PageRenderTime 14ms CodeModel.GetById 2ms app.highlight 8ms RepoModel.GetById 1ms app.codeStats 0ms

/Src/Dependencies/Boost/libs/phoenix/doc/html/phoenix/modules/statement/try__catch__statement.html

http://hadesmem.googlecode.com/
HTML | 89 lines | 89 code | 0 blank | 0 comment | 0 complexity | ab82af5974effa1958bf94110e41b5bb MD5 | raw file
 1<html>
 2<head>
 3<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
 4<title>try_ catch_ Statement</title>
 5<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
 6<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
 7<link rel="home" href="../../../index.html" title="Chapter&#160;1.&#160;Phoenix 3.0">
 8<link rel="up" href="../statement.html" title="Statement">
 9<link rel="prev" href="for_statement.html" title="for_ Statement">
10<link rel="next" href="throw_.html" title="throw_">
11</head>
12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
13<table cellpadding="2" width="100%"><tr>
14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
15<td align="center"><a href="../../../../../../../index.html">Home</a></td>
16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
20</tr></table>
21<hr>
22<div class="spirit-nav">
23<a accesskey="p" href="for_statement.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../statement.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="throw_.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
24</div>
25<div class="section">
26<div class="titlepage"><div><div><h4 class="title">
27<a name="phoenix.modules.statement.try__catch__statement"></a><a class="link" href="try__catch__statement.html" title="try_ catch_ Statement">try_
28        catch_ Statement</a>
29</h4></div></div></div>
30<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">statement</span><span class="special">/</span><span class="identifier">try_catch</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
31</pre>
32<p>
33          The syntax is:
34        </p>
35<pre class="programlisting"><span class="identifier">try_</span>
36<span class="special">[</span>
37    <span class="identifier">sequenced_statements</span>
38<span class="special">]</span>
39<span class="special">.</span><span class="identifier">catch_</span><span class="special">&lt;</span><span class="identifier">exception_type</span><span class="special">&gt;()</span>
40<span class="special">[</span>
41    <span class="identifier">sequenced_statements</span>
42<span class="special">]</span>
43<span class="special">...</span>
44<span class="special">.</span><span class="identifier">catch_all</span>
45<span class="special">[</span>
46    <span class="identifier">sequenced_statement</span>
47<span class="special">]</span>
48</pre>
49<p>
50          Note the usual underscore after try and catch, and the extra parentheses
51          required after the catch.
52        </p>
53<p>
54          Example: The following code calls the (lazy) function <code class="computeroutput"><span class="identifier">f</span></code>
55          for each element, and prints messages about different exception types it
56          catches.
57        </p>
58<pre class="programlisting"><span class="identifier">try_</span>
59<span class="special">[</span>
60    <span class="identifier">f</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">)</span>
61<span class="special">]</span>
62<span class="special">.</span><span class="identifier">catch_</span><span class="special">&lt;</span><span class="identifier">runtime_error</span><span class="special">&gt;()</span>
63<span class="special">[</span>
64    <span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">val</span><span class="special">(</span><span class="string">"caught runtime error or derived\n"</span><span class="special">)</span>
65<span class="special">]</span>
66<span class="special">.</span><span class="identifier">catch_</span><span class="special">&lt;</span><span class="identifier">exception</span><span class="special">&gt;()</span>
67<span class="special">[</span>
68    <span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">val</span><span class="special">(</span><span class="string">"caught exception or derived\n"</span><span class="special">)</span>
69<span class="special">]</span>
70<span class="special">.</span><span class="identifier">catch_all</span>
71<span class="special">[</span>
72    <span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">val</span><span class="special">(</span><span class="string">"caught some other type of exception\n"</span><span class="special">)</span>
73<span class="special">]</span>
74</pre>
75</div>
76<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
77<td align="left"></td>
78<td align="right"><div class="copyright-footer">Copyright &#169; 2002-2005, 2010 Joel de Guzman, Dan Marsden, Thomas Heller<p>
79        Distributed under the Boost Software License, Version 1.0. (See accompanying
80        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
81      </p>
82</div></td>
83</tr></table>
84<hr>
85<div class="spirit-nav">
86<a accesskey="p" href="for_statement.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../statement.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="throw_.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
87</div>
88</body>
89</html>