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Subject: Re: [boost] [Serialization] BOOST_CLASS_EXPORT regression on SunCC
From: Emil Dotchevski (emildotchevski_at_[hidden])
Date: 2009-02-17 13:28:07

On Tue, Feb 17, 2009 at 9:43 AM, Sohail Somani <sohail_at_[hidden]> wrote:
> Emil Dotchevski wrote:
>> On Tue, Feb 17, 2009 at 7:27 AM, Sohail Somani <sohail_at_[hidden]> wrote:
>>> Ok, that is a start. Thanks.
>>> Still, why intentionally restrict portability even further when the
>>> alternative was not burdensome to begin with? I would have better luck
>>> implementing a portable export (the previous version) rather than
>>> figuring out hacks for each compiler.
>>> I think the export documentation should be modified to say (in big fat
>>> bold letters) that it should not be used in portable code.
>> I think it's better to deprecate BOOST_CLASS_EXPORT altogether.
> If the new policy is to only support specific compilers for this
> functionality, I would agree with that.
> Header ordering is a problem you can work around and still use the
> library. Compiler-specific hacks, not really.

I think there is a misunderstanding here.

"Header ordering" doesn't mean that BOOST_CLASS_EXPORT would be
portable. The compiler-specific hacks would be necessary no matter
what. The BOOST_CLASS_EXPORT problem is that the C++ standard allows
the compiler to strip away all of the instantiations it triggers, and
good compilers do it. The "hacks" exploit holes in that functionality.

Emil Dotchevski
Reverge Studios, Inc.

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