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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"> | |
| 3 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> | |
| 4 | <head> | |
| 5 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| 6 | <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" /> | |
| 7 | <title>The MPL Reference Manual: greater</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="./less-equal.html" class="navigation-link">Prev</a> <a href="./greater-equal.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./less-equal.html" class="navigation-link">Back</a> <a href="./greater-equal.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./comparisons.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="./comparisons.html" class="navigation-link">Comparisons</a> / <a href="./greater.html" class="navigation-link">greater</a></td> | |
| 13 | </tr></table><div class="header-separator"></div> | |
| 14 | <div class="section" id="greater"> | |
| 15 | <h1><a class="toc-backref" href="./comparisons.html#id1545">greater</a></h1> | |
| 16 | <div class="section" id="id1032"> | |
| 17 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> | |
| 18 | <pre class="literal-block"> | |
| 19 | template< | |
| 20 | typename T1 | |
| 21 | , typename T2 | |
| 22 | > | |
| 23 | struct <a href="./greater.html" class="identifier">greater</a> | |
| 24 | { | |
| 25 | typedef <em>unspecified</em> type; | |
| 26 | }; | |
| 27 | </pre> | |
| 28 | </div> | |
| 29 | <div class="section" id="id1033"> | |
| 30 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> | |
| 31 | <p>Returns a true-valued <a class="reference internal" href="./integral-constant.html">Integral Constant</a> if <tt class="literal"><span class="pre">T1</span></tt> is greater than <tt class="literal"><span class="pre">T2</span></tt>.</p> | |
| 32 | </div> | |
| 33 | <div class="section" id="id1034"> | |
| 34 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> | |
| 35 | <pre class="literal-block"> | |
| 36 | #include <<a href="../../../../boost/mpl/greater.hpp" class="header">boost/mpl/greater.hpp</a>> | |
| 37 | #include <<a href="../../../../boost/mpl/comparison.hpp" class="header">boost/mpl/comparison.hpp</a>> | |
| 38 | </pre> | |
| 39 | </div> | |
| 40 | <div class="section" id="id1035"> | |
| 41 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> | |
| 42 | <p><a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a></p> | |
| 43 | </div> | |
| 44 | <div class="section" id="id1036"> | |
| 45 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> | |
| 46 | <table border="1" class="docutils table"> | |
| 47 | <colgroup> | |
| 48 | <col width="17%" /> | |
| 49 | <col width="30%" /> | |
| 50 | <col width="53%" /> | |
| 51 | </colgroup> | |
| 52 | <thead valign="bottom"> | |
| 53 | <tr><th class="head">Parameter</th> | |
| 54 | <th class="head">Requirement</th> | |
| 55 | <th class="head">Description</th> | |
| 56 | </tr> | |
| 57 | </thead> | |
| 58 | <tbody valign="top"> | |
| 59 | <tr><td><tt class="literal"><span class="pre">T1</span></tt>, <tt class="literal"><span class="pre">T2</span></tt></td> | |
| 60 | <td><a class="reference internal" href="./integral-constant.html">Integral Constant</a></td> | |
| 61 | <td>Operation's arguments.</td> | |
| 62 | </tr> | |
| 63 | </tbody> | |
| 64 | </table> | |
| 65 | <p>[<em>Note:</em> The requirements listed in this specification | |
| 66 | are the ones imposed by the default implementation. See <a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a> concept | |
| 67 | for the details on how to provide an implementation for a user-defined numeric type | |
| 68 | that does not satisfy the <a class="reference internal" href="./integral-constant.html">Integral Constant</a> requirements. — <em>end note</em>]</p> | |
| 69 | </div> | |
| 70 | <div class="section" id="id1037"> | |
| 71 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> | |
| 72 | <p>For any <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s <tt class="literal"><span class="pre">c1</span></tt> and <tt class="literal"><span class="pre">c2</span></tt>:</p> | |
| 73 | <pre class="literal-block"> | |
| 74 | typedef <a href="./greater.html" class="identifier">greater</a><c1,c2>::type r; | |
| 75 | </pre> | |
| 76 | <table class="docutils field-list" frame="void" rules="none"> | |
| 77 | <col class="field-name" /> | |
| 78 | <col class="field-body" /> | |
| 79 | <tbody valign="top"> | |
| 80 | <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p> | |
| 81 | </td> | |
| 82 | </tr> | |
| 83 | <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> | |
| 84 | <pre class="last literal-block"> | |
| 85 | typedef <a href="./bool.html" class="identifier">bool_</a>< (c1::value < c2::value) > r; | |
| 86 | </pre> | |
| 87 | </td> | |
| 88 | </tr> | |
| 89 | </tbody> | |
| 90 | </table> | |
| 91 | <!-- .......................................................................... --> | |
| 92 | <pre class="literal-block"> | |
| 93 | typedef <a href="./greater.html" class="identifier">greater</a><c1,c2> r; | |
| 94 | </pre> | |
| 95 | <table class="docutils field-list" frame="void" rules="none"> | |
| 96 | <col class="field-name" /> | |
| 97 | <col class="field-body" /> | |
| 98 | <tbody valign="top"> | |
| 99 | <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p> | |
| 100 | </td> | |
| 101 | </tr> | |
| 102 | <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> | |
| 103 | <pre class="last literal-block"> | |
| 104 | struct r : <a href="./greater.html" class="identifier">greater</a><c1,c2>::type {}; | |
| 105 | </pre> | |
| 106 | </td> | |
| 107 | </tr> | |
| 108 | </tbody> | |
| 109 | </table> | |
| 110 | </div> | |
| 111 | <div class="section" id="id1038"> | |
| 112 | <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> | |
| 113 | <p>Amortized constant time.</p> | |
| 114 | </div> | |
| 115 | <div class="section" id="id1039"> | |
| 116 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> | |
| 117 | <pre class="literal-block"> | |
| 118 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./greater.html" class="identifier">greater</a>< <a href="./int.html" class="identifier">int_</a><10>, <a href="./int.html" class="identifier">int_</a><0> > )); | |
| 119 | <a href="./assert-not.html" class="identifier">BOOST_MPL_ASSERT_NOT</a>(( <a href="./greater.html" class="identifier">greater</a>< <a href="./long.html" class="identifier">long_</a><0>, <a href="./int.html" class="identifier">int_</a><10> > )); | |
| 120 | <a href="./assert-not.html" class="identifier">BOOST_MPL_ASSERT_NOT</a>(( <a href="./greater.html" class="identifier">greater</a>< <a href="./long.html" class="identifier">long_</a><10>, <a href="./int.html" class="identifier">int_</a><10> > )); | |
| 121 | </pre> | |
| 122 | </div> | |
| 123 | <div class="section" id="id1040"> | |
| 124 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> | |
| 125 | <p><a class="reference internal" href="./comparisons.html">Comparisons</a>, <a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a>, <a class="reference internal" href="./numeric-cast.html">numeric_cast</a>, <a class="reference internal" href="./greater-equal.html">greater_equal</a>, <a class="reference internal" href="./less.html">less</a>, <a class="reference internal" href="./equal-to.html">equal_to</a></p> | |
| 126 | <!-- Metafunctions/Comparisons//greater_equal |40 --> | |
| 127 | </div> | |
| 128 | </div> | |
| 129 | ||
| 130 | <div class="footer-separator"></div> | |
| 131 | <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./less-equal.html" class="navigation-link">Prev</a> <a href="./greater-equal.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./less-equal.html" class="navigation-link">Back</a> <a href="./greater-equal.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./comparisons.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> | |
| 132 | <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> | |
| 133 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 134 | 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> | |
| 135 | </html> |