diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 6eb5d1c4bf7..386b44e9b53 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,13 @@
+2003-02-03  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR libstdc++/9234
+	* include/bits/valarray_before.h (_UnBase::operator[]): Apply unary
+	operator.
+
+	* include/bits/valarray_before.h (__not_equal_to): Use != instead of ==.
+
+	* testsuite/26_numerics/valarray_operators.cc: New test.
+
 2003-02-01  Phil Edwards  <pme@gcc.gnu.org>
 
 	* docs/html/faq/index.html:  Correct link to libg++ information.
diff --git a/libstdc++-v3/include/bits/valarray_before.h b/libstdc++-v3/include/bits/valarray_before.h
index 13b53494987..7a0b677d023 100644
--- a/libstdc++-v3/include/bits/valarray_before.h
+++ b/libstdc++-v3/include/bits/valarray_before.h
@@ -270,7 +270,7 @@ namespace std
   {
     template<typename _Tp>
       bool operator()(const _Tp& __x, const _Tp& __y) const
-      { return __x == __y; }
+      { return __x != __y; }
   };
 
   struct __less
@@ -459,7 +459,7 @@ namespace std
       _UnBase(const _Arg& __e) : _M_expr(__e) {}
 
       value_type operator[](size_t __i) const
-      { return _M_expr[__i]; }
+      { return _Oper()(_M_expr[__i]); }
 
       size_t size() const { return _M_expr.size(); }
 
diff --git a/libstdc++-v3/testsuite/26_numerics/valarray_operators.cc b/libstdc++-v3/testsuite/26_numerics/valarray_operators.cc
new file mode 100644
index 00000000000..5753e471672
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/valarray_operators.cc
@@ -0,0 +1,67 @@
+// { dg-do run }
+// 2003-02-03  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+// Copyright (C) 2003 Free Software Foundation
+//
+// 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 2, 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+#include <valarray>
+#include <testsuite_hooks.h>
+
+void test01() // check unary operators
+{
+  std::valarray<int> u(1);
+  u[0]=1;
+
+  VERIFY( (+u)[0] == +1 );
+  VERIFY( (-u)[0] == -1 );
+  VERIFY( (!u)[0] == !1 );
+  VERIFY( (~u)[0] == ~1 );
+}
+
+void test02() // check binary operators
+{
+  std::valarray<int> u(1), v(1);
+  u[0]=1;
+  v[0]=3;
+
+  VERIFY( (u+ v)[0] == (1+ 3) );
+  VERIFY( (u- v)[0] == (1- 3) );
+  VERIFY( (u* v)[0] == (1* 3) );
+  VERIFY( (u/ v)[0] == (1/ 3) );
+  VERIFY( (u% v)[0] == (1% 3) );
+  VERIFY( (u^ v)[0] == (1^ 3) );
+  VERIFY( (u& v)[0] == (1& 3) );
+  VERIFY( (u| v)[0] == (1| 3) );
+  VERIFY( (u<<v)[0] == (1<<3) );
+  VERIFY( (u>>v)[0] == (1>>3) );
+  VERIFY( (u&&v)[0] == (1&&3) );
+  VERIFY( (u||v)[0] == (1||3) );
+  VERIFY( (u==v)[0] == (1==3) );
+  VERIFY( (u!=v)[0] == (1!=3) );
+  VERIFY( (u< v)[0] == (1< 3) );
+  VERIFY( (u> v)[0] == (1> 3) );
+  VERIFY( (u<=v)[0] == (1<=3) );
+  VERIFY( (u>=v)[0] == (1>=3) );
+}
+
+int main()
+{
+  test01();
+  test02();
+  return 0;
+}