[Positioning] Add Stock::reference_point_exists()

owlps-positioning/src/stock.cc

@@ -342,6 +342,14 @@ bool Stock::is_ap_coordinate(const Point3D &coord)
 /* *** ReferencePoint operations *** */
 
 
+bool Stock::reference_point_exists(const ReferencePoint &point)
+{
+  unordered_set<ReferencePoint>::const_iterator i =
+    reference_points.find(point) ;
+  return i != reference_points.end() ;
+}
+
+
 /**
  * @param point Coordinates of the wanted ReferencePoint.
  * @return The ReferencePoint at the given coordinates, if found.

owlps-positioning/src/stock.hh

@@ -122,6 +122,8 @@ public:
   //@{
   /// Returns the number of reference points
   static unsigned int nb_reference_points(void) ;
+  /// Verify the existence of a reference point at the given coordinates
+  static bool reference_point_exists(const ReferencePoint &point) ;
   /// Reads the ReferencePoint at the given coordinates
   static const ReferencePoint&
   get_reference_point(const ReferencePoint &point) ;