Re: Getting the units of a number

From: Peter van Merkerk (merkerk_at_deadspam.com)
Date: 10/23/03 

Date: Thu, 23 Oct 2003 14:57:42 +0200

> I need to get the units of a number.
>
> i.e. if I had 12345 then I would want '5'.
>
> I was looking at dividing the number by ten and using the modulus
> operator repeatedly until I had only the units, but wondered if there
> was an easier way?

The loop could do without the modulus operator:

   int number = ....
   int units = 0;
   while(number)
   {
      units++;
      number/=10;
   }

One other way to do it would be to use log10():

    int units = log10(number) + 1; // number must be > 0 

--
Peter van Merkerk
peter.van.merkerk(at)dse.nl

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