GRASS GIS 8 Programmer's Manual 8.3.2(2024)-exported
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calc.c
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1#include <unistd.h>
2#include <signal.h>
3
4#include <grass/calc.h>
5
6/****************************************************************************/
7
10
12
13/****************************************************************************/
14
15static void handle_fpe(int n UNUSED)
16{
19}
20
21void pre_exec(void)
22{
23#ifndef __MINGW32__
24#ifdef SIGFPE
25 struct sigaction act;
26
27 act.sa_handler = &handle_fpe;
28 act.sa_flags = 0;
29 sigemptyset(&act.sa_mask);
30
31 sigaction(SIGFPE, &act, NULL);
32#endif
33#endif
34
36}
37
38void post_exec(void)
39{
40#ifndef __MINGW32__
41#ifdef SIGFPE
42 struct sigaction act;
43
44 act.sa_handler = SIG_DFL;
45 act.sa_flags = 0;
46 sigemptyset(&act.sa_mask);
47
48 sigaction(SIGFPE, &act, NULL);
49#endif
50#endif
51}
52
53/****************************************************************************/
54
55void calc_init(int cols)
56{
57 columns = cols;
58}
59
60/****************************************************************************/
volatile int floating_point_exception
Definition calc.c:8
int columns
Definition calc.c:11
void pre_exec(void)
Definition calc.c:21
void post_exec(void)
Definition calc.c:38
void calc_init(int cols)
Definition calc.c:55
volatile int floating_point_exception_occurred
Definition calc.c:9
#define NULL
Definition ccmath.h:32