Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_istream / ignore / char / 2.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/ignore/char/2.cc b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/char/2.cc
new file mode 100644 (file)
index 0000000..05236fd
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/char/2.cc
@@ -0,0 +1,87 @@
+// Copyright (C) 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/>.
+
+// 27.6.1.3 unformatted input functions
+
+// { dg-require-fileio "" }
+
+#include <istream>
+#include <string>
+#include <fstream>
+#include <limits>
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+string prepare(string::size_type len, unsigned nchunks, char delim)
+{
+  string ret;
+  for (unsigned i = 0; i < nchunks; ++i)
+    {
+      for (string::size_type j = 0; j < len; ++j)
+       ret.push_back('a' + rand() % 26);
+      len *= 2;
+      ret.push_back(delim);
+    }
+  return ret;
+}
+
+void check(istream& stream, const string& str, unsigned nchunks, char delim)
+{
+  bool test __attribute__((unused)) = true;
+
+  string::size_type index = 0, index_new = 0;
+  unsigned n = 0;
+
+  while (stream.ignore(numeric_limits<streamsize>::max(), delim).good())
+    {
+      index_new = str.find(delim, index);
+      VERIFY( static_cast<string::size_type>(stream.gcount()) ==
+             index_new - index + 1 );
+      index = index_new + 1;
+      ++n;
+    }
+  VERIFY( stream.gcount() == 0 );
+  VERIFY( !stream.fail() );
+  VERIFY( n == nchunks );
+}
+
+void test01()
+{
+  const char filename[] = "istream_ignore.txt";
+
+  const char delim = '|';
+  const unsigned nchunks = 10;
+  const string data = prepare(555, nchunks, delim);
+
+  ofstream ofstrm;
+  ofstrm.open(filename);
+  ofstrm.write(data.data(), data.size());
+  ofstrm.close();
+
+  ifstream ifstrm;
+  ifstrm.open(filename);
+  check(ifstrm, data, nchunks, delim);
+  ifstrm.close();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}