On Sunday, 29 December 2013 at 18:27:16 UTC, Benjamin Thaut wrote:
No unfortunately not. You could solve the issue by adding
another level of indirection. So always allocate the additional
indirection, then its save to copy it, and then you can lazy
instaniate the actual instance when needed and all copies of
your wrapper will see the instance.
Kind Regards
Benjamin Thaut
Even with that, you'd still have to make sure the newly inserted
indirection gets initialized *prior* to the copy, so it's back to
square one...
Am 29.12.2013 17:22, schrieb Ritu:
Ok, I will give you some background of what I am trying to do.
I have a struct that wraps a class object and lazily
initializes it. Now
in case the struct instance is passed as an argument to a
function and
it has not been initialized yet, the default copy constructor
and the
postblit do not offer a possibility to initialize the class
object
before copying.
Any possibility of *preblit* kind functionality?
Regards
- Ritu
Nope. What you are asking for is basically a default constructor,
which D does not provide. Workarounds include the "static opCall"
pattern, as well as the "function builder" pattern (eg: "MyStruct
myStruct(Args args)")
