Passing by reference and not by value

(asked by Gareth)

src/reference/PointWiseMapping.cpp

@@ -90,7 +90,7 @@ unsigned PointWiseMapping::getPropertyIndex( const std::string& name ) const {
   return 0;
 }
 
-void PointWiseMapping::print( const std::string& method, double time, OFile& afile, const std::string& fmt ){
+void PointWiseMapping::print( const std::string& method, const double & time, OFile& afile, const std::string& fmt ){
   std::string descr2, descr="DESCRIPTION: results from %s analysis performed at time " + fmt +"\n";
   afile.printf(descr.c_str(), method.c_str(), time );
   if(fmt.find("-")!=std::string::npos){

src/reference/PointWiseMapping.h

@@ -75,7 +75,7 @@ public:
 /// Get a pointer to the matrix of pairwise distances
   Matrix<double>& modifyDmat();
 /// Print out the low dimensional mapping
-  void print( const std::string& method, double time, OFile& afile, const std::string& fmt );
+  void print( const std::string& method, const double & time, OFile& afile, const std::string& fmt );
 /// Get the low dimensional embedding coordinate
   double getProjectionCoordinate( const unsigned& iframe, const unsigned& jcoord ) const ;
 /// Set the value of the projection coordinate