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-rw-r--r--gcc/cp/ChangeLog5
-rw-r--r--gcc/cp/pt.c2
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/template/operator10.C7
4 files changed, 19 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 2526a43..24a4763 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2007-07-08 Paolo Carlini <pcarlini@suse.de>
+
+ PR c++/30535
+ * pt.c (unify): Never pass error_mark_node to template_decl_level.
+
2007-07-07 Mark Mitchell <mark@codesourcery.com>
PR c++/32232
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 06e94e7..38a4c09 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -12298,6 +12298,8 @@ unify (tree tparms, tree targs, tree parm, tree arg, int strict)
case TEMPLATE_TEMPLATE_PARM:
case BOUND_TEMPLATE_TEMPLATE_PARM:
tparm = TREE_VALUE (TREE_VEC_ELT (tparms, 0));
+ if (tparm == error_mark_node)
+ return 1;
if (TEMPLATE_TYPE_LEVEL (parm)
!= template_decl_level (tparm))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4f24f50..66749ec 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2007-07-08 Paolo Carlini <pcarlini@suse.de>
+
+ PR c++/30535
+ * g++.dg/template/operator10.C: New.
+
2007-07-08 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/32217
diff --git a/gcc/testsuite/g++.dg/template/operator10.C b/gcc/testsuite/g++.dg/template/operator10.C
new file mode 100644
index 0000000..b17f49f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/operator10.C
@@ -0,0 +1,7 @@
+// PR c++/30535
+
+struct A {};
+
+template<A, typename T> int operator-(A, T); // { dg-error "not a valid type" }
+
+int i = A() - 0; // { dg-error "no match" }