Planet
navi homePPSaboutscreenshotsdownloaddevelopmentforum

source: downloads/boost_1_34_1/doc/html/boost/hash.html @ 46

Last change on this file since 46 was 29, checked in by landauf, 17 years ago

updated boost from 1_33_1 to 1_34_1
File size: 4.7 KB
Line 
1<html>
2<head>
3<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
4<title>Struct template hash</title>
5<link rel="stylesheet" href="../boostbook.css" type="text/css">
6<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
7<link rel="start" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset">
8<link rel="up" href="../hash/reference.html#header.boost.functional.hash.hpp" title="Header &lt;boost/functional/hash.hpp&gt;">
9<link rel="prev" href="../hash/reference.html" title="Reference">
10<link rel="next" href="../id860619-bb.html" title="Struct hash&lt;bool&gt;">
11</head>
12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
13<table cellpadding="2" width="100%">
14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td>
15<td align="center"><a href="../../../index.htm">Home</a></td>
16<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
17<td align="center"><a href="../../../people/people.htm">People</a></td>
18<td align="center"><a href="../../../more/faq.htm">FAQ</a></td>
19<td align="center"><a href="../../../more/index.htm">More</a></td>
20</table>
21<hr>
22<div class="spirit-nav">
23<a accesskey="p" href="../hash/reference.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../hash/reference.html#header.boost.functional.hash.hpp"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="../id860619-bb.html"><img src="../images/next.png" alt="Next"></a>
24</div>
25<div class="refentry" lang="en">
26<a name="boost.hash"></a><div class="titlepage"></div>
27<div class="refnamediv">
28<h2><span class="refentrytitle">Struct template hash</span></h2>
29<p>boost::hash &#8212; A <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf" target="_top">TR1</a> compliant hash function object.</p>
30</div>
31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T&gt; 
33<span class="bold"><strong>struct</strong></span> hash : <span class="bold"><strong>public</strong></span> std::unary_function&lt;T, std::size_t&gt; {
34  <span class="type">std::size_t</span> <a href="hash.html#id838613-bb"><span class="bold"><strong>operator</strong></span>()</a>(T <span class="bold"><strong>const</strong></span>&amp;) <span class="bold"><strong>const</strong></span>;
35};</pre></div>
36<div class="refsect1" lang="en">
37<a name="id1221878"></a><h2>Description</h2>
38<pre class="literallayout"><span class="type">std::size_t</span> <a name="id838613-bb"></a><span class="bold"><strong>operator</strong></span>()(T <span class="bold"><strong>const</strong></span>&amp; val) <span class="bold"><strong>const</strong></span>;</pre>
39<div class="variablelist"><table border="0">
40<col align="left" valign="top">
41<tbody>
42<tr>
43<td>
44<span class="term">Returns:</span></td>
45<td>
46<p>
47            </p>
48<pre class="programlisting"><a href="hash_value.html" title="Function hash_value">hash_value</a>(val)</pre>
49<p>
50          </p>
51</td>
52</tr>
53<tr>
54<td>
55<span class="term">Notes:</span></td>
56<td>
57<p>
58              The call to <code class="computeroutput"><a href="hash_value.html" title="Function hash_value">hash_value</a></code>
59              is unqualified, so that custom overloads can be
60              found via argument dependent lookup.
61            </p>
62<p>
63              This is not defined when the macro <code class="computeroutput">BOOST_HASH_NO_EXTENSIONS</code>
64              is defined. The specializations are still defined, so only the specializations
65              required by TR1 are defined.
66            </p>
67</td>
68</tr>
69<tr>
70<td>
71<span class="term">Throws:</span></td>
72<td><p>
73            Only throws if
74            <code class="computeroutput"><a href="hash_value.html" title="Function hash_value">hash_value</a>(T)</code> throws.
75          </p></td>
76</tr>
77</tbody>
78</table></div>
79</div>
80</div>
81<table width="100%"><tr>
82<td align="left"></td>
83<td align="right"><small>Copyright © 2005, 2006 Daniel James</small></td>
84</tr></table>
85<hr>
86<div class="spirit-nav">
87<a accesskey="p" href="../hash/reference.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../hash/reference.html#header.boost.functional.hash.hpp"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="../id860619-bb.html"><img src="../images/next.png" alt="Next"></a>
88</div>
89</body>
90</html>
Note: See TracBrowser for help on using the repository browser.