#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdbool.h>
#include <signal.h>

void ctrl_c(int);    // prototype for signal handler 

bool keep_going;


int main(int argc, char* argv[]){
	

//	signal(SIGINT, ctrl_c);  // install handler
	signal(SIGINT, SIG_IGN);  // install handler

	perror("enter loop 1");
	keep_going = true;
	while( keep_going ){	}
	perror("finish loop 1");

	perror("enter loop 2");
	keep_going = true;
	while( keep_going ){	}
	perror("finish loop 2");


	printf("go out of the infinite loop!\n");
	return 0;
}

void ctrl_c(int signum){
	printf("\n\n\nsignal for ctrl-c received : %d\n\n\n", signum);
	if(signum == 2)
		keep_going = false;
	signal(SIGINT, ctrl_c);  // install handler
	
}