Quick Reference List: Format Specifier, Escape Sequence

Hi,
This post will provide a quick reference list used in various places.

Format Specifier List

Format Specifier	Description	Supported Data Types
%c	Character	char unsigned char
%d	Signed Integer	short unsigned short int long
%e or %E	Scientific notation of float values	float double
%f	Floating point	float
%g or %G	Similar as %e or %E	float double
%hi	Signed Integer(Short)	short
%hu	Unsigned Integer(Short)	unsigned short
%i	Signed Integer	short unsigned short int long
%l or %ld or %li	Signed Integer	long
%lf	Floating point	double
%Lf	Floating point	long double
%lu	Unsigned integer	unsigned int unsigned long
%lli, %lld	Signed Integer	long long
%llu	Unsigned Integer	unsigned long long
%o	Octal representation of Integer.	short unsigned short int unsigned int long
%p	Address of pointer to void void *	void *
%s	String	char *
%u	Unsigned Integer	unsigned int unsigned long
%x or %X	Hexadecimal representation of Unsigned Integer	short unsigned short int unsigned int long
%n	Prints nothing
%%	Prints % character

Note: Most frequently used format specifiers are highlighted for quick reference.

Escape Sequence in C

In C, escape sequences are sequence of characters which have pre defined meanings. For example while printing on console if you wish to shift cursor to next line the escape sequence used is "\n".

Likewise double quotes ("") and backslash (\) have special meaning in C. If you wish to print double quotes in your output, you have to write it like (\"\").

For quick reference list of escape sequences is given below.

List of Escape Sequences in C

Escape Sequence	Meaning
\a	Alarm or Beep
\b	Backspace
\f	Form Feed
\n	New Line
\r	Carriage Return
\t	Tab (Horizontal)
\v	Vertical Tab
\\	Backslash
\'	Single Quote
\"	Double Quote
\?	Question Mark
\nnn	octal number
\xhh	hexadecimal number
\0	Null

Thanks

Prateek