gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_filebuf/sputn/char/9701-1.cc

   1 // 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002, 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_05[] = "filebuf_virtuals-5.txt"; // empty file, need to create
  27
  28 bool over_called;
  29
  30 class Derived_filebuf : public std::filebuf
  31 {
  32 public:
  33   int_type overflow(int_type c)
  34   {
  35     over_called = true;
  36     return std::filebuf::overflow(c);
  37   }
  38
  39   const char_type* pub_epptr() const
  40   {
  41     return epptr();
  42   }
  43
  44   const char_type* pub_pptr() const
  45   {
  46     return pptr();
  47   }
  48 };
  49
  50 // libstdc++/9701 (partial)
  51 void test11()
  52 {
  53   bool test __attribute__((unused)) = true;
  54
  55   bool over_expected;
  56
  57   // sputn
  58   Derived_filebuf dfbuf_02;
  59   dfbuf_02.open(name_05, std::ios_base::out);
  60   over_called = false;
  61   dfbuf_02.sputn("sonne's", 7);
  62   VERIFY( over_called );
  63   over_expected = dfbuf_02.pub_epptr() == dfbuf_02.pub_pptr();
  64   over_called = false;
  65   dfbuf_02.sputn(" peak", 5);
  66   VERIFY( (!over_expected && !over_called)
  67           || (over_expected && over_called) );
  68   dfbuf_02.close();
  69 }
  70
  71 int main()
  72 {
  73   test11();
  74   return 0;
  75 }