g++ Template Compilation Problem...

[Don Mies <dmies at bluekite dot com>]

I am using g++:  gcc version 2.95.2 19991024 (release)

I'm having trouble compiling some files with template classes in them.

Here is a sample program:

-------------------------
     1
     2  template<class BASE_CLASS, class KEY, class VALUE>
     3  class CTypedPtrMap : public BASE_CLASS
     4  {
     5  public:
     6    int Lookup( BASE_CLASS::BASE_ARG_KEY key, VALUE& rValue) const
     7      { return BASE_CLASS::Lookup(key, ( BASE_CLASS::BASE_VALUE&)rValue); }
     8  };

---------------------

When I try to compile this, I get:

u.C:6: parse error before `,'
u.C: In method `int CTypedPtrMap<BASE_CLASS,KEY,VALUE>::Lookup(...) const':
u.C:7: parse error before `)'

Apparently the compiler is trying to syntax check this before it is actually instantiated.  At
instantiation time, the "BASE_CLASS" has in it:

protected:
     typedef int BASE_ARG_KEY;
     typedef void* BASE_VALUE;

The Sun Solaris 6.0 compiler, and NT's Visual Studio C++ 6.0 compile this without
complaint but g++ does not.

I have looked at all of the compiler switches and tried all of them that seem to have anything
to do with template instantiation without success.

Does anyone out there have a "fix" for this or a worksround?  ... Thanks...

Don Mies