Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Programming > C++ Moderated > Re: Destructor ...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 16 of 16 Topic 9528 of 9830
Post > Topic >>

Re: Destructor not called with forward declaration instead of include

by Vidar Hasfjord <vattilah-groups@[EMAIL PROTECTED] > Apr 27, 2008 at 07:44 AM

On Apr 26, 3:42 pm, Seungbeom Kim <musip...@[EMAIL PROTECTED]
> wrote:
> You mean, when the type is incomplete but has a trivial destructor?
> Does that help much? What do we lose by requiring the type to be
> complete at a 'delete' expression with a pointer to that type?
> (On the other hand, we gain a lot of correctness assurance!)

Agree. I don't see it as an enabling feature. But undoubtedly you will
break some code, if you forbid it.

> >    virtual class Clazz; // I have a virtual destructor, promise!
> I guess the compiler may need the complete class definition even
> just to invoke the virtual destructor; e.g. it has to know which
> entry in the vtable represents the destructor.

Which seems a surmountable implementation problem, though it may
create an ABI compatibility problem.

Regards,
Vidar Hasfjord


-- 
      [ See http://www.gotw.ca/resources/clcm.htm
for info about ]
      [ comp.lang.c++.moderated.    First time posters: Do this! ]
 




 16 Posts in Topic:
Destructor not called with forward declaration instead of includ
internetpet <internetp  2008-04-21 20:43:18 
Re: Destructor not called with forward declaration instead of in
=?ISO-8859-1?Q?Daniel_Kr=  2008-04-22 10:54:58 
Re: Destructor not called with forward declaration instead of in
Triple-DES <DenPlettfr  2008-04-22 10:52:59 
Re: Destructor not called with forward declaration instead of in
Travis Vitek <travis.v  2008-04-22 10:53:33 
Re: Destructor not called with forward declaration instead of in
marlow.andrew@[EMAIL PROT  2008-04-22 11:07:11 
Re: Destructor not called with forward declaration instead of in
Maciej Sobczak <see.my  2008-04-22 11:13:17 
Re: Destructor not called with forward declaration instead of in
alasham.said@[EMAIL PROTE  2008-04-22 11:18:19 
Re: Destructor not called with forward declaration instead of in
Brendan <catphive@[EMA  2008-04-22 11:13:28 
Re: Destructor not called with forward declaration instead of in
nickf3 <nickf3@[EMAIL   2008-04-22 11:43:17 
Re: Destructor not called with forward declaration instead of in
Alan Johnson <awjcs@[E  2008-04-22 11:43:18 
Re: Destructor not called with forward declaration instead of in
peter koch larsen <pet  2008-04-22 15:22:47 
Re: Destructor not called with forward declaration instead of in
Vidar Hasfjord <vattil  2008-04-23 13:13:18 
Re: Destructor not called with forward declaration instead of in
Triple-DES <DenPlettfr  2008-04-23 13:13:15 
Re: Destructor not called with forward declaration instead of in
Seungbeom Kim <musiphi  2008-04-26 08:42:07 
Re: Destructor not called with forward declaration instead of in
Carl Barron <cbarron41  2008-04-27 07:01:39 
Re: Destructor not called with forward declaration instead of in
Vidar Hasfjord <vattil  2008-04-27 07:44:19 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Fri Jul 25 15:46:23 CDT 2008.