On Wed, May 26, 2021 at 5:46 PM Corentin Jabot via SG16 <
sg16_at_[hidden]> wrote:

>
>
> On Wed, May 26, 2021 at 11:01 PM Peter Brett via SG16 <
> sg16_at_[hidden]> wrote:
>
>> Hi all,
>>
>> I prepared these 2 polls for tonight's meeting, but we did not have the
>> opportunity to vote on them. I hope we will be able to vote on them next
>> time. Please suggest alternative or additional polls that you think would
>> be informative!
>>
>> Peter
>>
>>
>> If, and only if, the literal encoding is UTF-8, <print> facilities should
>> assume
>> that their formatted results are UTF-8 text.
>>
>> SF F N A SA
>>
>> Attendance:
>>
>> Consensus:
>>
>> Author's position:
>>
>>
>> If a <print> facility assumes that the result of formatting is UTF-8
>> text, but
>> it is not, then the program is ill-formed, no diagnostic required.
>>
>
> Please make it UB
>

+1


> IFNDR is really nasty and should be reserved for things that the compiler
> has no real control over like ODR issues.
>

IFNDR can only be applied based on the source code. IFNDR cannot be applied
depending on user input at run-time.


>
> Library has wording stating that preconditions violations are UB
> http://eel.is/c++draft/library#structure.specifications-3.3
> I think having wording along the line of "Precondition: The format string
> is UTF-8 encoded" in the wording of vprint_unicode is the best way to
> achieve this intent.
>

The above won't cover strings provided by the user for replacements (and
that's probably just the easiest case to identify).


>
>
>>
>> SF F N A SA
>>
>> Attendance:
>>
>> Consensus:
>>
>> Author's position:
>>
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