/*
 * CISC102-12 
 * conversion_dowhile.c
 * This program converts Celsius temperatures to Fahrenheit.
 * modified to use a do-while loop, but it's a little ugly.
 * 06.13.05
 */
#include<stdio.h>
#define STOP_VALUE -99

int main() {
  double celsius;
  double fahrenheit;

  printf("Welcome!\n");
  
  do {
 
    printf("Enter a temperature in F (Enter %d to stop): ",
	 STOP_VALUE);
    scanf("%lf", &fahrenheit);

    celsius = (5/9.0) * ( fahrenheit - 32 );
  
    printf("%.2lf degrees F is %.2lf degrees C.\n", fahrenheit,
	   celsius);
    /* computes the temperature for all values, even the STOP_VALUE */

  } while( fahrenheit != STOP_VALUE );

  printf("Thank you for using my program.\n");

  return 0;
}