--- /dev/null
+// Copyright (C) 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-do compile }
+
+#include <valarray>
+
+// PR libstdc++/40691
+void test01()
+{
+ const std::valarray<int> vi(12);
+ std::valarray<bool> vb1(12);
+ std::valarray<bool> vb2(3);
+ std::slice s(0,3,4);
+
+ vb1 = !vi;
+ vb2 = !(std::valarray<int>)vi[s];
+ vb2 = !vi[s];
+}
+
+int main()
+{
+ test01();
+ return 0;
+}