Re: [boost] [circular_buffer] Patch to fix two-phase name lookup issue in space_optimized

Subject: Re: [boost] [circular_buffer] Patch to fix two-phase name lookup issue in space_optimized
From: Doug Gregor (doug.gregor_at_[hidden])
Date: 2010-04-21 10:53:46

On Tue, Apr 20, 2010 at 11:36 PM,  <joaquin_at_[hidden]> wrote:
> Doug Gregor escribió:
>>
>> Hello Boosters,
>>
>> In the space_optimized circular buffer, the two calls to
>> invalidate_iterators_except require a preceding "this->". The actual
>> invalid_iterators_except() function is only accessible through a
>> dependent base, so we need to make the invalid_iterators_except name
>> dependent. The DEC compiler tried to tell us this at one point, but we
>> ignored it.
>>
>> Patch is attached.
>>
>>  - Doug
>>
>
> # if BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(70190006))
>        this->invalidate_iterators_except(end());
> # else
>       invalidate_iterators_except(end());
> # endif
>
>
> Why propose that the this-> branch be a workaround? If I'm getting you,
> prepending this-> is standard-required and can't possibly do any harm for
> other compilers.

Perhaps you read the patch backward? The patch is changing the code to
always have "this->", as is required by the standard. Before the
patch, the code only provides "this->" for the DEC C++ compiler.

  - Doug