What should opAssign return, finally answered!
default_357-line at yahoo.de
Tue Oct 23 02:32:31 PDT 2007
Charles D Hixson wrote:
> What I would expect is:
> class A
> A opAssign(A a)
> // do stuff here
> return this;
> but the only examples that I can find (variant.d) return *this ... which
> leaves me quite confused. Is this something special that Variant is
> doing to allow it to handle multiple types (I didn't follow the
> internals), or do I have what is supposed to be returned wrong?
Variant is a struct.
The this of a struct is a pointer.
Ergo it has to dereference it, since opAssign returns the assignee for
purposes of assignment chaining (a=b=c).
Hope that clears things up.
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