I think it depends on if you will be making modification to the passed structure. For instance, I pass a DSN struct around a lot, but that will never change. Its only a reference struct, so I don't feel the need to duplicate it.
However, if I am passing a struct that may be altered within component, or method, I would pass in a duplicate (as part of the method call) rather than duplicate it once I am in the method call. I would say never make the method worry about validating passed data like that. ....................... Ben Nadel Web Developer Nylon Technology 6 West 14th Street New York, NY 10011 212.691.1134 212.691.3477 fax www.nylontechnology.com "Vote for Pedro" -----Original Message----- From: Andy [mailto:[EMAIL PROTECTED] Sent: Thursday, December 01, 2005 2:00 AM To: CF-Talk Subject: Structure arguments and Duplicate When passing structures as arguments and return variables, when should duplicate be used? When do I need to be concerned that CF passes pointer to original versus copy. For example: Function Foo argument fooArg set var workingFoo = arguments.fooArg return workingFoo OR Function Foo argument fooArg set var workingFoo = duplicate(arguments.fooArg) return duplicate(workingFoo) OR duplicate only on original set OR duplicate only on return And since CF passes pointer versus duplicate, which of these 2 sets is best: set workingFoo = doSomething(workingFoo) OR just doSomething(workingFoo) Since any changes made directly to arguments.workingFoo will also be done to workingFoo in the calling function.... As you can tell, I am FUBAR'd Andy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:225812 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
