id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13142	circle_formation_functor call has no effect?	nkurtov@…	Lucanus Simonson	"What effect has the call of circle_formation_functor_.ppp() in boost::polygon::detail::circle_formation_predicate::operator() ?
The call seems to have no side effects, because circle_formation_functor_ is stateless and it does not affect voronoi_builder or voronoi_diagram.
Is it safe to simply delete the call?

http://www.boost.org/doc/libs/1_64_0/boost/polygon/detail/voronoi_predicates.hpp

class circle_formation_predicate {
  bool operator()(const site_type& site1, const site_type& site2,
                  const site_type& site3, circle_type& circle) {
    if (!site1.is_segment()) {
      if (!site2.is_segment()) {
        if (!site3.is_segment()) {
          // (point, point, point) sites.
          if (!circle_existence_predicate_.ppp(site1, site2, site3))
            return false;
          circle_formation_functor_.ppp(site1, site2, site3, circle);  // <- This call has no effect, does it?"	Bugs	new	To Be Determined	polygon	Boost 1.64.0	Optimization