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40 | <div class="contents"> | |
41 | <h1>io_error.hpp</h1><a href="io__error_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> | |
42 | <a name="l00002"></a>00002 <span class="comment"> Copyright 2005-2007 Adobe Systems Incorporated</span> | |
43 | <a name="l00003"></a>00003 <span class="comment"> </span> | |
44 | <a name="l00004"></a>00004 <span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span> | |
45 | <a name="l00005"></a>00005 <span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span> | |
46 | <a name="l00006"></a>00006 <span class="comment"> http://www.boost.org/LICENSE_1_0.txt).</span> | |
47 | <a name="l00007"></a>00007 <span class="comment"></span> | |
48 | <a name="l00008"></a>00008 <span class="comment"> See http://opensource.adobe.com/gil for most recent version including documentation.</span> | |
49 | <a name="l00009"></a>00009 <span class="comment">*/</span> | |
50 | <a name="l00010"></a>00010 <span class="comment">/*************************************************************************************************/</span> | |
51 | <a name="l00011"></a>00011 | |
52 | <a name="l00012"></a>00012 <span class="preprocessor">#ifndef GIL_IO_ERROR_H</span> | |
53 | <a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#define GIL_IO_ERROR_H</span> | |
54 | <a name="l00014"></a>00014 <span class="preprocessor"></span> | |
55 | <a name="l00020"></a>00020 | |
56 | <a name="l00021"></a>00021 <span class="preprocessor">#include <ios></span> | |
57 | <a name="l00022"></a>00022 <span class="preprocessor">#include "../../gil_config.hpp"</span> | |
58 | <a name="l00023"></a>00023 <span class="preprocessor">#include <boost/shared_ptr.hpp></span> | |
59 | <a name="l00024"></a>00024 | |
60 | <a name="l00025"></a>00025 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil { | |
61 | <a name="l00026"></a>00026 | |
62 | <a name="l00027"></a>00027 <span class="keyword">inline</span> <span class="keywordtype">void</span> io_error(<span class="keyword">const</span> <span class="keywordtype">char</span>* descr) { <span class="keywordflow">throw</span> std::ios_base::failure(descr); } | |
63 | <a name="l00028"></a>00028 <span class="keyword">inline</span> <span class="keywordtype">void</span> io_error_if(<span class="keywordtype">bool</span> expr, <span class="keyword">const</span> <span class="keywordtype">char</span>* descr=<span class="stringliteral">""</span>) { <span class="keywordflow">if</span> (expr) io_error(descr); } | |
64 | <a name="l00029"></a>00029 | |
65 | <a name="l00030"></a>00030 <span class="keyword">namespace </span>detail { | |
66 | <a name="l00031"></a>00031 <span class="keyword">class </span>file_mgr { | |
67 | <a name="l00032"></a>00032 <span class="keyword">protected</span>: | |
68 | <a name="l00033"></a>00033 shared_ptr<FILE> _fp; | |
69 | <a name="l00034"></a>00034 | |
70 | <a name="l00035"></a>00035 <span class="keyword">struct </span>null_deleter { <span class="keywordtype">void</span> operator()(<span class="keywordtype">void</span> <span class="keyword">const</span>*)<span class="keyword"> const </span>{} }; | |
71 | <a name="l00036"></a>00036 file_mgr(FILE* file) : _fp(file, null_deleter()) {} | |
72 | <a name="l00037"></a>00037 | |
73 | <a name="l00038"></a>00038 file_mgr(<span class="keyword">const</span> <span class="keywordtype">char</span>* filename, <span class="keyword">const</span> <span class="keywordtype">char</span>* flags) { | |
74 | <a name="l00039"></a>00039 FILE* fp; | |
75 | <a name="l00040"></a>00040 io_error_if((fp=fopen(filename,flags))==NULL, <span class="stringliteral">"file_mgr: failed to open file"</span>); | |
76 | <a name="l00041"></a>00041 _fp=shared_ptr<FILE>(fp,fclose); | |
77 | <a name="l00042"></a>00042 } | |
78 | <a name="l00043"></a>00043 | |
79 | <a name="l00044"></a>00044 <span class="keyword">public</span>: | |
80 | <a name="l00045"></a>00045 FILE* <span class="keyword">get</span>() { <span class="keywordflow">return</span> _fp.get(); } | |
81 | <a name="l00046"></a>00046 }; | |
82 | <a name="l00047"></a>00047 } | |
83 | <a name="l00048"></a>00048 | |
84 | <a name="l00049"></a>00049 } } <span class="comment">// namespace boost::gil</span> | |
85 | <a name="l00050"></a>00050 | |
86 | <a name="l00051"></a>00051 <span class="preprocessor">#endif</span> | |
87 | </pre></div></div> | |
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