called copy constructor in foreach with ref on Range

[kinke]

On Monday, 22 June 2020 at 20:51:37 UTC, Jonathan M Davis wrote:
> [...]

That's why I put the struct in parantheses. Moving a class ref 
makes hardly any sense, but I've also never written a *class* to 
represent a range. Moving is the no-brainer solution for 
transferring ownership of struct ranges and invalidating the 
original instance.