android - OpenCV HoughCircles cvRound -

I have just followed an example on OpenCiv to detect the circle

  Vector & lt; Ve3f & gt; Circles; Apply Hough conversion to find /// Circles HoughCircles (src_gray, Circles, CV_HOUGH_GRADIENT, 1, src_gray.rows / 8, 200, 100, 0, 0); Attract the detected cycles for /// (size_t i = 0; i & lt; circles.size (); i ++) {point centre (circle [i] [0]), severade (circle [ I] [1])); Int radius = seared (circle [ii] [2]);   
 However, the Eclipse function is not accepting the call when it is functioning  
  cvRound (circles [i] [0])  invalid Logic 'candidates are: int cvRound (double)'   
 I have tried to add properties in which there are several directories for gnu c and c ++. I - & gt; C / C ++ Normal - & gt; For example path and symbols  
 ndkroot / sources / cxx-stl .... / include  
 country / jni / include for opencv etc  
 < / 
 
 But still do not accept the cvRound function, is there something wrong?  
 thx first   
 
 
 The cvRound function to convert only double values ​​to integer There is a circular function. Two ways:  
 1- You can do your own spherical work and use it.  
  int round {double x} {int y; If (x> = (int) x + 0,5) y = (int) x ++; Else y = (int) x; Return y; }   
 2- Not only add C ++ but also OpenCV's C API. (/ Include Opencv /)