scanf : scanf Basics « printf scanf « C Tutorial

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C Tutorial » printf scanf » scanf Basics

4. 20. 1. scanf

The scanf function: read information from a standard input device (keyboard).


scanf("conversion specifier", variable);

The conversion specifier argument tells scanf how to convert the incoming data.

scanf starts with a string argument and may contain additional arguments.
Additional arguments must be pointers.
scanf returns the number of successful inputs.

Common Conversion Specifiers Used with Scanf

Conversion Specifier	Description
%d	Receives integer value
%f	Receives floating-point numbers
%c	Receives character


#include <stdio.h>



main()

{

    int i = 0;

    int k,j=10;



    printf("Input three integers and press enter to confirm.");



    i=scanf("%d%d%d",&j,&k,&i);

    printf("total values inputted %d\n",i);

    printf("The input values %d %d\n",j,k);

}

Input three integers and press enter to confirm.1 2 3
total values inputted 3
The input values 1 2

4. 20. scanf Basics
	4. 20. 1.	scanf
	4. 20. 2.	Using Scanf to Receive Input from a User
	4. 20. 3.	The scanf placeholders
	4. 20. 4.	Use scanf to get input from a standard input device, such as a keyboard
	4. 20. 5.	Pass pointer argument to scanf
	4. 20. 6.	Using an inverted scan set
	4. 20. 7.	Reading and discarding characters from the input stream

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