Is enum static?
Maxim Fomin
maxim at maxim-fomin.ru
Thu Aug 8 20:58:21 PDT 2013
On Thursday, 8 August 2013 at 23:19:49 UTC, bearophile wrote:
> Ali Çehreli:
>
>> More than that. :) enums are manifest constants.
>>
>> Imagine that enum as being pasted into source code as is. This
>> used to have surprising effects for AAs, as an enum AA would
>> be instantiated from scratch everywhere that AA enum was used
>> in the code.
>
> I think that some time ago Don has proposed to disallow the
> 'enum' tag for things like AAs, on the base that such behavour
> is not efficient, surprising, and maybe even not useful... I
> don't know where his proposal has gone later.
>
> Bye,
> bearophile
Enum trick is useful to workaround bug with aggregate members of
reference types being initialized - all instances share reference
to same data and to enable default struct constructors.
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