Struct that destroys its original handle on copy-by-value
Vlad Levenfeld via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Wed Jul 29 12:27:24 PDT 2015
On Wednesday, 29 July 2015 at 19:10:36 UTC, Adam D. Ruppe wrote:
> On Sunday, 26 July 2015 at 12:16:30 UTC, Joseph Rushton
> Wakeling wrote:
>> My aim by contrast is to _allow_ that kind of use, but render
>> the original handle empty when it's done.
> I don't think D offers any way to do that. With the disabled
> postblit, you can force people into a method you write that
> returns a new copy and clears the original, but that won't just
> work with assignment.
> The ref assign might not be forbidden by the written doc but
> I'm guessing that is just an oversight - struct assignment in D
> never clears the original, it is always a simple copy (perhaps
> plus other code)....
Slightly OT, but this is something that would be possible with a
copy constructor, I think?
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