Ping - this is a tentative reminder for this patch proposal.

2015-12-23 22:15 GMT+01:00 Daniel Krügler <daniel.krueg...@gmail.com>:
> This is a second try for a patch for libstdc++ bug 68877. See below
> for responses.
>
> 2015-12-22 22:42 GMT+01:00 Jonathan Wakely <jwak...@redhat.com>:
>> On 21/12/15 12:45 +0100, Daniel Krügler wrote:
>>>
>>> 2015-12-14 21:48 GMT+01:00 Daniel Krügler <daniel.krueg...@gmail.com>:
>>>>
>>>> This is a reimplementation of __is_swappable and
>>>> __is_nothrow_swappable according to
>>>>
>>>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4511.html
>>>>
>>>> and also adds a missing usage of __is_nothrow_swappable in the swap
>>>> overload for arrays. Strictly speaking the latter change differs from
>>>> the Standard specification which requires the expression
>>>> noexcept(swap(*a, *b)) to be used. On the other hand the Standard is
>>>> broken in this regard, as pointed out by
>>>>
>>>> http://cplusplus.github.io/LWG/lwg-active.html#2554
>>
>> The patch doesn't apply cleanly because it repeats some of the new
>> files either twice or three times (and also has some trailing
>> whitespace that shouldn't be there).
>
> I can confirm this, albeit I don't understand why this happens. I'm
> using TortoiseSVN and when trying to create a patch file it creates
> double entries for new directories. I have now explicitly removed the
> added directories from the patch, I hope that your patch experience is
> now better.
>
>> After fixing the patch to only
>> create new files once it applies, but then I get some FAILs:
>>
>> FAIL: 20_util/is_nothrow_swappable/value.cc (test for excess errors)
>> FAIL: 20_util/is_swappable/value.cc (test for excess errors)
>>
>> I don't have time to analyse these today, so I'll wait until you're
>> able to do so.
>
> I'm sorry for these errors. I could now find a way to reproduce the
> tests and found that they were partially due to an incomplete commit
> and partially because of sleepiness on my side. I hopefully fixed
> these blatant errors and took the chance to increase the test cases
> even further.
>
> Thanks again,
>
> - Daniel



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