CS210 Lab: Operator Overloading Prelab

Overview

This prelab exercise tests your knowledge of function overloading.

In summary, you can define functions with the same name but with different parameter types or different number of parameters. When you do this, you can say that you have overloaded a function.

void timesTwo(int &num);
void timesTwo(double &num);

Prelab Exercise:

1. Given a function prototype:

   void stradd(char *s1, char *s2); 
   

   Which of the following overload stradd?

   1. void stradd(char *s1, int i);
   2. void sstradd(int i, int j);
   3. void stradd(char *s1, char *s2, int i);
   4. void stradd(int i, int j);
   5. void stradd3(char *s1, char *s2, char *s3);

2. Given the following function, which calculates the average of an array of numbers of type int:

   int average(int array[], int size);
   {
   	int total=0;   			//set total to 0
   	for (int j=0; j<size; j++) 	//for every array member,
   		total+=array[j];	//add it to total
   	return total/size;		//average (as integer)
   }
   

   Overload the function so that it averages arrays of type long.