re PR c++/48745 ([C++0x] Segmentation fault with list-initialization, void…

re PR c++/48745 ([C++0x] Segmentation fault with list-initialization, void initializers and variadics)

	PR c++/48745
	* pt.c (value_dependent_expr_p): Handle CONSTRUCTOR.

From-SVN: r173678

gcc/cp/ChangeLog

+2011-05-11  Jason Merrill  <jason@redhat.com>
+
+	PR c++/48745
+	* pt.c (value_dependent_expr_p): Handle CONSTRUCTOR.
+
 2011-05-11  Nathan Froyd  <froydnj@codesourcery.com>
 
 	* cp-tree.h (TYPENAME_TYPE_FULLNAME, TYPEOF_TYPE_EXPR): Use

gcc/cp/pt.c

@@ -18273,6 +18273,16 @@ value_dependent_expression_p (tree expression)
 	 type-dependent.  */
       return type_dependent_expression_p (expression);
 
+    case CONSTRUCTOR:
+      {
+	unsigned ix;
+	tree val;
+	FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (expression), ix, val)
+	  if (value_dependent_expression_p (val))
+	    return true;
+	return false;
+      }
+
     default:
       /* A constant expression is value-dependent if any subexpression is
 	 value-dependent.  */

gcc/testsuite/ChangeLog

+2011-05-11  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/cpp0x/sfinae22.C: New.
+
 2011-05-11  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/48889

gcc/testsuite/g++.dg/cpp0x/sfinae22.C

+// PR c++/48745
+// { dg-options -std=c++0x }
+
+template<class T>
+struct add_rval_ref {
+  typedef T&& type;
+};
+
+template<>
+struct add_rval_ref<void> {
+  typedef void type;
+};
+
+template<class T>
+typename add_rval_ref<T>::type create();
+
+template<class T, class... Args>
+decltype(T{create<Args>()...}, char()) f(int);
+
+template<class, class...>
+char (&f(...))[2];
+
+static_assert(sizeof(f<int, void>(0)) != 1, "Error"); // #