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Old 15-06-2005, 10:29 AM
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Angry 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?
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Old 17-06-2005, 08:30 AM
kitebuggy kitebuggy is offline
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Declared externals.

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:

I hope this helps.

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