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Message-ID:	<F10D23B02E54D011A0AB0020AF9CEFE999EE8B@lynx.ceddec.com>
From:	"Town, Brad" <btown AT ceddec DOT com>
To:	"'Donald Brinkman'" <brinkman AT omi DOT com>,
	"'cygwin AT cygwin DOT com'"
	<cygwin AT cygwin DOT com>
Subject:	RE: cv-quals lack an intervening 'const'
Date:	Thu, 7 Dec 2000 16:39:32 -0500
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2653.19)

Donald,
	First, a cv-qualifier is a "const", "volatile", or "const volatile"
qualifier on a type.  (If you have access to the C++ standard, it's in
section 3.9.3.)
	Second, your trouble is because gcc is being a little more strict
than the other compiler.  You need to add a "const" between the two *'s in
the return definition of the function.  Or, add "typedef Foo** PPFoo" or the
like and use that whenever you need to use the pointer-to-pointer-to-Foo.

Brad Town


> -----Original Message-----
> From: Donald Brinkman [mailto:brinkman AT omi DOT com]
> Sent: Thursday, December 7, 2000 4:21 PM
> To: cygwin AT sourceware DOT cygnus DOT com
> Subject: cv-quals lack an intervening 'const'
> 
> 
> Hello all . . .
> 
> I have been given the task of porting a small project from an IRIX
> environment into a visual c++ compatible library.  To 
> accomplish this I
> decided to use Cygwin, since it has such nice utilities for 
> creating DLLs.
> Everything has been going fine, with only a few changes here 
> and there,
> until I stopped dead on this problem.  Given the member function:
> 
> const Foo** FooBar::getA() const
>         {
>         return ( A )
>         }
> 
> where A is a const Foo**
> 
> I get the following message:
> 
> Return to const Foo** from Foo **const adds cv-quals without 
> intervening
> 'const'.
> 
> 
> Now, please, can someone tell me just what a cv-qual is and 
> why the compiler 
> complains about this on Cygwin with gcc but not on IRIX with 
> cc? Any help
> would be greatly appreciated.
> 
> Donald Brinkman
> 
> 
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