static void get_bounds (Grob *, Grob **, Grob **);
static void add_column (Grob *me, Item *);
static void add_beam (Grob *me, Grob *);
- static Grob *parallel_beam (Grob *me, Link_array__Grob_ const &cols, bool *equally_long);
+ static Grob *parallel_beam (Grob *me, vector<Grob*> const &cols, bool *equally_long);
static void calc_position_and_height (Grob *, Real *, Real *dy);
static Stencil make_bracket (Grob *me, Axis protusion_axis,
Offset dz, Drul_array<Real> height,