Re: What's with GNAT?

[Sazonov Cyril <cyril@geol.spb.su>]

BwB wrote me:

> However, I believe the LRM para 6.4.1 (4) clearly states that conversion
> occurs in _both_ directions.

As I can see it is high time for me to re-read the LRM !

> For reasons I will not take time to mention, we consciously chose to avoid
> declaring intermediate variables whenever possible.

As for me, I don't like them too. But sometimes....

And what about functions ? Or just operations ? Something like this :

      function  Multiply ( Left, Right : in     Global.Cartesian_Vector )
                        return Global.Cartesian_Vector ;
..........................................................................
      function  Multiply ( Left, Right : in     Global.NED_Vector )
                        return Global.NED_Vector is
      begin  -- Multiply
         return Global.NED_Vector ( Multiply ( Global.Cartesian(Left),
                                               Global.Cartesian(Right) ) ;
      end Multiply;

or better ( on my taste, this is the best way at all ) :

      function "*" ( Left, Right : in Global.Cartesian_Vector )
                  return Global.Cartesian_Vector ;
..................................
      function "*" ( Left, Right : in     Global.NED_Vector;
                  return Global.NED_Vector is
      begin  -- Multiply
         return Global.NED_Vector ( Global.Cartesian(Left) *
                                    Global.Cartesian(Right) ) ;
      end Multiply;


Happy New Year !

Best wishes from Russia !                             Cyril Sazonov