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List:       cfe-dev
Subject:    Re: [cfe-dev] MSVC RTTI implementation status
From:       Domagoj Saric <domagoj.saric () littleendian ! com>
Date:       2014-02-25 14:47:36
Message-ID: 530CAD08.60503 () littleendian ! com
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On 25.2.2014. 9:56, David Chisnall wrote:
> It would be really nice if you could turn RTTI generation on and off on
> specific classes (and have the setting propagated to inherited classes).  I'm
> working on some code where subclasses of exactly one class want to do
> dynamic_cast, and rather than implementing an ad-hoc RTTI-like mechanism, it
> would be great to just set an attribute saying '[indirect] subclasses of this
> class must have RTTI generated, even if the global setting is not'.

Yes, that'd be great...I pondered such ideas ever since I came across MSVC's 
__declspec( novtable ) (which Clang still does not support)...
In fact I consider it a language defect: there should be a standardized way to 
turn RTTI on or off on a per class and per hierarchy basis...


-- 
Domagoj Saric
Software Architect
www.LittleEndian.com
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