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Re: [Patch, libstdc++/63920] Fix regex_constants::match_not_null behavior
- From: Daniel Krügler <daniel dot kruegler at gmail dot com>
- To: Tim Shen <timshen at google dot com>
- Cc: Paolo Carlini <paolo dot carlini at oracle dot com>, "libstdc++" <libstdc++ at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 19 Nov 2014 19:43:56 +0100
- Subject: Re: [Patch, libstdc++/63920] Fix regex_constants::match_not_null behavior
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2014-11-19 19:42 GMT+01:00 Tim Shen <timshen@google.com>:
> On Wed, Nov 19, 2014 at 8:16 AM, Paolo Carlini <paolo.carlini@oracle.com> wrote:
>> Good. To be clear, not having carefully analyzed whatsoever, my point was
>> more about changing _M_end too, to non-const, than about not touching
>> _M_begin. Would that make sense?
>
> Currently we never mutate _M_end. I *believe* that we still won't in
> the future, since _M_end is not as volatile as _M_begin.
I agree with Tim here, why shouldn't the const member and the
non-const member coexist?
- Daniel