Hi

I'm trying to prep some values for a multi-column sort in an array.
The array contains something like 300,000 by 10 values
I've seen quick sort routines that can sort on a single value, but not
perform sorts within the initial sort.

My idea was to concatenate all my values into a single value and then
sort on it. The problem I'm facing is that my numbers would have to be
on the order of ~10E+18-1 long

The way the routine works is it looks at the numbers in each column
whose length is fixed and never has a situation where there are
leading zeros to cause problems.

Col 1 Col 2 Col 3 Col 4 Col 5 Col 6
Row x: aaa bbb cc ddddd e fff

I only need to arrange based on these 6 columns not the entire 10 in
the array

My problem is when I create a number like aaabbbccdddddefff it appears
to have
problems with the "efff" portion. I checked each individual component
(which I'm multiplying by some 1nnnn where n is some number of zeros -
and they all work fine, its just once I tried to add things. Its like
it drops values off.
I have the variables defined as Double which I thought would work.

Any thoughts?