I have two problems using the Sparc compiler CC-3.0.1
on a SunOS 4.1.3 1 sun4m

First problem.
_____________

Compiling a C++ source containing the following selected code:

template <class T> class MWTree ;

template <class T>
ostream& operator<<( ostream& , const MWTree<T>& );

template <class T>
class MWNode : public Info<T> {
  MWNode* parent ;
  MWNode* child ;
  MWNode* sibling ;
public:
  MWNode(T* a , DeleteType d =noDestroy )
  //MWNode(T* a , DeleteType d )
   : parent(0) , child(0) , sibling(0) , Info<T>(a,d) {}
  virtual ~MWNode()
    { if( sibling ) delete sibling ;
      if( child ) delete child ;
    }

   friend class MWTree<T> ;
   friend ostream& operator<<( ostream& , const MWTree<T>& ) ;
   // the declaration above made the compiler issue:
   // function templates do not support default arguments

};  // This is the line the compiler indicates with the error

 I get this error from the compiler:

  function templates do not support default arguments

If I comment out the first constructor and I use the commented one
the problem disappears. This may not seem strange, but I used
default arguments - of course not concerning the dummy T type -
in other similar classes and I had no problems.
I found out that the problem is due to the friend declaration
of the overloaded << operator. Commenting it out and using
the constructor with default arguments works fine, but I had to
introduce new member functions in the class because the operator
can no longer access private data member.
I would like an explanation of this behaviour.


Second problem.
_____________
When I construct a library based on sources containing
templates I always have undefined symbols errors
when I link using the library. If I use directly the objs when
linking the errors disappear. The library is built with
    ar rc ...
adding first the objs resulting from compilation and then
the objs in the ./ptrepository directory ( after shortening
their names). I tried compiling with no flags, then with
the -pta flag, the with the -pts flag, but nothing changed.

Can anyone help me ? Thanks!

Stephane

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                   |
         * *       |   Commission of the European Communities
      *       *    |   Joint Research Center
     *         *   |
     *         *   |   Institut for Systems Engineering and Informatics
      *       *    |
         * *       |   Socio-Technical Systems Safety Sector
___________________|__________________________________________________________

Dr. Stephane AMARGER                     Phone : +39 332 785021
Joint Research Center
Commission of the European Communities   Fax   : +39 332 789472
TP 210
I - 21020  ISPRA  (VA)                   Email : stephane.amarger@cen.jrc.it
ITALY
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