max.hpp</a>> | |
37 | </pre> | |
38 | </div> | |
39 | <div class="section" id="id1201"> | |
40 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> | |
41 | <p><a class="reference internal" href="./metafunction.html">Metafunction</a></p> | |
42 | </div> | |
43 | <div class="section" id="id1202"> | |
44 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> | |
45 | <table border="1" class="docutils table"> | |
46 | <colgroup> | |
47 | <col width="19%" /> | |
48 | <col width="25%" /> | |
49 | <col width="56%" /> | |
50 | </colgroup> | |
51 | <thead valign="bottom"> | |
52 | <tr><th class="head">Parameter</th> | |
53 | <th class="head">Requirement</th> | |
54 | <th class="head">Description</th> | |
55 | </tr> | |
56 | </thead> | |
57 | <tbody valign="top"> | |
58 | <tr><td><tt class="literal"><span class="pre">N1</span></tt>, <tt class="literal"><span class="pre">N2</span></tt></td> | |
59 | <td>Any type</td> | |
60 | <td>Types to compare.</td> | |
61 | </tr> | |
62 | </tbody> | |
63 | </table> | |
64 | </div> | |
65 | <div class="section" id="id1203"> | |
66 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> | |
67 | <p>For arbitrary types <tt class="literal"><span class="pre">x</span></tt> and <tt class="literal"><span class="pre">y</span></tt>:</p> | |
68 | <pre class="literal-block"> | |
69 | typedef <a href="./max.html" class="identifier">max</a><x,y>::type r; | |
70 | </pre> | |
71 | <table class="docutils field-list" frame="void" rules="none"> | |
72 | <col class="field-name" /> | |
73 | <col class="field-body" /> | |
74 | <tbody valign="top"> | |
75 | <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A type.</p> | |
76 | </td> | |
77 | </tr> | |
78 | <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> | |
79 | </td> | |
80 | </tr> | |
81 | <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> | |
82 | <pre class="last literal-block"> | |
83 | typedef <a href="./if.html" class="identifier">if_</a>< <a href="./less.html" class="identifier">less</a><x,y>,y,x >::type r; | |
84 | </pre> | |
85 | </td> | |
86 | </tr> | |
87 | </tbody> | |
88 | </table> | |
89 | </div> | |
90 | <div class="section" id="id1204"> | |
91 | <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> | |
92 | <p>Constant time.</p> | |
93 | </div> | |
94 | <div class="section" id="id1205"> | |
95 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> | |
96 | <pre class="literal-block"> | |
97 | typedef <a href="./fold.html" class="identifier">fold</a>< | |
98 | <a href="./vector-c.html" class="identifier">vector_c</a><int,1,7,0,-2,5,-1> | |
99 | , <a href="./int.html" class="identifier">int_</a><10> | |
100 | , <a href="./max.html" class="identifier">max</a><<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>> | |
101 | >::type r; | |
102 | ||
103 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< r, <a href="./int.html" class="identifier">int_</a><10> > )); | |
104 | </pre> | |
105 | </div> | |
106 | <div class="section" id="id1206"> | |
107 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> | |
108 | <p><a class="reference internal" href="./metafunctions.html">Metafunctions</a>, <a class="reference internal" href="./comparisons.html">comparison</a>, <a class="reference internal" href="./min.html">min</a>, <a class="reference internal" href="./less.html">less</a>, <a class="reference internal" href="./max-element.html">max_element</a></p> | |
109 | <!-- Metafunctions/Miscellaneous//sizeof_ |100 --> | |
110 | </div> | |
111 | </div> | |
112 | ||
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115 | <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> | |
116 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
117 | 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> | |
118 | </html> |