bool_op           483 lib/graphcut.c             bool_op(w, w->flags1, newpos, ~IN_TREE, 0);
bool_op           487 lib/graphcut.c                 bool_op(w, w->flags1, newpos, ~0, IN_TREE);
bool_op           507 lib/graphcut.c             bool_op(w, w->flags2, newpos, ~IN_TREE, 0);
bool_op           511 lib/graphcut.c                 bool_op(w, w->flags2, newpos, ~0, IN_TREE);