Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_ostream / seekp / char / 2346-fstream.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc
new file mode 100644 (file)
index 0000000..36fa2c0
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc
@@ -0,0 +1,92 @@
+// 2000-06-29 bkoz
+
+// Copyright (C) 2000, 2001, 2002, 2003, 2004, 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
+
+// { dg-require-fileio "" }
+
+#include <ostream>
+#include <istream>
+#include <fstream>
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+const char* s = " lootpack, peanut butter wolf, rob swift, madlib, quasimoto";
+const int times = 10;
+
+void write_rewind(std::iostream& 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 << '-' << i << s << '\n';
+      
+      stream.seekp(begin);
+    }
+  VERIFY( stream.good() );
+}
+
+void check_contents(std::iostream& stream)
+{
+  bool test __attribute__((unused)) = true;
+
+  stream.clear();
+  stream.seekg(0, std::ios::beg);
+  int i = 0;
+  int loop = times * times + 2;
+  while (i < loop)
+    {
+      stream.ignore(80, '\n');
+      if (stream.good())
+       ++i;
+      else
+       break;
+    }
+  VERIFY( i == times );
+}
+
+// fstream
+// libstdc++/2346
+void test02()
+{       
+  std::fstream ofstrm;
+  ofstrm.open("istream_seeks-3.txt", std::ios::out);
+  if (!ofstrm)
+    std::abort();
+  write_rewind(ofstrm);
+  ofstrm.close();
+
+  std::fstream ifstrm;
+  ifstrm.open("istream_seeks-3.txt", std::ios::in);
+  check_contents(ifstrm);
+  ifstrm.close();
+}
+
+int main()
+{
+  test02();
+  return 0;
+}