On 06/30/2013 08:14 PM, Florian Klämpfl wrote:
It matters when people make assumptions when the a temp.
If an interface indeed is used as an "interface" externally of the program, Destroying it might result in a crash when the external program writes something back to the interface object (because it had been provided with a pointer so a field in same) later.
(I know of something similar when a friend of mine used a call to a (converted) c library to an external system. Here a var parameter was provided that (not "obviously") provided a pointer the the external system. The actual variable was just a local variable and thus on the stack. Now the external system stored the pointer and minutes after the call had been executed it decided to save some value at that location making the pascal application crash.)
Do you think something like that could happen with ref counted objects (that unlike interfaces can't be associated with external stuff) ?
-Michael -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
