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Subject: Re: [boost] Windows XP support survey
From: Stephan T. Lavavej (stl_at_[hidden])
Date: 2015-05-06 14:01:23

[Niall Douglas]
> Also, the compatibility toolsets you mention target a much older STL and C++ support level.
> VS2015 claims it should be a 99% C++ 11 compliant implementation, so it will be the first MSVC where all C++
> 11 codebases should reasonably expect to "just work", constexpr and all. That certainly can never target XP.

That's incorrect. 2015's XP targeting has the same level of C++11/etc. support as Vista+ targeting. (IIRC, the separate toolset is because a different Windows SDK is required.)

For example, I wrote a dedicated implementation of call_once() for XP, avoiding Vista's InitOnceExecuteOnce that is used otherwise.


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