// pgm20 functions with parameters
// and return values
// 10/6/16
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;

void hello() {
    string name;
    cout << "What is your name? ";
    cin >>  name;
    cout << "Hello " << name << '!' << endl;
    return;
}

int sum2nums(int x, int y) {
    int sum = x+y;
    return sum;
    // return x+y; // another way of doing the same thing
}

double average(int x, int y) {
    double avg;
    avg = sum2nums(x,y)/2.0;
    return avg;
}

int main()
{
   // hello();
    int num1=5, num2=18;
    cout << "in main, before call: " << endl;
    cout << sum2nums(1,3) << endl;
    int added=sum2nums(num1, num2);
    cout << "after second call: added is: " << added << endl;
    cout << "the average is: " << average(num1,num2) << endl;
    return 0;
}
/*
LAB:
Modify the celcius to faranheit program (pgm5.cpp) to calculate
the temperature in a function.

Write a function that accepts a double which represents
a temperature in degrees celcius. The function should
convert the parameter into degrees faranheit and return
that value.
*/