Format Specifiers And Escape Sequence In C

Posted on October 24, 2023 by Vishesh Namdev

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Format specifiers in C are used to specify the data type of the value that you want to print or read using functions like printf and scanf. They provide a way to format and interpret the data correctly. Each format specifier corresponds to a specific data type.

Here's a table of commonly used format specifiers in C programming language:

Format Specifier	Data Type
%d	Integer
%i	Integer (alternative)
%u	Unsigned Integer
%ld	Long Integer
%lu	Long Unsigned Integer
%lld	Long Long Integer
%llu	Long Long Unsigned Integer
%x	Hexadecimal Integer
%X	Hexadecimal Integer (Uppercase)
%o	Octal Integer
%f	Float
%lf	Double
%c	Character
%s	String
%p	Pointer Address

Here's an example so that you can use Format Specifiers in C:

#include < stdio.h > Copy Code
int main ()
{
int num = 42 ;
float pi = 3.14 ;
char letter = 'L' ;

printf ( "Integer = %d " , num );
printf ( "Float = %f " , pi );
printf ( "Character = %c " , letter );
return 0;
}

Output:

Integer = 42
Float = 3.141592
Character = L

Escape Sequences

In C, an escape sequence is a combination of characters that begins with a backslash and is used to represent special characters and control codes within strings. These sequences are interpreted by the C compiler to produce specific characters or actions.

Escape Sequence	Meaning	Example	Output
\	Backslash	"This is a backslash: \\n"	This is a backslash:
'	Single Quote	'''	'
""	Double Quote	"""Quoted text"""	"Quoted text"
	Newline	"Line 1\nLine 2"	Line 1 Line 2
	Tab	"Column 1\tColumn 2"	Column 1 Column 2
	Carriage Return	"AB\rCD"	CD
	Backspace	"ABC\bD"	ABD
f	Form Feed	"Page 1\fPage 2"	Page 1 Page 2 (may not be visible in all environments)
a	Bell	"\aBeep!"	(beeping sound or visual notification)
v	Vertical Tab	"Line 1\vLine 2"	(may not be visible in all environments)

Format specifiers and escape sequences make it possible to manipulate and display data in a controlled and predictable manner in C programs. They are essential for input and output operations and for generating formatted output.

Introduction

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Control Flow and Decision Making

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Arrays and Strings in C

Pointers in C

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Format Specifiers And Escape Sequence In C

Here's a table of commonly used format specifiers in C programming language:

Here's an example so that you can use Format Specifiers in C:

Output:

Escape Sequences

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