On Tuesday, 31 August 2021 at 06:15:07 UTC, jfondren wrote: > On Tuesday, 31 August 2021 at 05:42:22 UTC, ag0aep6g wrote: >> On 31.08.21 02:50, Mike Parker wrote: >>> Member functions marked as immutable can be called on both >>> mutable and immutable instances. >> >> That's not true. > > Demonstrated: Well I'm really on my A game lately.