C Preprocessor in C Programming

1.1 Introduction

• Flowchart
• Difference Between Function and Macro

1.2 Tasks

• Tasks Performed

1.3 Macro Substitution Directive

• Types of Macro Substitution Directive
• Simple Substitution [ #define ]
• Argumented Macro
• Nested Macro

1.4 File Inclusive Directive

• #include

1.5 Conditional Compilation

• #if
• #else
• #elif
• #ifdef
• #ifndef
• #undef
• #pragma
• #pragma startup and #pragma exit

1.6 Common Preprocessor Mistakes / Errors

• Errors / Mistakes / Misuse while using preprocessor

1.7 Use / Application of #define

• Pre-processor to define String
• Pre-processor to define Constant
• Pre-processor to define Boolean Values
• Pre-processor to define Operators
• Pre-processor to define Functions

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