1 /* err/error.c
2 *
3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Gerard Jungman, Brian Gough
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or (at
8 * your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19
20 #include <config.h>
21 #include <stddef.h>
22 #include <stdlib.h>
23 #include <stdio.h>
24
25 #include <gsl/gsl_errno.h>
26 #include <gsl/gsl_message.h>
27
28 gsl_error_handler_t * gsl_error_handler = NULL;
29
30 static void no_error_handler (const char *reason, const char *file, int line, int gsl_errno);
31
32 void
gsl_error(const char * reason,const char * file,int line,int gsl_errno)33 gsl_error (const char * reason, const char * file, int line, int gsl_errno)
34 {
35 if (gsl_error_handler)
36 {
37 (*gsl_error_handler) (reason, file, line, gsl_errno);
38 return ;
39 }
40
41 gsl_stream_printf ("ERROR", file, line, reason);
42
43 fflush (stdout);
44 fprintf (stderr, "Default GSL error handler invoked.\n");
45 fflush (stderr);
46
47 abort ();
48 }
49
50 gsl_error_handler_t *
gsl_set_error_handler(gsl_error_handler_t * new_handler)51 gsl_set_error_handler (gsl_error_handler_t * new_handler)
52 {
53 gsl_error_handler_t * previous_handler = gsl_error_handler;
54 gsl_error_handler = new_handler;
55 return previous_handler;
56 }
57
58
59 gsl_error_handler_t *
gsl_set_error_handler_off(void)60 gsl_set_error_handler_off (void)
61 {
62 gsl_error_handler_t * previous_handler = gsl_error_handler;
63 gsl_error_handler = no_error_handler;
64 return previous_handler;
65 }
66
67 static void
no_error_handler(const char * reason,const char * file,int line,int gsl_errno)68 no_error_handler (const char *reason, const char *file, int line, int gsl_errno)
69 {
70 /* do nothing */
71 reason = 0;
72 file = 0;
73 line = 0;
74 gsl_errno = 0;
75 return;
76 }
77
78
79