Get number of digits before decimal point

Question

I have a variable of decimal type and I want to check the number of digits before decimal point in it. What should I do? For example, 467.45 should

Answer 1

Algorithm:

• Convert |decimal| to String.
• If "." exist in the decimal, cut before it, otherwise consider the whole number.
• Return string length.

Example:

3.14 --> 3.14 --> "3.14" --> "3.14".Substring(0,1) --> "3".Length --> 1

-1024 --> 1024 --> "1024" --> IndexOf(".") = -1 --> "1024" --> 4

Code:

static int getNumOfDigits (decimal num)
{
    string d = Math.Abs(num).ToString();

    if (d.IndexOf(".") > -1)
    {
        d = d.Substring(0, d.IndexOf("."));
    }

    return d.Length;
}