#include<iostream.h>
void calc_wages(int hour, float rate);//note1
void main(void)
{
	int hours_worked;
	float hourly_rate;
	cout << "Enter the number of hours worked :";
	cin >> hours_worked;
	cout << "Enter the hourly pay rate :";
	cin >> hourly_rate;

	calc_wages(hours_worked, hourly_rate);//note2
}
void calc_wages(int hour, float rate)//note3
{
	float wage;
	wage = hour * rate;
	cout << "The wage is " << wage << endl;
}


//at note 1: there is the prototype  of function calc_wages. 
//			notice that this function has two parameters
//at note 2: the function calc_wages is called. the parameters 
//			hours_worked and hourly_rate are passed to the function. 
//			that means that the values in these variables are sent to the function. 
//			the parameters hours_hours and hourly_rate are called "actual parameters" 
//			because these are the values that are actually used when the function is called.
//at note 3: we find the function definition. notice that in the function definition, 
//			the parameters names are hours and rate. these parameters(the ones used in 
//			the function definition) are called "formal parameters" because they show the 
//			form the parameters must take. the formal parameters and the actual parameters 
//			don't have the same names, but they must have the same matching types.

*** as a general rule, any information that a function needs (as input) should be sent to it via parameters.