A function to return a sign

Question

I know this will really turn out to be simple, but my brain is just not working. I need a function in C# that will return -1 if the integer passed to the function has a nega

Answer 1

public int SignFunction( int input )
{
    if( input < 0 ) return -1;
    if( input > 0 ) return 1;
    return 0;
}