This is important as it helps to
measure run-time of functions
in the code excluding the time to
print debug messages on the console
We added following piece of code:
//#define CGAL_SDG_VERBOSE
//#ifndef CGAL_SDG_VERBOSE
//#define CGAL_SDG_DEBUG(a)
//#else
//#define CGAL_SDG_DEBUG(a) { a }
//#endif
If the macro CGAL_SDG_VERBOSE is enabled
then we will get all the debug messages
and if it is disabled then there will be no
debug messages