I don't know if Dave said that or not, but the statement is correct. In general, I just always use Duplicate. Perhaps structcopy is 0.0000001% faster, but to be honest, I'd rather just use Duplicate() which I know will always work right.
Bare in mind that CF 4.5 had a.... um, 'issue' with Duplicate. You can download a hotfix for it though. ======================================================================= Raymond Camden, Principal Spectra Compliance Engineer for Macromedia Email : [EMAIL PROTECTED] Yahoo IM : morpheus "My ally is the Force, and a powerful ally it is." - Yoda > -----Original Message----- > From: Christopher Olive [mailto:[EMAIL PROTECTED]] > Sent: Monday, November 12, 2001 10:21 AM > To: CF-Talk > Subject: RE: Request Scope Questions > > > if i understand correctly, a week or so ago you (dave) mentioned that > duplicate was only necessary for a session structure if it contained > other complex variables. you said that StructCopy was > sufficient if it > was merely a structure with simple variables. is this correct? > > christopher olive, cto, vp of web development > cresco technologies, inc > 410.825.0383 > http://www.crescotech.com > > > -----Original Message----- > From: Dave Watts [mailto:[EMAIL PROTECTED]] > Sent: Sunday, November 11, 2001 5:00 PM > To: CF-Talk > Subject: RE: Request Scope Questions > > > > A couple of notes here: if you do this, use something like > > > > <cfset request.var=Duplicate(session.var)> > > > > to transfer the variable. If you don't use Duplicate() - correct > > me if I'm wrong someone! - then request.var just becomes a > 'pointer' > > to session.var, and session.var is still actually read when you > > refer later to request.var (rendering the whole business kind of > > redundant!). Duplicate() - which is only available in CF4.5+ - > > makes request.var a 'deep' copy of session.var, and then > request.var > > technically has nothing to do with session.var except having the > > same value. > > It's only necessary to use Duplicate in this case if Session.var is a > structure or a query. If it's just a simple value, you don't need to > worry - > simple values are always passed by value, not by reference. > > Dave Watts, CTO, Fig Leaf Software > http://www.figleaf.com/ > voice: (202) 797-5496 > fax: (202) 797-5444 > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
