Table of Content

Preprocessor :

Program that Processes or Analyzes the source code file before Given to the Compiler

Tasks Performed By Pre-processor :

• Replaces Trigraph Sequences
• Joins any Line with the Backslash Character into Single Line
• Divide Program into Set of Tokens
• Expand Macroes
• Remove Comments and Replace it by Single Space
• Represent the Escape Sequence by its Internal Representation
• Concatenate adjacent Constant character String

Note :

• They Begin with a # which must be first non-space character on the line
• They do not ends with semicolon

Types :

1. Macro Substitution Directive
2. File Inclusive
3. Conditional Compilation