Global Variables

I am having problems with defined GLOBAL variables.

e.g. I have defined a variable at the start of my main procedure

GLOBAL nInstall&

When I attempt to refer to this varaible in another procedure I get an "undefined variable" messgage when attempting to translate.

Can anyone help?

[kitebuggy]

Hi Liam,

My guess is that you have added "DECLARE EXTERNAL" to the top of your program, hoping to catch undefined variables and procedures at translate-time rather than run-time.

The only problem with this approach is that you have to then declare each variable to the parser, using "EXTERNAL <variable>".

See the OPL Wiki definitions for these commands:

http://www.allaboutopl.com/wiki/OPLWikiHome


I hope this helps.

Jason