On Monday, 17 September 2018 at 23:14:28 UTC, tide wrote:
From what I've read, the copy constructor can be used with
different types:
struct B
{
}
struct A
{
@implicit this(ref B b)
{
}
}
B foo();
A a;
a = foo(); // ok because of @implicit
a = A(foo()); // ok without @implicit
That's why it exists, otherwise I wouldn't want two types to be
implicitly convertible unless i explicitly tell it to be
implicit.
This DIP does not allow this, but apparently it is on the
horizon[1],
it will be easier to extend the feature to copy construct
from any type to any type
Is this a thing we are even considering?
Yes.
I don't agree with it.
[1]: https://github.com/dlang/DIPs/pull/129#discussion_r218006614
