2nd semister Unit-2 C programming notes 

Unit-II: Structures and Union & File Handling:

Structures and Union: 

• Definition and declaration of structure and union
• difference between structure
• and union
• Array of structures
• Passing structure to function
• Pointer to structure
• Nested structure
• self￾referential structure

File Handling: 

• Introduction
• Standard input- get char(), getch(), getche(), Standard output- putchar(), putch(), putche()
• Formatted input- scanf(), sscanf(), fsclose(),File modes
• Text and binary mode

Macros and Preprocessing: 

• Features of C pre-processor
• Macro – Declaration
• Expansion
• File Inclusion