function not returning correct result

[yulz]

hi im trying to solve a problem in a book im reading and i cant get the correct answer

#include <iostream>
using namespace std;

float celsius(float);

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

	for (fahrenheit=0; fahrenheit<21; fahrenheit++) {
	cout<<celsius(fahrenheit) <<endl;
		
	}
	
    return 0;
}


float celsius(float fahrenheit){
	return 5/9*(fahrenheit-32);
}

it keeps returning zero in each loop

[hannes]

try using this:
return 5.0/9.0*(fahrenheit-32.0);

hannes

[yulz]

Thanks! It worked!