Created on 2020-12-15.00:00:00 last changed yesterday
[ 2021-01-15; Telecon prioritization ]
Set priority to 3 following reflector and telecon discussions.
[customization.point.object] promises that customization point objects are semiregular and that all copies are equal, which permits copies to be freely made. In C++, making copies tends to drop cv-qualification, but there does not appear to be anything that guarantees that you can invoke these objects as non-const (or as rvalues, for that matter).It is possible that the use of invocable<const F&, Args...> here was meant to bring in implicit expression variations, but P2102R0 has since clarified that this formulation doesn't do that.
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