re PR c++/27821 (ICE with invalid ptr-to-member)

PR c++/27821
* decl.c (grokdeclarator): Return error_mark_node on
invalid uses of the scope resolution operator.

From-SVN: r114899

gcc/cp/ChangeLog

@@ -2,6 +2,10 @@
 
 	PR c++/27805
 	* typeck2.c (build_m_component_ref): Use error_operand_p.
+
+	PR c++/27821
+	* decl.c (grokdeclarator): Return error_mark_node on
+	invalid uses of the scope resolution operator.
 	
 2006-06-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 

gcc/cp/decl.c

@@ -8151,7 +8151,7 @@ grokdeclarator (const cp_declarator *declarator,
 	  {
 	    /* Something like struct S { int N::j; };  */
 	    error ("invalid use of %<::%>");
-	    decl = NULL_TREE;
+	    return error_mark_node;
 	  }
 	else if (TREE_CODE (type) == FUNCTION_TYPE)
 	  {

gcc/testsuite/ChangeLog

@@ -7,6 +7,9 @@
 
 	PR c++/27805
 	* g++.dg/parse/ptrmem6.C: New test.
+
+	PR c++/27821
+	* g++.dg/template/error22.C: New test.
 	
 2006-06-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 

gcc/testsuite/g++.dg/template/error22.C

+//PR c++/27821
+
+struct A
+{
+    template<void (A::*)()> struct B {};
+    void ::foo(); // { dg-error "invalid use" }
+    B<&A::foo> b; // { dg-errror "incomplete type|template argument" }
+};
+