>From: "Gennaro Prota" <[EMAIL PROTECTED]> > On Sat, 09 Nov 2002 21:00:00 -0500, David Abrahams > <[EMAIL PROTECTED]> wrote: > > >The RVO doesn't fall into the category of back-end or > >intermediate-language optimizations that compilers usually let you > >turn on and off. It has to happen in the front-end, since it often > >implies observable differences in the code's behavior. > > Well, I'm not a compiler expert, but several compilers have switches > that actually control the front-end. So there could be one for > NRVO/URVO too. Or is there any other reason which prevents that?
Since, as Dave said, it may change the observable behaviour, it's perhaps not such a good idea to have an optimisation switch that changes the observable behaviour. That could be confusing. Regards, Terje _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
