Is there a constraint that restricts my generic method to numeric types?

Question

Can anyone tell me if there is a way with generics to limit a generic type argument T to only:

• Int16
• Int32

Answer 1

I created a little library functionality to solve these problems:

Instead of:

public T DifficultCalculation(T a, T b)
{
    T result = a * b + a; // <== WILL NOT COMPILE!
    return result;
}
Console.WriteLine(DifficultCalculation(2, 3)); // Should result in 8.

You could write:

public T DifficultCalculation(Number a, Number b)
{
    Number result = a * b + a;
    return (T)result;
}
Console.WriteLine(DifficultCalculation(2, 3)); // Results in 8.

You can find the source code here: https://codereview.stackexchange.com/questions/26022/improvement-requested-for-generic-calculator-and-generic-number