Re: [lambda2] Andrzej's review

From: Peter Dimov (pdimov_at_[hidden])
Date: 2021-03-31 13:06:32

Alexander Grund wrote:
> > So yes, I think the only realistic way forward given the lookup issue
> > is for
> > Lambda2 to define its own placeholders in the same namespace as the
> > operators.
> Then you likely need to wrap the bind-expressions too, don't you?
> E.g. when `_1 + 1` works by using lamda2::_1, then you'll have the same issue
> for `(_1 + 1) + 1`

It should work. The result of std::bind will encode in its type somewhere the
type of _1, which will make boost::lambda2 an associated namespace.

std::bind(f, 1) + 2 will not be associated, so it will have the problem in Barry's
scenario, but there's nothing we can do about it.