Scratch

if it's a string it will evaluate to zero. So you could allow storing any number except zero and then test if (item n of list = 0).

As said above, you can't really use letters as they will equal 0. However, when you are adding to the list, use numbers to represent the thing you are adding.

For example:

A = 1
B = 2

fullmoon wrote:

deerel wrote:

So a bulletproof solution allowing zeros would be "item=0 and item+1=0"?
It supposes that addition appends the second operand when the first is string.

Nice solution!

I am one of those elegance-and-beauty-is-the-most-important-in-the-code freaks :-)

Last edited by deerel (2008-11-04 18:03:47)