FWIW it never worked: https://gist.github.com/Whateverable/d9dbebb0e985a3964845df2c8652cbdf
On 2017-11-27 17:36:22, comdog wrote: > I previously asked about this unexpected Z behavior on Stackoverflow > ( https://stackoverflow.com/q/45001820/2766176 ). > > I expected this to change several hash keys at once. It changes no keys: > > my $hash = %( > wallet => 100, > gave => 0, > received => 0, > ); > > for ^1 { $hash<wallet gave> Z+= <-1 1> } > > dd $hash; > > I get: > > Hash $hash = ${:gave(0), :received(0), :wallet(100)} > > If I change that to add another statement it works: > > for ^1 { $hash<wallet gave> Z+= <-1 1>; True } > > It also works if I take out the binary assignment: > > for ^1 { $hash<wallet gave> = $hash<wallet gave> Z+ <-1 1> }