Question:

Modify the driver, main(), to prompt the user to enter a temperature in Fahrenheit, convert the value using the function and print the result. The driver should loop asking the user for input until a special data value is entered. Since 0 is a valid Fahrenheit temperature, we need something else. Physics tells us that no temperature can be lower than absolute zero (-273 degrees C, or -459 degrees F), let's use -500 as the special data value to terminate Fahrenheit input. Your file will be called temperature.c.

This is what i have right now, and I dont know how I should end this while loop. When I run the program, it just keep printing the degree in celsius and never stop in the background. Thanks in advance!!!

float tocelsius(float fahrenheit);

int main()

{

float celsius;

float fahrenheit;

float degree = 1;

/* this is a while loop and it will continue until some specific value is entered.

*/

while (degree ==1)

{

printf("Enter the degree in Fahrenheit: " );

scanf("%.2f,&fahrenheit");

/* convert fehrenheit to celsius */

celsius = tocelsius(fahrenheit);

/* print the result */

printf("the degree in celsius is %.2f ",celsius);

printf("Please enter the degree in Fahrenheit again: ");

scanf("%.2f,&fahrenheit");

}

/* compute the degree in Fahrenheit */

printf("enter the degree in Fahrenheit: ");

scanf("%f",&fahrenheit);

/* convert fehrenheit to celsius */

celsius = (fahrenheit - 32) * 5/9;

/* print the result */

printf("the degree in celsius is %.2f ", celsius);

}