[Positioning] Add ResultList::empty()

owlps-positioning/src/resultlist.hh

@@ -25,6 +25,8 @@ public:
 
   /** @name Read accessors */
   //@{
+  /// Checks if there is at least one Result in the list
+  bool empty(void) const ;
   const Request* get_request(void) const ;
   const std::vector<Result>& get_results(void) const ;
   //@}
@@ -57,6 +59,12 @@ public:
 /* *** Read accessors *** */
 
 
+inline bool ResultList::empty() const
+{
+  return results.empty() ;
+}
+
+
 inline const Request* ResultList::get_request() const
 {
   return request ;