> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of DrDiettrich > Sent: 01 March 2005 07:33 > To: FPC developers' list > Subject: Re: [fpc-devel] Improving Ref Counting > > > Jamie McCracken wrote: > > > A GC needs to trace an object's references to see if anything still > > points to it. How else can it decide whether an object is no > longer in use? > > GC starts from known alive object references, in static or local > variables, and follows the references in these objects to further > objects. Unused objects never occur in this search, so they need no > special marking or other treatment. > http://lists.freepascal.org/mailman/listinfo/fpc-devel
surely this also means 1: there has to be rtti for every field in every class so the compiler can follow the paths from the class 2: you can't safely cast between classes and untyped pointers or integers (because those refs would be invisible to the gc) 3: the GC can't work with pointers to things for every class _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
