// pgm18 functions
// 10/5/16
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;

// function declaration
// prototype
// tells the compiler that you will write such a function
void second();

void hello() {
    cout << "hello world!" << endl;
    return;
}

int main()
{
    for (int i=0;i<3;i++)
         hello();

    cout << "in main, before call to second: " << endl;
    second();
    cout << "in main, after call to second" << endl;
    return 0;
}
/*
void second() {
    cout << "in function second, calling hello..." << endl;
    hello();
    cout << "good bye." << endl;
    return;
}
*/