#undef #ifndef #ifdef #elif #if and #else #define #include What is preprocessor in C?

Datatypes & Variables What is C Identifiers Volatile Constants Storage class specifier Keywords Escape sequence C Tokens Header files

How to Compile and Run? How to install turbo C in windows 7/8? How to install turbo C in windows XP? Structure of C Program Characters in C

Logical operators Relational operators Arithmetic Operators Operators Sizeof Operator Conditional Operator Bitwise operators Assignment Operators Increment & Decrement Operators

puts gets getchar Putchar getche putch Getch Scanf printf

If-Else If Goto Switch Nested If-Else Else-If

Continue Break Do-While While For

One Dimensional What is Array? Multi Dimensional Two Dimensional

Strrev Strcat Strstr Strchr Strupr Strlwr Strcmp Strcpy Strlen What is String?

Simple Defining a Function Function prototype What is Functions? Arrays as Arguments Nesting Functions Recursion Call by reference Call by value Arguments with Return value

Return Value Arguments

Different between Struct and Union Define Union Structure with Functions Nested Structures Arrays of Structures Comparing two Structures Copying Structures Define Structure

Pointers and Structures Functions Returning Pointers Pointers as Function Arguments Pointers Array Operators in pointers & Operator Define Pointers

Free Realloc Calloc Malloc Dynamic Memory Allocation

Append Files Read Files Write Files What is Files? Error handling