Hi, I am supposed to write code for a program that calculates the wind chill index based on the temperature and wind speed entered by the user. Then I have to use a void function which has to "cout" the effect based on the windchill. I can get the program to output the windchill but can't get the void function to work. Please help. Thanks!
Code:
#include <iostream>
#include <cmath>
using namespace std;
double windchill_calculator(double temperature, double windspeed);
void effect(double windchill);
int main()
{
double w;
double temperature;
double windspeed;
do
{
cout << "Enter the air temperature in degree Celsius: ";
cin >> temperature;
cout << "Enter the wind speed in kilometres per hour (km/h): ";
cin >> windspeed;
if (windspeed < 0)
cout << "The windspeed must be greater or equal to 0"<< endl<< endl;
} while (windspeed < 0);
if (windspeed > 4.8)
w = windchill_calculator(temperature, windspeed);
else if (windspeed >= 0 && windspeed <= 4.8)
w = temperature;
cout << "The wind chill index is " << w << endl;
effect(w);
}
double windchill_calculator(double temperature, double windspeed)
{
double windchill = 13.12 + (0.6215*temperature) - (11.37*(pow(windspeed,0.16))) + (0.3965*temperature*pow(windspeed,0.16));
return windchill;
}
void effect(double windchill)
{
if (windchill >= 0 && windchill < -25)
{
cout<< "Discomfort"<< endl;
}
else if (windchill >= -25 && windchill < -45)
{
cout<< "Risk of skin freezing (frostbite)"<< endl;
}
else if (windchill >= -45 && windchill < -60)
{
cout<< "Exposed skin may freeze within minutes"<< endl;
}
else if (windchill >= 60)
{
cout<< "Exposed skin may freeze in under 2 minutes"<< endl;
}
return;
}