[llvm] r221013 - Define LLVM_NOEXCEPT with MSVC 14 CTP 3 or newer

[David Majnemer]

Unconditional noexcept was added in VS2013 Nov CTP.  noexcept(expr) was
added in VS "14" CTP 1.

Sent from my phone.

On Friday, October 31, 2014, Reid Kleckner <reid at kleckner.net> wrote:

> Author: rnk
> Date: Fri Oct 31 18:02:40 2014
> New Revision: 221013
>
> URL: http://llvm.org/viewvc/llvm-project?rev=221013&view=rev
> Log:
> Define LLVM_NOEXCEPT with MSVC 14 CTP 3 or newer
>
> We have to use _MSC_FULL_VER here as CTP 2 and earlier didn't define
> noexcept to my knowledge.
>
> Fixes build error in lib/Support/Error.cpp when inheriting from
> std::error_category, which has a noexcept virtual method.
>
> Modified:
>     llvm/trunk/include/llvm/Support/Compiler.h
>
> Modified: llvm/trunk/include/llvm/Support/Compiler.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Compiler.h?rev=221013&r1=221012&r2=221013&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/Support/Compiler.h (original)
> +++ llvm/trunk/include/llvm/Support/Compiler.h Fri Oct 31 18:02:40 2014
> @@ -66,7 +66,7 @@
>  #define LLVM_MSC_PREREQ(version) 0
>  #endif
>
> -#ifndef _MSC_VER
> +#if !defined(_MSC_VER) || (defined(_MSC_FULL_VER) && _MSC_FULL_VER >=
> 190022129LL)
>  #define LLVM_NOEXCEPT noexcept
>  #else
>  #define LLVM_NOEXCEPT
>
>
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