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exception.cpp
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1 /*
2  * exception.cpp - exception class implementation
3  *
4  * Copyright (C) 2004 Stefan Jahn <stefan@lkcc.org>
5  *
6  * This is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2, or (at your option)
9  * any later version.
10  *
11  * This software is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this package; see the file COPYING. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  *
21  * $Id: exception.cpp 1825 2011-03-11 20:42:14Z ela $
22  *
23  */
24 
25 #if HAVE_CONFIG_H
26 # include <config.h>
27 #endif
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <stdarg.h>
33 
34 #include "exception.h"
35 
36 using namespace qucs;
37 
38 // Constructor creates an instance of the exception class.
39 exception::exception () {
40  code = EXCEPTION_UNKNOWN;
41  txt = NULL;
42  data = 0;
43 }
44 
45 // Constructor creates an typified instance of the exception class.
46 exception::exception (int type) {
47  code = type;
48  txt = NULL;
49  data = 0;
50 }
51 
52 /* This copy constructor creates a instance of the exception class based
53  on the given exception. */
54 exception::exception (const exception & e) {
55  txt = e.txt ? strdup (e.txt) : NULL;
56  code = e.code;
57  data = e.data;
58 }
59 
60 // Destructor deletes an instance of the exception class.
62  if (txt) free (txt);
63 }
64 
65 /* This function save the given messages format and the appropriate
66  arguments to the internal text property of the exception object. */
67 void exception::setText (const char * format, ...) {
68  char * str;
69  va_list args;
70 
71  if (txt) free (txt);
72  str = (char *) malloc (1024); // this should be enough
73  va_start (args, format);
74  vsprintf (str, format, args);
75  va_end (args);
76 
77  // copy string to text buffer
78  txt = strdup (str); free (str);
79 }