Thread: double to float

I wrote a program converting fahrenheit to celsius but the requirement calls for using int for fahrenheit and float for celsius. Obviously thats leading to possible loss of data warnings. What can I do? And does anyone know why the "0" isn't showng in the celsius column? I think it was there but I changes something and now its gone?

Code:

#include <stdio.h>
#include <stdlib.h>


int main()

{

int fahrenheit;
float celsius;
int lower, upper, step;

printf( "Fahrenheit     Celsius\n\n" );

lower = 0;
upper = 212;
step = 1;

fahrenheit = lower;



while (fahrenheit <= upper)
	{
		celsius = ( 5.0/9.0 ) * ( fahrenheit - 32.0 );
		printf( "%10.0d  %+10.3f\n", fahrenheit, celsius );
		fahrenheit = fahrenheit + step;
	}
	return 0;
}

Do these changes

Code:

#include <stdlib.h>


int main()

{

int fahrenheit;
float celsius;
int lower, upper, step;

printf( "Fahrenheit     Celsius\n\n" );

lower = 0;
upper = 212;
step = 1;

fahrenheit = lower;



while (fahrenheit <= upper)
	{
		celsius = ( 5.0f/9.0f ) * ( fahrenheit - 32.0f );
		printf( "%10.0d  %+10.3f\n", fahrenheit, celsius );
		fahrenheit = fahrenheit + step;
	}
	return 0;
}

Code:

#include <stdio.h>
#include <stdlib.h>

int main() {

   int fahrenheit;
   float celsius;
   int lower, upper, step;

   printf( "Fahrenheit     Celsius\n\n" );

   lower = 0;
   upper = 212;
   step = 1;

   fahrenheit = lower;

   while (fahrenheit <= upper)
      {
	celsius = ( 5.0f/9.0f ) * ( fahrenheit - 32.0f );
	printf( "%10.0d  %+10.3f\n", fahrenheit, celsius );
	fahrenheit = fahrenheit + step;
      }
   return 0;
}

ahihih