#include "spanner.hh"
#include "paper-column.hh"

extern "C" {
  // thanks to GDBs wonderful casting abilities, we need these:
  Item *
  to_item (Grob *g)
  {
    return dynamic_cast<Item *> (g);
  }
  Spanner *
  to_spanner (Grob *g)
  {
    return dynamic_cast<Spanner *> (g);
  }

  Paper_column *
  to_pc (Grob *g)
  {
    return dynamic_cast<Paper_column *> (g);
  }
}