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Subject: Re: [boost] Windows XP support survey
From: Edward Diener (eldiener_at_[hidden])
Date: 2015-05-07 22:47:56

On 5/7/2015 10:27 PM, Matt Calabrese wrote:
> On Thu, May 7, 2015 at 5:40 PM, Niall Douglas <s_sourceforge_at_[hidden]>
> wrote:
>> I'd have thought replacing the preprocessor probably just about the
>> easiest compiler mod possible. We can even do it ourselves by getting
>> winclang to feed preprocessed output to MSVC for us!
> That's why I said "for other reasons." It'd be simple to just swap out the
> preprocessor with a compliant one, but that breaks tons of code including
> code in windows headers. Even the clang-cl effort tries to mimic funky MSVC
> preprocessor behavior such that it is feasible to use in a windows system.
> I'm pretty sure that in the past Microsoft has explicitly stated that they
> have absolutely no plans of ever fixing their preprocessor, but I remain
> hopeful that it will be fixed eventually.Unfortunately it tends to only be
> people like boost developers who really care, and Boost.Preprocessor bends
> over backwards to support MSVC anyway, so there's not enough incentive for
> Microsoft to do anything.

Boost.VMD has workarounds for the non-compliant VC++ preprocessor also.

I have been told that Microsoft has said once again that they will
create a standard C++ preprocessor.

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