--- /dev/null
+// Copyright (C) 2005, 2006, 2007, 2009 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 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/>.
+
+// 27.6.2.4 basic_ostream seek members [lib.ostream.seeks]
+// @require@ %-*.tst %-*.txt
+// @diff@ %-*.tst %-*.txt
+
+#include <ostream>
+#include <istream>
+#include <fstream>
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+const wchar_t* s = L" lootpack, peanut butter wolf, rob swift, madlib, quasimoto";
+const int times = 10;
+
+void write_rewind(std::wiostream& stream)
+{
+ bool test __attribute__((unused)) = true;
+
+ for (int j = 0; j < times; j++)
+ {
+ std::streampos begin = stream.tellp();
+
+ for (int i = 0; i < times; ++i)
+ stream << j << L'-' << i << s << L'\n';
+
+ stream.seekp(begin);
+ }
+ VERIFY( stream.good() );
+}
+
+void check_contents(std::wiostream& stream)
+{
+ bool test __attribute__((unused)) = true;
+
+ stream.clear();
+ stream.seekg(0, std::wios::beg);
+ int i = 0;
+ int loop = times * times + 2;
+ while (i < loop)
+ {
+ stream.ignore(80, L'\n');
+ if (stream.good())
+ ++i;
+ else
+ break;
+ }
+ VERIFY( i == times );
+}
+
+// fstream
+// libstdc++/2346
+void test02()
+{
+ std::wfstream ofstrm;
+ ofstrm.open("wistream_seeks-3.txt", std::wios::out);
+ if (!ofstrm)
+ std::abort();
+ write_rewind(ofstrm);
+ ofstrm.close();
+
+ std::wfstream ifstrm;
+ ifstrm.open("wistream_seeks-3.txt", std::wios::in);
+ check_contents(ifstrm);
+ ifstrm.close();
+}
+
+int main()
+{
+ test02();
+ return 0;
+}