Scanf() function Format Specifiers

Introduction

The input format specifiers are preceded by a % sign.

It tells scanf( ) what type of data is to be read next.

These codes are listed in the following table.

Code	Meaning
%a	Reads a floating -point value (C99 only).
%c	Reads a single character.
%d	Reads a decimal integer.
%i	Reads an integer in either decimal, octal, or hexadecimal format.
%e	Reads a floating -point number.
%f	Reads a floating -point number.
%g	Reads a floating -point number.
%o	Reads an octal number.
%s	Reads a string.
%x	Reads a hexadecimal number.
%p	Reads a pointer.
%n	Receives an integer value equal to the number of characters read so far.
%u	Reads an unsigned decimal integer.
%[ ]	Scans for a set of characters.
%%	Reads a percent sign.

The format specifiers are matched, in order from left to right, with the arguments in the argument list.