[cfe-dev] Host compiler requirements: Dropping VS 2008, using C++11?

[Aaron Ballman]

I'm in favor of dropping VS 2008 support (in fact, I thought we had
already talked about doing that, but perhaps I am remembering
incorrectly).

I think C++11 support should be a separate discussion than dropping VS
2008 support because it's likely to be a bit more in-depth, but I'm in
favor of it.

~Aaron

On Sat, Jul 6, 2013 at 12:05 PM, Ahmed Bougacha
<ahmed.bougacha at gmail.com> wrote:
> Hi all,
>
> A few days ago, there was a report of LLVM not compiling on VS 2008,
> because of asymmetric std::lower_bound comparators not supported
> there.
>
> As noted by a few people, maybe it's time to drop VS 2008
> compatibility and move the requirements to VS 2010?
>
> While there, what about going further and starting using C++11? Now
> seems as good a time as ever; my takeaway from that few months old
> discussion was that once 3.3 is released, it would be reasonable to
> start using features supported by VS2010 / gcc-4.4 / clang-3.1. That
> would be now, are there any objections left?
>
> -- Ahmed
>
> On Sat, Jul 6, 2013 at 1:02 AM, Tim Northover <t.p.northover at gmail.com> wrote:
>>
>> > There is some historical precedence for fixing the problem with VS
>> > lower_bound by changing the LLVM source - when I first got LLVM to compile
>> > with Visual Studio, patches for unsymmetric operator < were accepted into
>> > the LLVM repo, and I believe it's been done several times after that as
>> > well.
>>
>> In the C++11 discussion back in January
>> (http://llvm.1065342.n5.nabble.com/Using-C-11-language-features-in-LLVM-itself-td53319.html)
>> there seemed to be some kind of consensus for 2010 being a reasonable
>> minimum. Perhaps this is a good time to break compatibility
>> officially.
>>
>> Actually, whatever did happen to using C++11? No-one mentioned
>> anything about it after that thread.
>
> Valid points, raised in the commit thread. Changed the subject to get
> people's attention!
>
>>
>> Tim.
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