compareTri3Ptr inline bool operator () ... const

Mesh/meshGFaceDelaunayInsertion.h

@@ -94,7 +94,7 @@ class MTri3
 class compareTri3Ptr
 {
 public:
-  inline bool operator () (const MTri3 *a, const MTri3 *b) 
+  inline bool operator () (const MTri3 *a, const MTri3 *b)  const
   {
     if (a->getRadius() > b->getRadius()) return true;
     if (a->getRadius() < b->getRadius()) return false;