//简单的捕捉段错误信号信号处理程序,通过signal来捕捉错误.
#include<stdio.h>
#include<signal.h>
#include<stdlib.h>
void handler(int s)
{
if(s == SIGINT) printf("now got a interrupt signal ");
if(s == SIGSEGV) printf("now got a segmentation violation signal ");
if(s == SIGILL) printf("now got an illegal instruction signal ");
exit(1);
}
int main()
{
int *p = NULL;
signal(SIGINT, handler);
signal(SIGSEGV,handler);
signal(SIGILL, handler);
*p = 0;
return 0;
}