From: Eljay Love-Jensen <eljay@adobe.com>
To: svisor@lycos.com, gcc-help@gcc.gnu.org
Subject: Re: Inherited member( void )const - const to be or not to be
Date: Tue, 07 Sep 2004 17:10:00 -0000 [thread overview]
Message-ID: <6.1.2.0.2.20040907115841.02c9e0b0@iplan-mn.corp.adobe.com> (raw)
In-Reply-To: <chknvj$ca2$1@sea.gmane.org>
Hi Jarmo,
>name__more is not reserved.
Yes it is. ISO 14882 section 17.4.3.1.2.
>Usage of _Name is not recomended, but what I know not reserved.
Yes it is. ISO 14882 section 17.4.3.1.2.
>Do you have any link to a list of which combinations are reserved and
which are not?
Only by citing the section in the ISO 14882 standard. Note: I'm referring
to the 1998 one. I don't have the revised standard.
>NO! You _broke_ it! Now you return a pointer to constant, and thats _NOT_
what I wanted.
g++ -DCONST= foo.cpp
Then neither the pointer returned, nor the up-cast function are committing
to const protection.
>The question was more about cast from "this", like this:
Do this then:
virtual CProvider* getProvider() const { return const_cast<CProvider*>(this); }
Note: on my team, this code would not be acceptable in a code
review. Very dangerous. If you REALLY have to have a non-const futzing,
consider putting the functionality IN the class itself, so the class can
manipulate its own internal state in a "non-const" fashion via a const
method, yet retain logically const state. Otherwise, it's an egregious
violation of the const contract.
>I do not agree as thats not portable across all compilers.
It is portable across all C++ compilers that I use, and I use quite a few
different ones on a wide variety of platforms. It may not be portable
across some very old compilers.
It's also portable across all C++ compliant compilers. But that's not
saying much, because I don't think there are any fully ISO 14882 compliant
compilers available. (Hmmm, maybe EDG is fully compliant, I'm not sure.) :-)
Sincerely,
--Eljay
next prev parent reply other threads:[~2004-09-07 17:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-06 11:01 SVisor
2004-09-07 12:58 ` Eljay Love-Jensen
2004-09-07 16:35 ` SVisor
2004-09-07 17:10 ` Eljay Love-Jensen [this message]
2004-09-21 13:34 ` Claudio Bley
2004-09-21 13:41 ` Claudio Bley
2004-09-07 16:40 lrtaylor
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