- Interval ledger_domain = Interval (std::min (staff_ext_y[UP], ref_stem_ext[UP]),
- std::max (staff_ext_y[DOWN], ref_stem_ext[DOWN]));
+ Interval ledger_domain = Interval (min (staff_ext_y[UP], ref_stem_ext[UP]),
+ max (staff_ext_y[DOWN], ref_stem_ext[DOWN]));