Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_filebuf / underflow / char / 1.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/char/1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/char/1.cc
new file mode 100644 (file)
index 0000000..03fcd7d
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/char/1.cc
@@ -0,0 +1,83 @@
+// 2003-05-03  Petur Runolfsson  <peturr02@ru.is>
+
+// Copyright (C) 2003, 2009 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 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <fstream>
+#include <locale>
+#include <string>
+#include <testsuite_hooks.h>
+
+// Check that basic_filebuf::underflow() handles
+// codecvt::always_noconv() == false and codecvt::in() == noconv.
+class NoconvCvt : public std::codecvt<char, char, std::mbstate_t>
+{
+protected:
+  virtual bool
+  do_always_noconv() const throw()
+  { return false; }
+
+  virtual result
+  do_in(state_type&, const char* from, const char*, const char*& from_next,
+       char* to, char*, char*& to_next)
+  {
+    from_next = from;
+    to_next = to;
+    return noconv;
+  }
+};
+
+void test01()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+  const char* name = "filebuf_virtuals-1.txt";
+
+  string str;
+  filebuf fb;
+  filebuf::int_type c1;
+
+  if (fb.open(name, ios_base::in))
+    {  
+      while ((c1 = fb.sbumpc()) != EOF)
+       str.push_back(filebuf::traits_type::to_char_type(c1));
+      fb.close();
+    }
+
+  locale loc(locale::classic(), new NoconvCvt);
+  fb.pubimbue(loc);
+
+  if (fb.open(name, ios_base::in))
+    {
+      for (string::iterator i = str.begin(); i != str.end(); ++i)
+       {
+         c1 = fb.sbumpc();
+         VERIFY( c1 != filebuf::traits_type::eof() );
+         VERIFY( c1 == filebuf::traits_type::to_int_type(*i) );
+       }
+      VERIFY( fb.sgetc() == filebuf::traits_type::eof() );
+      fb.close();
+    }
+}
+
+int main()
+{
+  test01();
+  return 0;
+}