C Programming Tutorial

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» Introduction & History of C » Constants & there Types » Variables & there Types » C Keywords » Data Type in C » C - Operators » First Program in C

Decision Control Statements The if statement Multiple if statement The if-else statement Ternary operator ( ? ) goto statement switch statement

Loops in C The While loop The do-while loop The for loop Nesting of Loops Break & Continue Statement

Array in C Declaration of an Array Entering Data into an Array Reading Data from an Array Array Elements in Memory Passing Array Elements to a Function Passing an Entire Array to a Function Two-Dimensional Arrays Initialising a 2-D Array Reading Data from 2-D Array Memory Map of 2-D Array Three-Dimensional Array

Pointer in C Pointer Variables Declaration Pointer Operators

String in C Pointers and Strings String Functions strlen( ) Function strcpy( ) Function strcat( ) Function strcmp( ) Function

Function in C Function Prototypes declaration Call by Value Call by Reference Returning Values Recursion

Structure in C Declaring a Structure Accessing Structure Members Structure Assignments Arrays of Structures Passing Structures to Functions Structure Pointers Uses of Structures

Union in C Difference Between Structure and Union

File Handling in C File Operations Opening a File Reading from a File Trouble in Opening a File Closing the File Writing to a File File Opening Modes File Handling Functions

Additional Tutorials on C

Objective Question on C

C Keywords

C Keywords

Keywords are the words whose meaning has already been explained to the C compiler (or in a broad sense to the computer). The keywords cannot be used as variable names because if we do so we are trying to assign a new meaning to the keyword, which is not allowed by the computer.

There are only 32 keywords available in C

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

Note :

Some compiler vendors (like Microsoft, Borland, etc.) provide their own keywords apart from the ones mentioned above. These include extended keywords like near, far, asm, etc.

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