8 double log_2(double x) ;
24 #include "lily-proto.hh"
25 Interval itemlist_width (const Array<Item*> &its);
28 int get_lower_bound (Array<Real> const& positions, Real x);
29 Slice get_bounds_slice (Array<Real> const& positions, Real x);
30 Interval get_bounds_iv (Array<Real> const& positions, Real x);
31 Interval quantise_iv (Array<Real> const& positions, Real period, Real x);