Unit-1 User-Defined Functions:
Introduction, Need for user-defined functions, Elements of UDF
(function definition, function call and function declaration), return value and their types, Category of functions – No Arguments and No Return values, With Argument No Return values, No Argument With Return values, With Arguments With Return values, Nesting of functions, Recursion
Unit-2 Structures and Union:
Structures: Introduction, Structure definition, declaration and initialization of structure, accessing structure member, Comparison of Structures and Arrays, Arrays of structures variable, Array within structure, Concept of structures within structures, Structures and Functions.
Union: Introduction, Union definition, declaration and initialization of union, accessing union member, Comparison of Structure and Union.
Unit-3 Pointers:
Pointers: Introduction, Concept and Application of Pointers, accessing the address of a variable, declaring and initializing pointers, accessing a variable through its pointer, pointer expressions, pointer increments and scale factor, pointers and arrays (one dimensional), pointers and character strings, array of pointer, pointers and functions.
Unit-4
File Management in C:
Introduction and Application, defining and opening a file, closing a file, file handling functions, command line arguments.
Dynamic Memory Allocation:
Introduction, memory allocation functions (malloc, calloc, free, realloc).
