signal

#include<iostream.h>
#include <iomanip.h>
#include <signal.h>
#include <stdlib.h>
#include <time.h>

void signal_handler(int);

int main()
{
 signal(SIGINT,signal_handler);

 srand(time(0));

 for(int i=1;i<101;i++)
 {
  int x=1+rand()%50;

  if(x==25)
   raise(SIGINT);

  cout<<setw(4)<<i;

  if(i%10==0)
   cout<<endl;

 }
 return 0;
}

void signal_handler(int signalValue)
{
 cout<<"\ninterupt signal ("<<signalValue<<" ) received. \n"<<"Do you wish to continue(1=yes or 2=no)?";

 int res;
 cin>>res;

 while(res!=1 && res!=2)
 {
  cout<<"(1=yes or 2=no)?";
  cin>>res;
 }

 if(res==1)
  signal(SIGINT,signal_handler);
 else
  exit(EXIT_SUCCESS);
}