"with" should be deprecated with extreme prejudice

[Don]

Andrei Alexandrescu wrote:
> BCS wrote:
>> Hello Andrei,
>>
>>> BCS wrote:
>>>
>>>> Hello Andrei,
>>>>
>>>>> Robert Fraser wrote:
>>>>>
>>>>>> This. Just issue an error/warning if something in the with shadows
>>>>>> something outside. That way, if the struct/class/template/whatever
>>>>>> changes, affected code will be notified.
>>>>>>
>>>>> No warning, error!
>>>>>
>>>> warning if it exist, error if used?
>>>>
>>> I go with Walter's stance: either compiles or not. Warnings suck.
>>>
>>> Andrei
>>>
>>
>> warningd are optional and off by default.
> 
> And that doesn't help either!
> 
> Andrei

If warnings exist, libraries must not do anything that creates a 
warning. They are NOT optional. Warnings suck.