On 10/04/2010 10:47 PM, Simen kjaeraas wrote:
Max Samukha <spam...@d-coding.com> wrote:
On 10/03/2010 10:47 PM, Walter Bright wrote:
In D, all struct (and class) instances are, by definition, movable using
memcpy().
Structs are ok. Classes are not. Do you really want to forbid this use
case:
class A
{
private A _parent;
private A[] _children;
this(A parent)
{
if (parent !is null) {
_parent = parent;
_parent._children ~= this;
}
}
}
auto parent = new A;
auto child = new A(parent);
?
I don't see how that is incompatible with what Walter said. Of course
one would need to update pointers to the moved classes.
He said "movable using memcpy()". He didn't say anything about adjusting
pointers. A moving GC should and will adjust pointers, but I don't see
how the memcpy() is relevant here.
