From c3f8fc41b7ed113e28aea0606b4461959cf1c1a6 Mon Sep 17 00:00:00 2001
From: Dmitry-Me <wipedout@yandex.ru>
Date: Thu, 12 Feb 2015 17:32:43 +0300
Subject: [PATCH] Parameters should have been passed by reference

---
 modules/calib3d/src/circlesgrid.cpp | 4 ++--
 modules/calib3d/src/circlesgrid.hpp | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/modules/calib3d/src/circlesgrid.cpp b/modules/calib3d/src/circlesgrid.cpp
index ea169bdd72..bda50c05fa 100644
--- a/modules/calib3d/src/circlesgrid.cpp
+++ b/modules/calib3d/src/circlesgrid.cpp
@@ -66,7 +66,7 @@ void drawPoints(const std::vector<Point2f> &points, Mat &outImage, int radius =
 }
 #endif
 
-void CirclesGridClusterFinder::hierarchicalClustering(const std::vector<Point2f> points, const Size &patternSz, std::vector<Point2f> &patternPoints)
+void CirclesGridClusterFinder::hierarchicalClustering(const std::vector<Point2f> &points, const Size &patternSz, std::vector<Point2f> &patternPoints)
 {
 #ifdef HAVE_TEGRA_OPTIMIZATION
     if(tegra::hierarchicalClustering(points, patternSz, patternPoints))
@@ -135,7 +135,7 @@ void CirclesGridClusterFinder::hierarchicalClustering(const std::vector<Point2f>
     }
 }
 
-void CirclesGridClusterFinder::findGrid(const std::vector<cv::Point2f> points, cv::Size _patternSize, std::vector<Point2f>& centers)
+void CirclesGridClusterFinder::findGrid(const std::vector<cv::Point2f> &points, cv::Size _patternSize, std::vector<Point2f>& centers)
 {
   patternSize = _patternSize;
   centers.clear();
diff --git a/modules/calib3d/src/circlesgrid.hpp b/modules/calib3d/src/circlesgrid.hpp
index fae6b3cac7..fd1389298c 100644
--- a/modules/calib3d/src/circlesgrid.hpp
+++ b/modules/calib3d/src/circlesgrid.hpp
@@ -62,10 +62,10 @@ public:
     squareSize = 1.0f;
     maxRectifiedDistance = (float)(squareSize / 2.0);
   }
-  void findGrid(const std::vector<cv::Point2f> points, cv::Size patternSize, std::vector<cv::Point2f>& centers);
+  void findGrid(const std::vector<cv::Point2f> &points, cv::Size patternSize, std::vector<cv::Point2f>& centers);
 
   //cluster 2d points by geometric coordinates
-  void hierarchicalClustering(const std::vector<cv::Point2f> points, const cv::Size &patternSize, std::vector<cv::Point2f> &patternPoints);
+  void hierarchicalClustering(const std::vector<cv::Point2f> &points, const cv::Size &patternSize, std::vector<cv::Point2f> &patternPoints);
 private:
   void findCorners(const std::vector<cv::Point2f> &hull2f, std::vector<cv::Point2f> &corners);
   void findOutsideCorners(const std::vector<cv::Point2f> &corners, std::vector<cv::Point2f> &outsideCorners);