public double ToDouble()
{
if (IsNaN(this))
{
return(double.NaN);
}
if (Exponent > DoubleExpMax)
{
return(Mantissa > 0 ? double.PositiveInfinity : double.NegativeInfinity);
}
if (Exponent < DoubleExpMin)
{
return(0.0);
}
//SAFETY: again, handle 5e-324, -5e-324 separately
if (Exponent == DoubleExpMin)
{
return(Mantissa > 0 ? 5e-324 : -5e-324);
}
var result = Mantissa * PowersOf10.Lookup(Exponent);
if (!IsFinite(result) || Exponent < 0)
{
return(result);
}
var resultrounded = Math.Round(result);
if (Math.Abs(resultrounded - result) < 1e-10)
{
return(resultrounded);
}
return(result);
}
