gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_filebuf/overflow/char/2.cc

   1 // 2003-06-10  Paolo Carlini  <pcarlini@unitus.it>
   2
   3 // Copyright (C) 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 27.8.1.4 Overridden virtual functions
  22
  23 #include <fstream>
  24 #include <testsuite_hooks.h>
  25
  26 const char name_08[] = "filebuf_virtuals-8.txt"; // empty file, need to create
  27
  28 class OverBuf : public std::filebuf
  29 {
  30 public:
  31   int_type pub_overflow(int_type c = traits_type::eof())
  32   { return std::filebuf::overflow(c); }
  33 };
  34
  35 // According to 27.5.2.4.5 filebuf::overflow() returns not_eof(eof()).
  36 void test01()
  37 {
  38   using namespace std;
  39   bool test __attribute__((unused)) = true;
  40   typedef OverBuf::traits_type  traits_type;
  41
  42   OverBuf fb;
  43   fb.open(name_08, ios_base::out | ios_base::trunc);
  44
  45   VERIFY( fb.pub_overflow() == traits_type::not_eof(traits_type::eof()) );
  46   fb.close();
  47 }
  48
  49 int main()
  50 {
  51   test01();
  52   return 0;
  53 }