/* 
   Name: Fahrenheit temperature to Centigrade temperature
   Author: Dykstra
   Description: A program to translate the degree of Fahrenheit thermometer
                to the degree of Centigrade thermometer.
   Date: 2000-11-4
   Copyright: Dykstra
*/
#include <stdio.h>

#define SPACE (0x20)    // Marco definition

void wait(int key);     // Function prototype

int main(int argc, char *argv[])
{
    float centigrade, fahrenheit;

    printf("Please input the Fahrenheit degree :");
    scanf("%f", &fahrenheit);
    centigrade = (fahrenheit - 32) * 5 / 9;
    printf("Fahrenheit %g equals to Centigrade %g", fahrenheit, centigrade);

    wait(SPACE);
    return 0;
}

void wait(int key)
{
    int ch;

    while ((ch = getchar()) != key) ;
    return;
}