C Programming

11

Preprocessor Directives

CHAPTER OUTLINE

11.1 Introduction

11.2 #define Directive

11.3 Undefining a Macro

11.4 Token Pasting and Stringizing Operators

11.5 #include Directive

11.6 Conditional Compilation

11.7 #ifndef Directive

11.8 #error Directive

11.9 #line Directive

11.10 inline Directive

11.11 #pragma Saveregs

11.12 The Pre-Defined Macros in ANSI and Turbo C

11.13 The Pre-Defined Marcos in ctype.h

11.1 INTRODUCTION

You are now aware of the execution of C programs. For refreshing the knowledge of the reader, lets look at certain steps the program execution needs. These are: (a) the C program is written in editor, (b) compilation, (c) linking and (d) the executable code generation. In between these stages, one more stage also involves, ...