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diff --git a/libstdc++-v3/testsuite/27_io/ios_init.cc b/libstdc++-v3/testsuite/27_io/ios_init.cc
new file mode 100644
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+++ b/libstdc++-v3/testsuite/27_io/ios_init.cc
@@ -0,0 +1,88 @@
+// 2001-06-05 Benjamin Kosnik  <bkoz@redhat.com>
+
+// Copyright (C) 2001 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 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.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+// 27.4.2.1.6 class ios_base::init
+
+#include <fstream>
+#include <iostream>
+#include <testsuite_hooks.h>
+
+class gnu_filebuf: public std::filebuf
+{
+  int i;
+public:
+  gnu_filebuf(int j = 1): i(j) { }
+  ~gnu_filebuf() { --i; }
+  int get_i() { return i;}
+};
+
+const int initial = 4;
+gnu_filebuf buf(initial);
+
+// libstdc++/3045, in a vague way.
+void test01()
+{
+  bool test = true;
+  int k1;
+
+  // 1 normal
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+  {
+    std::cout.rdbuf(&buf);
+  }
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+
+  // 2 syncd off
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+  {
+    std::cout.rdbuf(&buf);
+    std::ios_base::sync_with_stdio(false); // make sure doesn't clobber buf
+  }
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+
+  // 3 callling init
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+  {
+    std::cout.rdbuf(&buf);
+    std::ios_base::Init make_sure_initialized;
+  }
+  k1 = buf.get_i();
+  VERIFY( k1 == initial );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}