#include <signal.h>
#include <iostream>
#include <unistd.h>
#include <setjmp.h>

using namespace std;

static sigjmp_buf SAVE_ENV;

void FPEHandler(int signal) {
    cerr << "I had a FPE " << endl;
//    raise(SIGFPE);

    siglongjmp(SAVE_ENV,1);
    
    return;
}

const int START = -5;
const int STOP = 5;

int main() {

    struct sigaction action;
    sigset_t set;

    sigemptyset(&set);

    action.sa_handler = FPEHandler;
    action.sa_mask = set;
    action.sa_flags = 0;

    sigaction(SIGFPE, &action, nullptr);

    int i;

    i = START;
    while (i < STOP) {
	if (1 == sigsetjmp(SAVE_ENV,1)) {
	    cout << "Fixing I. " << endl;
	    i++;
	}
        cout << "7/" << i << " = " ;
        cout << 7/i << endl;
	sleep(1);
	i++;
	if (i == STOP) {
	  i = START;
	}
    }

    return 0;
}