some confusion on where to insert the "static_cast"

[j3tt]

I'm just now learning to use functions. I know I probably put the static_cast converter in the wrong places, can anyone direct me>



//Converts a Fahrenheit temperature
//to a Celsius temperature


#include <iostream>
#include <iomanip>

using std::cout;
using std::cin;
using std::endl;
using std::setprecision;
using std::fixed;

//function prototypes
double getFahrenheit ();
int calcCelsius(double, int);

int main()
{
double fahrenheit = 0.0;
int celsius = 0;

fahrenheit = getFahrenheit ();
celsius = calcCelsius ();

cout << fixed << setprecision(0);

return 0;
} //end of main function

//*****function definitions*****
double getFahrenheit()
{
double fahrenheit = 0.0;
cout << "Enter Fahrenheit temperature: ";
cin >> static_cast<int>(fahrenheit);
return fahrenheit;
}
int calcCelsius (double fahrenheit)
{
int celsius = 0;
celsius = static_cast<double>(fahrenheit)5.0/9.0 * (fahrenheit - 32.0);
return celsius;
}

[Bazzy]

cin >> static_cast<int>(fahrenheit); Why are you doing this? Just cin >> fahrenheit; ( >> needs lvalues )

static_cast<double>(fahrenheit) You don't need this as fahrenheit is already a double

[j3tt]

I'm trying to convert the degrees in double fahrenheit to degrees in int celsius, i'm just not sure where to convert

[Bazzy]

You don't need any casting, remove all the casting stuff and run your program.

[j3tt]

yes you do. i'm getting conversion errors

[Bazzy]

This is your code without that damned casting stuff a few other corrections. It works fine

#include <iostream>
#include <iomanip>

using std::cout;
using std::cin;
using std::endl;
using std::setprecision;
using std::fixed;

//function prototypes
double getFahrenheit ();
int calcCelsius(double);

int main()
{
    double fahrenheit = 0.0;
    int celsius = 0;

    fahrenheit = getFahrenheit ();
    celsius = calcCelsius (fahrenheit);

    cout << fixed << setprecision(0) << celsius;

    return 0;
} //end of main function

//*****function definitions*****
double getFahrenheit()
{
    double fahrenheit = 0.0;
    cout << "Enter Fahrenheit temperature: ";
    cin >> fahrenheit;
    return fahrenheit;
}
int calcCelsius (double fahrenheit)
{
    int celsius = 0;
    celsius = 5.0/9.0 * (fahrenheit - 32.0);
    return celsius;
}

[j3tt]

Owesome!
Thank you Bazzy!
I hate using that static_cast stuff