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➜ C Language
  - Features of C
  - First C Program
  - Compilation in C
  - C Character Set
  - Tokens
  - Keywords
  - Identifiers
  - Constants
  - Operators
  - Data Types
  - Variables
  - Type Casting
  - Comments
  - Input/Output
  - Escape Sequence
  - Programming Errors
➜ Control Statements
  - if Statement
  - if-else Statement
  - Nested if-else
  - else-if
  - switch Statement
  - Loop
  - while loop
  - do while loop
  - for loop
  - break
  - continue & goto
  - Nested Loop
  - Infinite Loop
➜ Functions
  - What is function
  - Call by Value & Reference
  - Recursive function
  - Storage Classes
➜ Array
  - 1-D Array
  - 2-D Array
  - Return an Array
  - Array to Function
➜ C Pointers
  - Pointers
  - Pointer to Pointer
  - Pointer Arithmetic
  - Dangling Pointers
  - sizeof() operator
  - const Pointer
  - void pointer
  - Dereference Pointer
  - Null Pointer
  - Function Pointer
  - Function pointer as argument
➜ Memory Management
  - Memory Layout of C
  - Dynamic memory
  - calloc()
  - malloc()
  - realloc()
  - free()
➜ Strings
  - gets() & puts()
  - String Functions
  - strlen()
  - strcpy()
  - strcat()
  - strcmp()
  - strrev()
  - strlwr()
  - strupr()
  - strstr()
➜ C Math
  - Math Functions
➜ Enum, Structure & Union
  - Enum
  - Structure
  - typedef
  - Array of Structures
  - Nested Structure
  - Structure Padding
  - Union
➜ File Handling
  - fprintf() fscanf()
  - fputc() fgetc()
  - fputs() fgets()
  - fseek()
  - EOF and feof()
  - fsetpos()
  - tmpfile()
  - rewind()
  - ftell()
  - lseek()
➜ Preprocessor
  - Preprocessor
  - Macros
  - #include
  - #define
  - #undef
  - #ifdef
  - #ifndef
  - #if
  - #else
  - #error
  - #pragma
➜ Command Line
  - Arguments

Keywords in C Language

Keywords are pre-defined reserved words in a C compiler. Each keyword is associated with a specific functionality in a C program. Since keywords are pre-defined words for compiler, they can't be used as variable name.

A list of 32 keywords available in C language are given below:


auto double int struct
break else long switch
case enum register typedef
char extern return union
const float short unsigned
continue for signed void
default goto sizeof volatile
do if static while



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