scanf
Our first program using scanf simply reads in an integer
and a double and prints them out.
The Program
<![CDATA[
/*********************************************
** File: scanf.c
** Author: R. Chang
** Modified by: S. Evans
** Date: 3/5/04
** Section: 01XX & 02XX
** EMail: bogar@cs.umbc.edu
**
** This program demonstrates the use
** of the scanf function.
**********************************************/
#include <stdio.h>
int main ( )
{
int n ;
double x ;
printf("Enter an integer: ") ;
scanf("%d", &n) ;
printf("Enter a double: ") ;
scanf("%lf", &x) ;
printf("n = %d, x = %f\n", n, x) ;
return 0;
}
]]>
The Sample Run
<![CDATA[
linux3[84] % a.out
Enter an integer: 34
Enter a double: 342.123
n = 34, x = 342.123000
linux3[85] % !a
a.out
Enter an integer: 34
Enter a double: 34e12
n = 34, x = 34000000000000.000000
linux3[86] % !a
a.out
Enter an integer: 34e12
Enter a double: n = 34, x = 0.000000
linux3[87] % !a
a.out
Enter an integer: bbb bbb
Enter a double: n = -1073743084, x = 20413874176.000061
linux3[88] %
]]>
<![CDATA[
]]>