2.95.1 doesn't permit default template parameter?

[Jonathan Thornburg <jthorn at galileo dot thp dot univie dot ac dot at>]

This is a I'm-pretty-sure-it's-a-bug report for gcc version 2.95.1
on sparc-sun-sunos4.1.3:  default template parameters don't seem to
work.

For example, consider the input file

   #include <stdio.h>
   
   template <int X>
   inline int tfn(int i)
   {
   return i + X;
   }
   
   template <int X, int Y>
   inline int tfn(int i)
   {
   return X + Y*i;
   }
   
   #ifdef DEFAULT
   // default template parameter syntax as per C++PL3 section 13.4.1
   template <int X, int Y = 100>
   inline int dfn(int i)
   {
   return X + Y*i;
   }
   #endif
   
   int main()
   {
   printf("tfn<2>(10) = %d\n", tfn<2>(10));
   printf("tfn<2,3>(10) = %d\n", tfn<2,3>(10));
   #ifdef DEFAULT
   printf("dfn<2>(10) = %d\n", dfn<2>(10));
   printf("dfn<2,3>(10) = %d\n", dfn<2,3>(10));
   #endif
   
   return 0;
   }

The error message:

   % /usr/local/bin/g++ --version
   2.95.1
   % /usr/local/bin/g++ -Wall -o tov tov.cc
   % ./tov
   tfn<2>(10) = 12
   tfn<2,3>(10) = 32
   % /usr/local/bin/g++ -Wall -DDEFAULT -o tov tov.cc
   tov.cc: In function `int dfn(int)':
   tov.cc:19: default argument for template parameter in function template `dfn(int)'
   tov.cc: In function `int main()':
   tov.cc:29: no matching function for call to `dfn (int)'
   % 

Notice that without -DDEFAULT (so there are no default template parameters
specified), everything is fine, but with -DDEFAULT (parameter Y for the
template dfn() is defaulted), gcc gives an error.

So far as I can see, the -DDEFAULT code is correct C++, as per C++PL3
section 13.4.1.  (If I'm mistaken, and this is in fact not valid C++,
my apologies.)  I have grepped all occurences of 'template' in the gcc
2.95.1 info files, and not found any statements that this usage isn't
supported.

-- 
-- Jonathan Thornburg <jthorn@galileo.thp.univie.ac.at>
   http://www.thp.univie.ac.at/~jthorn/home.html
   Universitaet Wien (Vienna, Austria) / Institut fuer Theoretische Physik
   "There are no significant bugs in our released software that any
    significant number of users want fixed." - Bill Gates, 23 Oct 1995