I need help with type casting
How can I made the answer display 18 when I enter 0 for fahrenheit
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#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float fahrenheit;
float celsius;
cout << "Enter Fahrenheit: ";
cin >> fahrenheit;
celsius = 5.0 / 9 * (fahrenheit - 32);
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(0);
cout << "Celsius: " << static_cast<int>(celsius) << endl;
return 0;
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Last edited on
0 degrees fahrenheit in Celsius is -17.778 isn't it?
try http://www.cplusplus.com/reference/cmath/round/
> How can I made the answer display 18 when I enter 0 for fahrenheit
You do mean
-18 (rounded to the nearest whole number), don't you?
We can let the stream (
std::cout) do that for us.
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#include <iostream>
// using namespace std; // avoid
int main()
{
// float fahrenheit;
// float celsius;
double fahrenheit; // strongly favour double over float or long double
double celsius;
std::cout << "Enter Fahrenheit: ";
std::cin >> fahrenheit;
celsius = 5.0 / 9 * (fahrenheit - 32);
std::cout.setf(std::ios::fixed);
// cout.setf(ios::showpoint);
std::cout << std::noshowpoint ; // we do not want the decimal point to be printed
std::cout.precision(0);
// cout << "Celsius: " << static_cast<int>(celsius) << endl;
std::cout << "Celsius: " << celsius << '\n' ;
// return 0; // implicit
}
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Thank you so much all of you. That is just what I needed. I'm super grateful. I solved it. JLBorges that is what I wanted to do. I did it. Thanks.
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