Thread: Help with a basic scanf procedure.

Originally Posted by killpoppop

Ah i get it. It's all about memory so if i enter 12. It will store 1 as m and 2 as km?

So what i've been doing is enetering say 'km'. That will store 'k' as m and 'm' as km?

That's right. And if you had typed "m", you would have gotten 'm' in the variable m and '\n' (=enter key) in the variable km.

So chuffed guys i got it made a bad mistake in the print functions both were using the kilometers function to convert. Here's the finished code.

Code:

#include<stdio.h>

double kilometres( double m ) 
{
	return m * 1.609344 ;
}

double miles( double km )
{
	return km * 0.621371192 ; 
}

int main( void ) 
{
	float a ;
	float b ;
	char c, d ;
	printf( "Do you wish to convert m or km?\n") ;
	scanf( "&#37;c%c", &c, &d) ;  
	
	if( c == 'k' && d == 'm' )
	{
		printf( "Y number of km converted to m:\n") ;
		scanf( "%f", &b ) ; 
  		printf( "= %f km\n", miles((float) b)) ;
	}
	
	else
	{
		printf( "X number of m converted to km:\n") ;
		scanf( "%f", &a ) ; 
  		printf( "= %f km\n", kilometres((float) a)) ;
	}
  	return 0 ;
}

Thanks again! =]