libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/9404-1.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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 27.7.1.3 Overridden virtual functions
  22
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 bool over_called;
  27
  28 class Derived_stringbuf : public std::stringbuf
  29 {
  30 public:
  31   int_type overflow(int_type c)
  32   {
  33     over_called = true;
  34     return std::stringbuf::overflow(c);
  35   }
  36
  37   const char_type* pub_epptr() const
  38   {
  39     return epptr();
  40   }
  41
  42   const char_type* pub_pptr() const
  43   {
  44     return pptr();
  45   }
  46 };
  47
  48 // libstdc++/9404
  49 void test04()
  50 {
  51   bool test __attribute__((unused)) = true;
  52
  53   bool over_expected;
  54
  55   // sputc
  56   Derived_stringbuf dsbuf_01;
  57   over_called = false;
  58   dsbuf_01.sputc('i');
  59   VERIFY( over_called );
  60   over_expected = dsbuf_01.pub_epptr() == dsbuf_01.pub_pptr();
  61   over_called = false;
  62   dsbuf_01.sputc('v');
  63   VERIFY( (!over_expected && !over_called)
  64           || (over_expected && over_called) );
  65   dsbuf_01.sputc('i');
  66   VERIFY( dsbuf_01.str() == "ivi" ); // Sanity check.
  67 }
  68
  69 int main()
  70 {
  71   test04();
  72   return 0;
  73 }