1 /* vector/gsl_check_range.h
2  *
3  * Copyright (C) 2003, 2004, 2007 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 #ifndef __GSL_CHECK_RANGE_H__
21 #define __GSL_CHECK_RANGE_H__
22 
23 #include <stdlib.h>
24 #include <gsl/gsl_types.h>
25 
26 #undef __BEGIN_DECLS
27 #undef __END_DECLS
28 #ifdef __cplusplus
29 # define __BEGIN_DECLS extern "C" {
30 # define __END_DECLS }
31 #else
32 # define __BEGIN_DECLS /* empty */
33 # define __END_DECLS /* empty */
34 #endif
35 
36 __BEGIN_DECLS
37 
38 GSL_VAR int gsl_check_range;
39 
40 /* Turn range checking on by default, unless the user defines
41    GSL_RANGE_CHECK_OFF, or defines GSL_RANGE_CHECK to 0 explicitly */
42 
43 #ifdef GSL_RANGE_CHECK_OFF
44 # ifndef GSL_RANGE_CHECK
45 #  define GSL_RANGE_CHECK 0
46 # else
47 #  error "cannot set both GSL_RANGE_CHECK and GSL_RANGE_CHECK_OFF"
48 # endif
49 #else
50 # ifndef GSL_RANGE_CHECK
51 #  define GSL_RANGE_CHECK 1
52 # endif
53 #endif
54 
55 __END_DECLS
56 
57 #endif /* __GSL_CHECK_RANGE_H__ */
58