Suicidal objects

[Sean Kelly]

Jarrett Billingsley wrote:
> "Sean Kelly" <sean at f4.ca> wrote in message 
> news:fjjpgq$2t9c$3 at digitalmars.com...
> 
> http://www.digitalmars.com/d/archives/digitalmars/D/Inheriting_constructors_54088.html
>> In short, there's no easy way to perform placement new on an existing 
>> class, and I view this as a deficiency.  My proposal would provide one 
>> easy way to do so, but I still feel that making it automatic would be 
>> preferable.
> 
> With __traits, we can now get the size of a class instance and the overloads 
> of the constructor (I think?).  I think that's about all you'd need, no? 

Yeah, but it would still be a bit awkward to use __traits to obtain the 
size, allocate, then use __traits to call the proper ctor by name on the 
new block or whatever.  Placement new is so generally useful that it 
should really just be supported by the language.


Sean