+2003-11-14 Giovanni Bajo <giovannibajo@libero.it>
+
+ PR c++/2094
+ * pt.c (unify): Add support for PTRMEM_CST and
+ FIELD_DECL unification.
+
2003-11-13 Richard Earnshaw <rearnsha@arm.com>
* decl.c (grokfndecl): Change OK to type tree.
TREE_VEC_ELT (targs, idx) = arg;
return 0;
+ case PTRMEM_CST:
+ {
+ /* A pointer-to-member constant can be unified only with
+ another constant. */
+ if (TREE_CODE (arg) != PTRMEM_CST)
+ return 1;
+
+ /* Just unify the class member. It would be useless (and possibly
+ wrong, depending on the strict flags) to unify also
+ PTRMEM_CST_CLASS, because we want to be sure that both parm and
+ arg refer to the same variable, even if through different
+ classes. For instance:
+
+ struct A { int x; };
+ struct B : A { };
+
+ Unification of &A::x and &B::x must succeed. */
+ return unify (tparms, targs, PTRMEM_CST_MEMBER (parm),
+ PTRMEM_CST_MEMBER (arg), strict);
+ }
+
case POINTER_TYPE:
{
if (TREE_CODE (arg) != POINTER_TYPE)
return 1;
return 0;
+ case FIELD_DECL:
case TEMPLATE_DECL:
/* Matched cases are handled by the ARG == PARM test above. */
return 1;