Array Sorting

[Jarrett Billingsley]

"okibi" <okibi at ratedo.com> wrote in message 
news:f5b5a1$187u$1 at digitalmars.com...
> Hey,
>
> I was wondering if there is a way to sort three digit numbers.
>
> Doing an array.sort will result in a sequence such as this:
>
> 1
> 10
> 2
> 24
>
> What I want is it to get sorted like this:
>
> 1
> 2
> 10
> 24
>
> Is there an easy way to specify this? Putting a 0 in front is not an 
> option.
>
> Thanks!

I take it you have an array of strings.

Unfortunately the array .sort property does not allow you to use a custom 
sorting predicate, and phobos doesn't provide any predicate-using sort 
function like Tango does.  You can get by pretty well by using a struct 
array:

struct NumString
{
    char[] data;

    int opCmp(NumString* other)
    {
        int myNum = toInt(data);
        int otherNum = toInt(other.data);

        return myNum - otherNum;
    }
}

...

NumString[] arr = new NumString[10];
// fill it
arr.sort;
// tada

Or, you can write a function that will take an array and a sorting 
predicate, and do the sort yourself.  Or, you can use the C stdlib qsort 
(but that's not pretty at all).  Or use Tango.  Or use Cashew.  :)