>>>>> "Dave" == Dave Korn <[EMAIL PROTECTED]> writes:
>> On 13 August 2007 22:16, David Orchard wrote: >> Some base classes (specifically thread base classes) would benefit from >> being able to execute a function after the object is constructed and before >> it is destructed. For a thread class the thread can't start until after the >> object is constructed and must stop before the object is destructed. Dave> Well, how about "Deriving a subclass, overriding the c-tor and Dave> d-tor and calling a hook function after/before calling the base Dave> class' c/d-tor are all fundamental C++ language features that Dave> already exist within the standard syntax" for starters? I'm not Dave> sure what you hope to achieve by this added synactic complexity. I think he wants a guarantee that the hook method will be called after all the subclass constructors have been run. AFAIK there's no way to do this in standard C++. When I've had to do things like this I've either added runtime assertions, or I've redesigned the hierarchy; the latter on the theory that subclassing is fragile when the base class needs a lot of control over what the subclasses do. Tom
