Struct with default ctor (Was: [dmd-beta] dmd 2.064 beta take 2)

Walter Bright newshound2 at digitalmars.com
Sat May 18 11:42:32 PDT 2013


On 5/18/2013 4:13 AM, Simen Kjaeraas wrote:
> On Sat, 18 May 2013 09:14:30 +0200, Walter Bright <newshound2 at digitalmars.com>
> wrote:
>
>> On 5/18/2013 12:08 AM, deadalnix wrote:
>>> On 5/17/13, Walter Bright <walter at digitalmars.com> wrote:
>>>> I oppose this. D has a lot of nice features because of the .init property.
>>>> Default constructors wreck that.
>>>
>>> So much great feature like :
>>>   - null all over the place.
>>>   - Having NUllable and NonNullable in phobos. BTW, NonNullable is unable to
>>> ensure that it if effectively non nullable.
>>>   - Having to check for .init state all over the place (which have a runtime
>>> cost, in addition to be error prone). RefCounted implementation is emblematic of
>>> that.
>>
>> What default would you use for non-null pointers?
>
> Damnit, I thought we'd gotten through to you. non-null pointers have no
> default, and it is a compile-time error not to initialize them.
>

See my reply to deadalnix.


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