~= call copy ctor?

[Matthias Walter]

On 07/19/2012 03:00 PM, Namespace wrote:
> Is there any way to avoid the implizit copy ctor by array concatenation?
> Or is the only way to use a pointer?

Yes, in some way you have to. If you want to not copy a lot of data (or
avoid additional on-copy effort) you either have to you pointers
explicitly (Test*[]) or implicitly. The latter works e.g. by making Test
a class which means that the variable actually does store a pointer to
the instance.

Note that for struct pointers you should not escape them, i.e. have a
variable local in a function, puts its address into some array and
returning that array. Since the local variable is gone, the pointer is
invalid as well. (Nothing happens if you do not access it).

Best regards,

Matthias