Lecture 8 Objectives

At the end of today's class you should

KNOW:

That a pointer is an address
That a pointer must be declared to point to a particular data type
That C uses pointers to simulate call-by-reference

BE ABLE TO:

Declare a pointer
Initialize a pointer
Define and call a function that uses pointers as parameters

Sample Exam Question:

Write the complete function definition (function heading and function body) for a C function called calculate with the following pre- and post-conditions:

PRE:  num is a non-negative float
POST: the function returns the square root of num, and the value of num squared