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<h1>errors.c</h1><a href="errors_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> This file is part of PolyLib.</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> PolyLib is free software: you can redistribute it and/or modify</span>
<a name="l00005"></a>00005 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00006"></a>00006 <span class="comment"> the Free Software Foundation, either version 3 of the License, or</span>
<a name="l00007"></a>00007 <span class="comment"> (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> PolyLib is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00012"></a>00012 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with PolyLib. If not, see <http://www.gnu.org/licenses/>.</span>
<a name="l00016"></a>00016 <span class="comment">*/</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="comment">/*</span>
<a name="l00019"></a>00019 <span class="comment"> $Id: errors.c,v 1.6 2006/03/15 19:59:37 verdoolaege Exp $</span>
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment"> Exception management.</span>
<a name="l00022"></a>00022 <span class="comment"> See "arithmetic_errors.h".</span>
<a name="l00023"></a>00023 <span class="comment"></span>
<a name="l00024"></a>00024 <span class="comment"> $Log: errors.c,v $</span>
<a name="l00025"></a>00025 <span class="comment"> Revision 1.6 2006/03/15 19:59:37 verdoolaege</span>
<a name="l00026"></a>00026 <span class="comment"> arith: add some missing consts</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment"> Revision 1.5 2004/08/31 18:01:56 verdoolaege</span>
<a name="l00029"></a>00029 <span class="comment"> remove warning</span>
<a name="l00030"></a>00030 <span class="comment"></span>
<a name="l00031"></a>00031 <span class="comment"> Revision 1.4 2004/02/11 10:19:54 verdoolaege</span>
<a name="l00032"></a>00032 <span class="comment"> add const qualifier</span>
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment"> Revision 1.3 2004/02/08 21:53:27 kienhuis</span>
<a name="l00035"></a>00035 <span class="comment"> Update from Fabien Coelho, via Bart Kienhuis</span>
<a name="l00036"></a>00036 <span class="comment"></span>
<a name="l00037"></a>00037 <span class="comment"> I've updated here in the C3/Linear library the arithmetic_error</span>
<a name="l00038"></a>00038 <span class="comment"> package that I developped (with others) to handle exceptions in C.</span>
<a name="l00039"></a>00039 <span class="comment"> It adds a simple callback feature which is needed for pips here.</span>
<a name="l00040"></a>00040 <span class="comment"> If you do not use it, it should not harm;-)</span>
<a name="l00041"></a>00041 <span class="comment"></span>
<a name="l00042"></a>00042 <span class="comment"> Revision 1.27 2003/09/04 09:40:37 coelho</span>
<a name="l00043"></a>00043 <span class="comment"> init added.</span>
<a name="l00044"></a>00044 <span class="comment"> verbosity mask added.</span>
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment"> Revision 1.26 2003/09/03 14:05:20 coelho</span>
<a name="l00047"></a>00047 <span class="comment"> push/pop callbacks called.</span>
<a name="l00048"></a>00048 <span class="comment"></span>
<a name="l00049"></a>00049 <span class="comment"> Revision 1.20 2003/08/18 09:55:09 coelho</span>
<a name="l00050"></a>00050 <span class="comment"> get_exception_name added...</span>
<a name="l00051"></a>00051 <span class="comment"></span>
<a name="l00052"></a>00052 <span class="comment"> Revision 1.19 2003/06/13 13:59:07 coelho</span>
<a name="l00053"></a>00053 <span class="comment"> const out.</span>
<a name="l00054"></a>00054 <span class="comment"></span>
<a name="l00055"></a>00055 <span class="comment"> Revision 1.18 2003/06/13 13:54:47 coelho</span>
<a name="l00056"></a>00056 <span class="comment"> hop.</span>
<a name="l00057"></a>00057 <span class="comment"></span>
<a name="l00058"></a>00058 <span class="comment"> Revision 1.17 2002/04/02 08:44:54 coelho</span>
<a name="l00059"></a>00059 <span class="comment"> timeout_error ajoute.</span>
<a name="l00060"></a>00060 <span class="comment"></span>
<a name="l00061"></a>00061 <span class="comment"> Revision 1.16 2000/10/27 13:26:03 ancourt</span>
<a name="l00062"></a>00062 <span class="comment"> exception_thrown -> linear_number_of_exception_thrown</span>
<a name="l00063"></a>00063 <span class="comment"></span>
<a name="l00064"></a>00064 <span class="comment"> Revision 1.15 2000/07/27 15:21:55 coelho</span>
<a name="l00065"></a>00065 <span class="comment"> message++</span>
<a name="l00066"></a>00066 <span class="comment"></span>
<a name="l00067"></a>00067 <span class="comment"> Revision 1.14 2000/07/27 14:59:59 coelho</span>
<a name="l00068"></a>00068 <span class="comment"> trace added.</span>
<a name="l00069"></a>00069 <span class="comment"></span>
<a name="l00070"></a>00070 <span class="comment"> Revision 1.13 2000/07/26 08:41:23 coelho</span>
<a name="l00071"></a>00071 <span class="comment"> the_last_just_thrown_exception management added.</span>
<a name="l00072"></a>00072 <span class="comment"></span>
<a name="l00073"></a>00073 <span class="comment"> Revision 1.12 1998/10/26 18:48:34 coelho</span>
<a name="l00074"></a>00074 <span class="comment"> message++.</span>
<a name="l00075"></a>00075 <span class="comment"></span>
<a name="l00076"></a>00076 <span class="comment"> Revision 1.11 1998/10/26 14:38:06 coelho</span>
<a name="l00077"></a>00077 <span class="comment"> constants back in.</span>
<a name="l00078"></a>00078 <span class="comment"></span>
<a name="l00079"></a>00079 <span class="comment"> Revision 1.10 1998/10/26 14:35:47 coelho</span>
<a name="l00080"></a>00080 <span class="comment"> constants in .h.</span>
<a name="l00081"></a>00081 <span class="comment"></span>
<a name="l00082"></a>00082 <span class="comment"> Revision 1.9 1998/10/24 15:36:22 coelho</span>
<a name="l00083"></a>00083 <span class="comment"> better exception error messages...</span>
<a name="l00084"></a>00084 <span class="comment"></span>
<a name="l00085"></a>00085 <span class="comment"> Revision 1.8 1998/10/24 15:19:17 coelho</span>
<a name="l00086"></a>00086 <span class="comment"> more verbose throw...</span>
<a name="l00087"></a>00087 <span class="comment"></span>
<a name="l00088"></a>00088 <span class="comment"> Revision 1.7 1998/10/24 14:31:13 coelho</span>
<a name="l00089"></a>00089 <span class="comment"> new stack implementation.</span>
<a name="l00090"></a>00090 <span class="comment"> checks for matching catch/uncatch.</span>
<a name="l00091"></a>00091 <span class="comment"> debug mode.</span>
<a name="l00092"></a>00092 <span class="comment"></span>
<a name="l00093"></a>00093 <span class="comment"> Revision 1.6 1998/10/24 09:31:06 coelho</span>
<a name="l00094"></a>00094 <span class="comment"> RCS headers.</span>
<a name="l00095"></a>00095 <span class="comment"> 'const' tried.</span>
<a name="l00096"></a>00096 <span class="comment"></span>
<a name="l00097"></a>00097 <span class="comment">*/</span>
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="preprocessor">#include <stdio.h></span>
<a name="l00100"></a>00100 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00101"></a>00101 <span class="preprocessor">#include <string.h></span>
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="preprocessor">#include "<a class="code" href="include_2polylib_2arithmetique_8h.html">arithmetique.h</a>"</span>
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="comment">/* global constants to designate exceptions.</span>
<a name="l00106"></a>00106 <span class="comment"> to be put in the type field bellow.</span>
<a name="l00107"></a>00107 <span class="comment"> cproto 4.6 does not line 'const'...</span>
<a name="l00108"></a>00108 <span class="comment">*/</span>
<a name="l00109"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#af74135a8750c28205f819842ae8be9c9">00109</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetique_8h.html#af74135a8750c28205f819842ae8be9c9">overflow_error</a> = 1;
<a name="l00110"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a381d67b7ee03ff84c242d6f342fa063c">00110</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a381d67b7ee03ff84c242d6f342fa063c">simplex_arithmetic_error</a> = 2;
<a name="l00111"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a18b35523d2702706b86f2ab8ae2393d2">00111</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a18b35523d2702706b86f2ab8ae2393d2">user_exception_error</a> = 4;
<a name="l00112"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a3806d9a2c0134fd8bef8c192341a8954">00112</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a3806d9a2c0134fd8bef8c192341a8954">parser_exception_error</a> = 8;
<a name="l00113"></a><a class="code" href="errors_8c.html#a3cae90a91b95e5365e192179877cccf9">00113</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#a3cae90a91b95e5365e192179877cccf9">timeout_error</a> = 16;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">/* catch all */</span>
<a name="l00116"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a3fbedc713824754a33dd94278851fe70">00116</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a3fbedc713824754a33dd94278851fe70">any_exception_error</a> = ~0;
<a name="l00117"></a>00117
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="comment">/*</span>
<a name="l00120"></a>00120 <span class="comment"> * On a few systems, type boolean and/or its values FALSE, TRUE may appear</span>
<a name="l00121"></a>00121 <span class="comment"> * in standard header files. Or you may have conflicts with application-</span>
<a name="l00122"></a>00122 <span class="comment"> * specific header files that you want to include together with these files.</span>
<a name="l00123"></a>00123 <span class="comment"> * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.</span>
<a name="l00124"></a>00124 <span class="comment"> */</span>
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="preprocessor">#ifndef HAVE_BOOLEAN</span>
<a name="l00127"></a><a class="code" href="errors_8c.html#a621c38f1f10a1c565d897e3178b16d6e">00127</a> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#a621c38f1f10a1c565d897e3178b16d6e">boolean</a>;
<a name="l00128"></a>00128 <span class="preprocessor">#endif</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span><span class="preprocessor">#ifndef FALSE </span><span class="comment">/* in case these macros already exist */</span>
<a name="l00130"></a><a class="code" href="errors_8c.html#aa93f0eb578d23995850d61f7d61c55c1">00130</a> <span class="preprocessor">#define FALSE 0 </span><span class="comment">/* values of boolean */</span>
<a name="l00131"></a>00131 <span class="preprocessor">#endif</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span><span class="preprocessor">#ifndef TRUE</span>
<a name="l00133"></a><a class="code" href="errors_8c.html#aa8cecfc5c5c054d2875c03e77b7be15d">00133</a> <span class="preprocessor"></span><span class="preprocessor">#define TRUE 1</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span>
<a name="l00136"></a><a class="code" href="errors_8c.html#a79edc2c9a0ce7b3159417f9130a14def">00136</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="errors_8c.html#a79edc2c9a0ce7b3159417f9130a14def">get_exception_name</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> exception)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (exception==<a class="code" href="source_2arith_2arithmetique_8h.html#af74135a8750c28205f819842ae8be9c9">overflow_error</a>)
<a name="l00139"></a>00139 <span class="keywordflow">return</span> <span class="stringliteral">"overflow_error exception"</span>;
<a name="l00140"></a>00140 <span class="keywordflow">if</span> (exception==<a class="code" href="source_2arith_2arithmetique_8h.html#a381d67b7ee03ff84c242d6f342fa063c">simplex_arithmetic_error</a>)
<a name="l00141"></a>00141 <span class="keywordflow">return</span> <span class="stringliteral">"simplex_arithmetic_error exception"</span>;
<a name="l00142"></a>00142 <span class="keywordflow">if</span> (exception==<a class="code" href="source_2arith_2arithmetique_8h.html#a18b35523d2702706b86f2ab8ae2393d2">user_exception_error</a>)
<a name="l00143"></a>00143 <span class="keywordflow">return</span> <span class="stringliteral">"user_exception_error exception"</span>;
<a name="l00144"></a>00144 <span class="keywordflow">if</span> (exception==<a class="code" href="source_2arith_2arithmetique_8h.html#a3806d9a2c0134fd8bef8c192341a8954">parser_exception_error</a>)
<a name="l00145"></a>00145 <span class="keywordflow">return</span> <span class="stringliteral">"parser_exception_error exception"</span>;
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (exception==<a class="code" href="errors_8c.html#a3cae90a91b95e5365e192179877cccf9">timeout_error</a>)
<a name="l00147"></a>00147 <span class="keywordflow">return</span> <span class="stringliteral">"timeout_error exception"</span>;
<a name="l00148"></a>00148 <span class="keywordflow">if</span> (exception==<a class="code" href="source_2arith_2arithmetique_8h.html#a3fbedc713824754a33dd94278851fe70">any_exception_error</a>)
<a name="l00149"></a>00149 <span class="keywordflow">return</span> <span class="stringliteral">"all exceptions mask"</span>;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordflow">return</span> <span class="stringliteral">"unknown or mixed exception"</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="comment">/* keep track of last thrown exception for RETHROW()</span>
<a name="l00155"></a>00155 <span class="comment"> */</span>
<a name="l00156"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a9dbd1094abce0128b2995c91d701349d">00156</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="source_2arith_2arithmetic__errors_8h.html#a9dbd1094abce0128b2995c91d701349d">the_last_just_thrown_exception</a> = 0;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">/* whether to run in debug mode (that is to trace catch/uncatch/throw)</span>
<a name="l00159"></a>00159 <span class="comment"> */</span>
<a name="l00160"></a><a class="code" href="errors_8c.html#a0471cbbdd66a5ee1fa3a459878c756be">00160</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#a0471cbbdd66a5ee1fa3a459878c756be">linear_exception_debug_mode</a> = <a class="code" href="errors_8c.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a>;
<a name="l00161"></a><a class="code" href="errors_8c.html#a3e54f04e8bd9d204f2ad4dcd32ac744f">00161</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#a3e54f04e8bd9d204f2ad4dcd32ac744f">linear_exception_verbose</a> = 1 | 2 | 16 ;
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="comment">/* A structure for the exception stack.</span>
<a name="l00164"></a>00164 <span class="comment"> */</span>
<a name="l00165"></a><a class="code" href="structlinear__exception__holder.html">00165</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <span class="comment">/* exception type.</span>
<a name="l00168"></a>00168 <span class="comment"> */</span>
<a name="l00169"></a><a class="code" href="structlinear__exception__holder.html#af58917e56c6831b227e006673710fe5d">00169</a> <span class="keywordtype">int</span> what;
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="comment">/* where to jump to.</span>
<a name="l00172"></a>00172 <span class="comment"> */</span>
<a name="l00173"></a><a class="code" href="structlinear__exception__holder.html#ad9a2b584f896181a0578b05c6cb7cc3e">00173</a> jmp_buf where;
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="comment">/* location of the CATCH to be matched against the UNCATCH.</span>
<a name="l00176"></a>00176 <span class="comment"> */</span>
<a name="l00177"></a><a class="code" href="structlinear__exception__holder.html#afcc50c683b77f6a21e07b49ac2bc81f3">00177</a> <span class="keyword">const</span> <span class="keywordtype">char</span> * function;
<a name="l00178"></a><a class="code" href="structlinear__exception__holder.html#a4da979c2531ecea486a511e6540c031a">00178</a> <span class="keyword">const</span> <span class="keywordtype">char</span> * file;
<a name="l00179"></a><a class="code" href="structlinear__exception__holder.html#a03fe66cae813ea2b3328f04878aec61b">00179</a> <span class="keywordtype">int</span> line;
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181 <a class="code" href="structlinear__exception__holder.html">linear_exception_holder</a>;
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="comment">/* exception stack.</span>
<a name="l00184"></a>00184 <span class="comment"> maximum extension.</span>
<a name="l00185"></a>00185 <span class="comment"> current index (next available bucket)</span>
<a name="l00186"></a>00186 <span class="comment"> */</span>
<a name="l00187"></a><a class="code" href="errors_8c.html#aaec70e82a04c1102db5789b0c8092055">00187</a> <span class="preprocessor">#define MAX_STACKED_CONTEXTS 64</span>
<a name="l00188"></a><a class="code" href="errors_8c.html#ae7d6c7530e7505f175ee1efaf0dd33e1">00188</a> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="structlinear__exception__holder.html">linear_exception_holder</a> <a class="code" href="errors_8c.html#ae7d6c7530e7505f175ee1efaf0dd33e1">exception_stack</a>[<a class="code" href="errors_8c.html#aaec70e82a04c1102db5789b0c8092055">MAX_STACKED_CONTEXTS</a>];
<a name="l00189"></a><a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">00189</a> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a> = 0;
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="comment">/* callbacks...</span>
<a name="l00192"></a>00192 <span class="comment"> */</span>
<a name="l00193"></a><a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">00193</a> <span class="keyword">static</span> <a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> <a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a> = NULL;
<a name="l00194"></a><a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">00194</a> <span class="keyword">static</span> <a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a> = NULL;
<a name="l00195"></a>00195
<a name="l00196"></a><a class="code" href="errors_8c.html#a93de4c04224b53c462a8bd9242edd3ed">00196</a> <span class="keywordtype">void</span> <a class="code" href="errors_8c.html#a93de4c04224b53c462a8bd9242edd3ed">set_exception_callbacks</a>(<a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> push,
<a name="l00197"></a>00197 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> pop)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a>!=NULL || <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>!=NULL)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 fprintf(stderr, <span class="stringliteral">"exception callbacks already defined! (%p, %p)\n"</span>,
<a name="l00202"></a>00202 <a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a>, <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>);
<a name="l00203"></a>00203 abort();
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a> = push;
<a name="l00207"></a>00207 <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a> = pop;
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="comment">/* total number of exceptions thrown, for statistics.</span>
<a name="l00211"></a>00211 <span class="comment"> */</span>
<a name="l00212"></a><a class="code" href="errors_8c.html#a3313c41a656ee03e88a9d00234cfc5ec">00212</a> <span class="keywordtype">int</span> <a class="code" href="errors_8c.html#a3313c41a656ee03e88a9d00234cfc5ec">linear_number_of_exception_thrown</a> = 0;
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="comment">/* dump stack</span>
<a name="l00215"></a>00215 <span class="comment"> */</span>
<a name="l00216"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a95032703f9a53198ae5f188a05836557">00216</a> <span class="keywordtype">void</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a95032703f9a53198ae5f188a05836557">dump_exception_stack_to_file</a>(FILE * f)
<a name="l00217"></a>00217 {
<a name="l00218"></a>00218 <span class="keywordtype">int</span> i;
<a name="l00219"></a>00219 fprintf(f, <span class="stringliteral">"[dump_exception_stack_to_file] size=%d\n"</span>, <a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>);
<a name="l00220"></a>00220 <span class="keywordflow">for</span> (i=0; i<<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>; i++)
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 fprintf(f,
<a name="l00223"></a>00223 <span class="stringliteral">"%d: [%s:%d in %s (%d)]\n"</span>,
<a name="l00224"></a>00224 i,
<a name="l00225"></a>00225 exception_stack[i].file,
<a name="l00226"></a>00226 exception_stack[i].line,
<a name="l00227"></a>00227 exception_stack[i].function,
<a name="l00228"></a>00228 exception_stack[i].what);
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230 fprintf(f, <span class="stringliteral">"\n"</span>);
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232
<a name="l00233"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">00233</a> <span class="keywordtype">void</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">dump_exception_stack</a>()
<a name="l00234"></a>00234 {
<a name="l00235"></a>00235 <a class="code" href="source_2arith_2arithmetique_8h.html#a95032703f9a53198ae5f188a05836557">dump_exception_stack_to_file</a>(stderr);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a><a class="code" href="errors_8c.html#a8d4a2127a1edadca61c0631735922769">00238</a> <span class="preprocessor">#define exception_debug_message(type) \</span>
<a name="l00239"></a>00239 <span class="preprocessor"> fprintf(stderr, "%s[%s:%d %s (%d)/%d]\n", \</span>
<a name="l00240"></a>00240 <span class="preprocessor"> type, file, line, function, what, exception_index) </span>
<a name="l00241"></a>00241 <span class="preprocessor"></span>
<a name="l00242"></a><a class="code" href="errors_8c.html#a82fa865508693149b63d670fa7d7c438">00242</a> <span class="preprocessor">#define exception_debug_trace(type) \</span>
<a name="l00243"></a>00243 <span class="preprocessor"> if (linear_exception_debug_mode) { exception_debug_message(type); }</span>
<a name="l00244"></a>00244 <span class="preprocessor"></span>
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="comment">/* push a what exception on stack.</span>
<a name="l00247"></a>00247 <span class="comment"> */</span>
<a name="l00248"></a>00248 jmp_buf *
<a name="l00249"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a6c4868122de3ac9f2dddafc35d583021">00249</a> <a class="code" href="source_2arith_2arithmetique_8h.html#a6c4868122de3ac9f2dddafc35d583021">push_exception_on_stack</a>(
<a name="l00250"></a>00250 <span class="keywordtype">int</span> what,
<a name="l00251"></a>00251 <span class="keyword">const</span> <span class="keywordtype">char</span> * function,
<a name="l00252"></a>00252 <span class="keyword">const</span> <span class="keywordtype">char</span> * file,
<a name="l00253"></a>00253 <span class="keywordtype">int</span> line)
<a name="l00254"></a>00254 {
<a name="l00255"></a>00255 <a class="code" href="errors_8c.html#a82fa865508693149b63d670fa7d7c438">exception_debug_trace</a>(<span class="stringliteral">"PUSH "</span>);
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>==<a class="code" href="errors_8c.html#aaec70e82a04c1102db5789b0c8092055">MAX_STACKED_CONTEXTS</a>)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 <a class="code" href="errors_8c.html#a8d4a2127a1edadca61c0631735922769">exception_debug_message</a>(<span class="stringliteral">"push"</span>);
<a name="l00260"></a>00260 fprintf(stderr, <span class="stringliteral">"exception stack overflow\n"</span>);
<a name="l00261"></a>00261 <a class="code" href="source_2arith_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">dump_exception_stack</a>();
<a name="l00262"></a>00262 abort();
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a>) <a class="code" href="errors_8c.html#a949dce609af01654ccefedf9473eac29">push_callback</a>(file, function, line);
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#a9dbd1094abce0128b2995c91d701349d">the_last_just_thrown_exception</a> = 0;
<a name="l00268"></a>00268
<a name="l00269"></a>00269 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].<a class="code" href="structlinear__exception__holder.html#af58917e56c6831b227e006673710fe5d">what</a> = what;
<a name="l00270"></a>00270 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].<a class="code" href="structlinear__exception__holder.html#afcc50c683b77f6a21e07b49ac2bc81f3">function</a> = function;
<a name="l00271"></a>00271 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].<a class="code" href="structlinear__exception__holder.html#a4da979c2531ecea486a511e6540c031a">file</a> = file;
<a name="l00272"></a>00272 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].<a class="code" href="structlinear__exception__holder.html#a03fe66cae813ea2b3328f04878aec61b">line</a> = line;
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="keywordflow">return</span> & exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>++].<a class="code" href="structlinear__exception__holder.html#ad9a2b584f896181a0578b05c6cb7cc3e">where</a>;
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276
<a name="l00277"></a>00277 <span class="preprocessor">#if !defined(same_string_p)</span>
<a name="l00278"></a><a class="code" href="errors_8c.html#ac32f3590ee78925a812d8718f28e9a2b">00278</a> <span class="preprocessor"></span><span class="preprocessor">#define same_string_p(s1, s2) (strcmp((s1),(s2))==0)</span>
<a name="l00279"></a>00279 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00280"></a>00280 <span class="preprocessor"></span>
<a name="l00281"></a>00281 <span class="comment">/* pop a what exception.</span>
<a name="l00282"></a>00282 <span class="comment"> check for any mismatch!</span>
<a name="l00283"></a>00283 <span class="comment"> */</span>
<a name="l00284"></a>00284 <span class="keywordtype">void</span>
<a name="l00285"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a66795100cf9a30f6cf85a7c67d7c8050">00285</a> <a class="code" href="source_2arith_2arithmetique_8h.html#a66795100cf9a30f6cf85a7c67d7c8050">pop_exception_from_stack</a>(
<a name="l00286"></a>00286 <span class="keywordtype">int</span> what,
<a name="l00287"></a>00287 <span class="keyword">const</span> <span class="keywordtype">char</span> * function,
<a name="l00288"></a>00288 <span class="keyword">const</span> <span class="keywordtype">char</span> * file,
<a name="l00289"></a>00289 <span class="keywordtype">int</span> line)
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 <a class="code" href="errors_8c.html#a82fa865508693149b63d670fa7d7c438">exception_debug_trace</a>(<span class="stringliteral">"POP "</span>);
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>==0)
<a name="l00294"></a>00294 {
<a name="l00295"></a>00295 <a class="code" href="errors_8c.html#a8d4a2127a1edadca61c0631735922769">exception_debug_message</a>(<span class="stringliteral">"pop"</span>);
<a name="l00296"></a>00296 fprintf(stderr, <span class="stringliteral">"exception stack underflow\n"</span>);
<a name="l00297"></a>00297 <a class="code" href="source_2arith_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">dump_exception_stack</a>();
<a name="l00298"></a>00298 abort();
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>) <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>(file, function, line);
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>--;
<a name="l00304"></a>00304 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#a9dbd1094abce0128b2995c91d701349d">the_last_just_thrown_exception</a> = 0;
<a name="l00305"></a>00305
<a name="l00306"></a>00306 <span class="keywordflow">if</span> ((exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].what != what) ||
<a name="l00307"></a>00307 !<a class="code" href="errors_8c.html#ac32f3590ee78925a812d8718f28e9a2b">same_string_p</a>(exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].file, file) ||
<a name="l00308"></a>00308 !<a class="code" href="errors_8c.html#ac32f3590ee78925a812d8718f28e9a2b">same_string_p</a>(exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].function, function))
<a name="l00309"></a>00309 {
<a name="l00310"></a>00310 <a class="code" href="errors_8c.html#a8d4a2127a1edadca61c0631735922769">exception_debug_message</a>(<span class="stringliteral">"pop"</span>);
<a name="l00311"></a>00311 fprintf(stderr,
<a name="l00312"></a>00312 <span class="stringliteral">"exception stack mismatch at depth=%d:\n"</span>
<a name="l00313"></a>00313 <span class="stringliteral">" CATCH: %s:%d in %s (%d)\n"</span>
<a name="l00314"></a>00314 <span class="stringliteral">" UNCATCH: %s:%d in %s (%d)\n"</span>,
<a name="l00315"></a>00315 <a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>,
<a name="l00316"></a>00316 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].file,
<a name="l00317"></a>00317 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].line,
<a name="l00318"></a>00318 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].function,
<a name="l00319"></a>00319 exception_stack[<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>].what,
<a name="l00320"></a>00320 file, line, function, what);
<a name="l00321"></a>00321 <a class="code" href="source_2arith_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">dump_exception_stack</a>();
<a name="l00322"></a>00322 abort();
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325
<a name="l00326"></a>00326 <span class="comment">/* throws an exception of a given type by searching for </span>
<a name="l00327"></a>00327 <span class="comment"> the specified 'what' in the current exception stack.</span>
<a name="l00328"></a>00328 <span class="comment">*/</span>
<a name="l00329"></a><a class="code" href="include_2polylib_2arithmetique_8h.html#a904f0eb5107e737736e3992a6c0dc90f">00329</a> <span class="keywordtype">void</span> <a class="code" href="source_2arith_2arithmetique_8h.html#a904f0eb5107e737736e3992a6c0dc90f">throw_exception</a>(
<a name="l00330"></a>00330 <span class="keywordtype">int</span> what,
<a name="l00331"></a>00331 <span class="keyword">const</span> <span class="keywordtype">char</span> * function,
<a name="l00332"></a>00332 <span class="keyword">const</span> <span class="keywordtype">char</span> * file,
<a name="l00333"></a>00333 <span class="keywordtype">int</span> line)
<a name="l00334"></a>00334 {
<a name="l00335"></a>00335 <span class="keywordtype">int</span> i;
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <a class="code" href="errors_8c.html#a82fa865508693149b63d670fa7d7c438">exception_debug_trace</a>(<span class="stringliteral">"THROW"</span>);
<a name="l00338"></a>00338
<a name="l00339"></a>00339 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#a9dbd1094abce0128b2995c91d701349d">the_last_just_thrown_exception</a> = what; <span class="comment">/* for rethrow */</span>
<a name="l00340"></a>00340
<a name="l00341"></a>00341 <span class="keywordflow">for</span> (i=<a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a>-1; i>=0; i--)
<a name="l00342"></a>00342 {
<a name="l00343"></a>00343 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>)
<a name="l00344"></a>00344 <span class="comment">/* pop with push parameters! */</span>
<a name="l00345"></a>00345 <a class="code" href="errors_8c.html#a5cb3be87cd274e085213bafc6eca475f">pop_callback</a>(exception_stack[i].file,
<a name="l00346"></a>00346 exception_stack[i].function,
<a name="l00347"></a>00347 exception_stack[i].line);
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <span class="keywordflow">if</span> (exception_stack[i].what & what)
<a name="l00350"></a>00350 {
<a name="l00351"></a>00351 <a class="code" href="errors_8c.html#ad63e2e9e42900784d7f912727fc90af3">exception_index</a> = i;
<a name="l00352"></a>00352 <a class="code" href="errors_8c.html#a3313c41a656ee03e88a9d00234cfc5ec">linear_number_of_exception_thrown</a>++;
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a0471cbbdd66a5ee1fa3a459878c756be">linear_exception_debug_mode</a>)
<a name="l00355"></a>00355 fprintf(stderr, <span class="stringliteral">"---->[%s:%d %s (%d)/%d]\n"</span>,
<a name="l00356"></a>00356 exception_stack[i].file,
<a name="l00357"></a>00357 exception_stack[i].line,
<a name="l00358"></a>00358 exception_stack[i].function,
<a name="l00359"></a>00359 exception_stack[i].what,
<a name="l00360"></a>00360 i);
<a name="l00361"></a>00361
<a name="l00362"></a>00362 <span class="comment">/* trace some exceptions... */</span>
<a name="l00363"></a>00363 <span class="keywordflow">if</span> (<a class="code" href="errors_8c.html#a3e54f04e8bd9d204f2ad4dcd32ac744f">linear_exception_verbose</a> & what)
<a name="l00364"></a>00364 fprintf(stderr, <span class="stringliteral">"exception %d/%d: %s(%s:%d) -> %s(%s:%d)\n"</span>,
<a name="l00365"></a>00365 what, exception_stack[i].what,
<a name="l00366"></a>00366 function, file, line,
<a name="l00367"></a>00367 exception_stack[i].function,
<a name="l00368"></a>00368 exception_stack[i].file,
<a name="l00369"></a>00369 exception_stack[i].line);
<a name="l00370"></a>00370
<a name="l00371"></a>00371 longjmp(exception_stack[i].where, 0);
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373 }
<a name="l00374"></a>00374
<a name="l00375"></a>00375 <span class="comment">/* error. */</span>
<a name="l00376"></a>00376 <a class="code" href="errors_8c.html#a8d4a2127a1edadca61c0631735922769">exception_debug_message</a>(<span class="stringliteral">"throw"</span>);
<a name="l00377"></a>00377 fprintf(stderr,
<a name="l00378"></a>00378 <span class="stringliteral">"exception not found in stack:\n"</span>
<a name="l00379"></a>00379 <span class="stringliteral">"an exception was THROWN without a proper matching CATCH\n"</span>);
<a name="l00380"></a>00380 <a class="code" href="source_2arith_2arithmetique_8h.html#a5d0d562c4394d6711b3d105487cfa229">dump_exception_stack</a>();
<a name="l00381"></a>00381 abort();
<a name="l00382"></a>00382 }
<a name="l00383"></a>00383
<a name="l00384"></a><a class="code" href="errors_8c.html#a0b645a3ab909b237aebbf6b31560705c">00384</a> <span class="keywordtype">void</span> <a class="code" href="errors_8c.html#a0b645a3ab909b237aebbf6b31560705c">linear_initialize_exception_stack</a>(
<a name="l00385"></a>00385 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> verbose_exceptions,
<a name="l00386"></a>00386 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> push,
<a name="l00387"></a>00387 <a class="code" href="source_2arith_2arithmetic__errors_8h.html#aafc39b4cb7a07fefadbdaeb9f8753679">exception_callback_t</a> pop)
<a name="l00388"></a>00388 {
<a name="l00389"></a>00389 <a class="code" href="errors_8c.html#a3e54f04e8bd9d204f2ad4dcd32ac744f">linear_exception_verbose</a> = verbose_exceptions;
<a name="l00390"></a>00390 <a class="code" href="errors_8c.html#a93de4c04224b53c462a8bd9242edd3ed">set_exception_callbacks</a>(push, pop);
<a name="l00391"></a>00391 }
</pre></div></div>
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