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Date: Mon, 17 Sep 2018 20:05:00 -0000
From: Marc Glisse <marc.glisse@inria.fr>
To: Jonathan Wakely <jwakely@redhat.com>
cc: Ville Voutilainen <ville.voutilainen@gmail.com>,     libstdc++ <libstdc++@gcc.gnu.org>,     gcc-patches List <gcc-patches@gcc.gnu.org>
Subject: Re: vector<bool> _M_start and 0 offset
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References: <alpine.DEB.2.02.1809151309440.6584@stedding.saclay.inria.fr> <20180917154554.GP23172@redhat.com> <alpine.DEB.2.21.1809171945370.15883@stedding.saclay.inria.fr> <20180917185023.GQ23172@redhat.com> <CAFk2RUb6QCOWJi5enaaNYdv6m=QrBjicfJPy2jqc-MyiRajQCQ@mail.gmail.com> <20180917191002.GR23172@redhat.com> <alpine.DEB.2.21.1809172113510.15883@stedding.saclay.inria.fr> <alpine.DEB.2.21.1809172123080.15883@stedding.saclay.inria.fr> <20180917193648.GU23172@redhat.com>
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On Mon, 17 Sep 2018, Jonathan Wakely wrote:

> On 17/09/18 21:24 +0200, Marc Glisse wrote:
>> On Mon, 17 Sep 2018, Marc Glisse wrote:
>> 
>>> On Mon, 17 Sep 2018, Jonathan Wakely wrote:
>>> 
>>>>> Do other compilers besides gcc suppress the same way?
>>>> 
>>>> No, clang doesn't:
>>> 
>>> What version is that? I didn't test on this exact patch, but clang 6 and
>>> 7 print, for similar code:
>>> 
>>> warning: generalized initializer lists are a C++11 extension
>>>     [-Wc++11-extensions]
>> 
>> Ah, with the exact code I do get an error indeed. I'll change the code :-(
>
> Thanks. I feel your pain, but I think we'd need a better reason to
> break it (the valid C++98 code is uglier but not too painful).
>
> The cbegin() change can still use C++11 syntax.

I think I'd rather keep the 3 lines identical, or make cbegin() call
begin().

-- 
Marc Glisse