//PROCESS PROGRAM
//To compile : g++ <filename.cc>
//To Run :./ a.out
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
#include <stdio.h>

void function(int value);
int sum = 0;
int main (void){
int status;
int pid = waitpid ( fork () , &status , 0);
if ( pid > 0 ) { // parent

sum++;
}else { // child
function ( fork ());
}
printf( "Sum: %d\n",sum);
return 0 ;
}
void function (int pArg){
int status;
if ( pArg != 0 ){ // CHILD
waitpid(pArg,&status,0);
}
sum++;
}