--- /dev/null
+// Copyright (C) 2006, 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/>.
+
+
+#include <valarray>
+#include <testsuite_hooks.h>
+
+// libstdc++/27867
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ std::valarray<int> v1(100, 1);
+ std::valarray<int> v2(100, 1);
+ std::valarray<bool> v3(true, 1);
+
+ std::valarray<bool> resl(1);
+ resl = ((v1 == v2) == v3);
+ VERIFY( resl[0] == true );
+
+ std::valarray<bool> resr(1);
+ resr = (v3 == (v1 == v2));
+ VERIFY( resr[0] == true );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}