rvalue based copy
Adam D. Ruppe via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Mon Mar 30 10:14:26 PDT 2015
On Monday, 30 March 2015 at 17:09:14 UTC, matovitch wrote:
>(I am gessing ref argument explitly means no rvalue)
That's right. I'd first say don't use ref, just use "const S" and
it will work and probably do what you need efficiently.
If you do want it to be ref though, rvalues aren't allowed unless
you make it "auto ref" which needs to be a template:
// this will work, second set of () makes it a template
// then auto ref makes it use ref for lvalues and non-ref for
rvalues
// automatially
void opAssign()(const auto ref S s)
{
//...
}
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