CS210 Lab: Operator Overloading Prelab Answers

Prelab Answers:

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);
   a, c and d overload stradd.
   b and e have different function names.

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.

   long average(long array[], int size);
   {
   	long 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 long)
   }