Patch for problems with partial specialization of templates with template parameters

[Kriang Lerdsuwanakij]

Hi

Here is the patch that fix the partial specialization bug reported
earlier.

Kriang

=======================================================

	* pt.c (unify): Handle TEMPLATE_DECL.


diff -rNpc gcc-old/cp/pt.c gcc/cp/pt.c
*** gcc-old/cp/pt.c	Wed Feb 18 16:24:52 1998
--- gcc/cp/pt.c	Wed Feb 18 16:24:03 1998
*************** unify (tparms, targs, ntparms, parm, arg
*** 5218,5223 ****
--- 5218,5227 ----
  	return 1;
        return 0;
  
+     case TEMPLATE_DECL:
+       /* Matched cases are handled by the ARG == PARM test above.  */
+       return 1;
+ 
      default:
        sorry ("use of `%s' in template type unification",
  	     tree_code_name [(int) TREE_CODE (parm)]);
diff -rNpc gcc-old/testsuite/g++.old-deja/g++.pt/ttp42.C
gcc/testsuite/g++.old-deja/g++.pt/ttp42.C
*** gcc-old/testsuite/g++.old-deja/g++.pt/ttp42.C	Wed Dec 31 16:00:00
1969
--- gcc/testsuite/g++.old-deja/g++.pt/ttp42.C	Wed Feb 18 16:26:33 1998
***************
*** 0 ****
--- 1,21 ----
+ template <class T, template <class T> class C>
+ struct X
+ {};
+ 
+ template <class T>
+ struct Y
+ {};
+ 
+ template <class T>
+ struct Z
+ {};
+ 
+ template <class T>
+ struct X<T,Y>
+ {};
+ 
+ int main()
+ {
+   X<int,Y> a;
+   X<int,Z> b;
+ }