parameter variables question

[Alex Rice]

On Tuesday, July 29, 2003, at 04:26  PM, Dar Scott wrote:
>>
>> tSomeNonexistentVariable gets evaluated as a string, so that's what's 
>> in p2, which is why the "+" operation fails on the RHS.
>
> What's more important is that string is empty, as in "", and that is 
> not a numeral and can't be interpreted as a number.

put empty + empty
--> 0

Actually in my example, p2 is not empty, it's literally the string 
"tSomeNonexistentVariable". I am now checking if the parameters are 
integers, before summing them.

Alex Rice, Software Developer
Architectural Research Consultants, Inc.
http://ARCplanning.com