Comments (1)
Thanks for the bug report.
I can see the problem -- in reverse_adaptor
we wrap the underlying cursor type in a rev_cur<cursor_t<Base>>
object. But when constructing a rev_cur
in reverse_adaptor
's first()
and last()
implementations we are relying on CTAD, and when cursor_t<Base>
is itself a specialisation of rev_cur
then this is going to copy/move construct an object of the same type!
The solution is for reverse_adaptor
to correctly explicitly instantiate a rev_cur<cursor_t<Base>>(base_cur)
rather than me being lazy and just saying rev_cur(base_cur)
.
(It occurs to me that unwrapping rev_cur
s isn't necessarily a terrible idea, but I'd have to work out how this could be done without breaking other stuff.)
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