in reply to Re^3: lvalue XS subs
in thread lvalue XS subs

As threatened/promised, this is now implemented in PDL's master branch, with https://github.com/PDLPorters/pdl/commit/ecae7aa64a0fa727ab76dad5401b7ed73150a1aa, and that PP key with https://github.com/PDLPorters/pdl/commit/a2f518f982b8de34180489f37aa1826ca85ace89.