public static void Create_FromInteger()
{
var value = (SqlNumber)45993;
Assert.True(value.CanBeInt32);
Assert.True(value.CanBeInt64);
Assert.Equal(0, value.Scale);
Assert.Equal(5, value.Precision);
Assert.False(SqlNumber.IsNaN(value));
Assert.False(SqlNumber.IsNegativeInfinity(value));
Assert.False(SqlNumber.IsPositiveInfinity(value));
Assert.Equal(1, value.Sign);
}
public static void Create_FromDouble()
{
var value = (SqlNumber)459935.9803d;
Assert.False(value.CanBeInt32);
Assert.False(value.CanBeInt64);
Assert.Equal(10, value.Scale);
Assert.Equal(16, value.Precision);
Assert.False(SqlNumber.IsNaN(value));
Assert.False(SqlNumber.IsNegativeInfinity(value));
Assert.False(SqlNumber.IsPositiveInfinity(value));
Assert.Equal(1, value.Sign);
}
private SqlNumber ToDecimal(SqlNumber number)
{
if (SqlNumber.IsNaN(number))
{
return(SqlNumber.NaN);
}
if (SqlNumber.IsNegativeInfinity(number))
{
return(SqlNumber.NegativeInfinity);
}
if (SqlNumber.IsPositiveInfinity(number))
{
return(SqlNumber.PositiveInfinity);
}
var thisDiff = Precision - Scale;
var otherDiff = number.Precision - Scale;
if (thisDiff == otherDiff)
{
return(number);
}
var value = number.innerValue;
if (thisDiff > otherDiff)
{
value = BigMath.Scale(value, Scale);
}
else
{
value = BigMath.Scale(value, Scale - thisDiff);
}
return(new SqlNumber(SqlNumber.NumericState.None, value));
}