CHAPTER 1
GETTING STARTED WITH C

This chapter is a gentle introduction to C. We begin with a pair of simple programs: one prints a welcoming message, the other calculates the actual cost of purchasing a set of items. We describe these programs in great detail and provide several variants of each. Along the way we introduce the basics of C program organization, the process of compilation and linking, and several fundamental language features: the printf function for performing formatted output, variable declaration and assignment, and the arithmetic operators.

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1. AN INTRODUCTION TO C
2. A FIRST C PROGRAM
   • The main Program
   • The printf Statement
3. COMPILING AND RUNNING C PROGRAMS
4. IMPROVING OUR INITIAL PROGRAM: COMMENTS
5. FURTHER IMPROVING OUR INITIAL PROGRAM
   • Function Prototypes and Include Files
   • Return Values
6. A SECOND C PROGRAM
   • Variable Declarations
   • Assignment Statements
   • Formatted Output with printf
7. IMPROVING OUR SECOND PROGRAM
   • Defining Constants
   • Using Field Widths with printf
   • A Word to the Wise

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