libstdc++-v3/testsuite/27_io/basic_ostream/write/char/1.cc

   1 // 2003-09-22  Petur Runolfsson  <peturr02@ru.is>
   2
   3 // Copyright (C) 2003, 2005 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 // 27.6.2.6 Unformatted output functions
  22 //
  23 // _GLIBCXX_RESOLVE_LIB_DEFECTS
  24 // DR 60. What is a formatted input function?
  25 // basic_ostream::write(const char_type*, streamsize) is an unformatted
  26 // output function.
  27 // DR 63. Exception-handling policy for unformatted output.
  28 // Unformatted output functions should catch exceptions thrown
  29 // from streambuf members.
  30
  31 #include <ostream>
  32 #include <streambuf>
  33 #include <testsuite_hooks.h>
  34
  35 class Buf : public std::streambuf
  36 {
  37 protected:
  38   virtual int_type
  39   overflow(int_type = traits_type::eof())
  40   { throw 0; }
  41 };
  42
  43 void test01()
  44 {
  45   bool test = true;
  46
  47   Buf buf;
  48   std::ostream os(&buf);
  49
  50   VERIFY( os.good() );
  51
  52   os.write("a", 1);
  53
  54   VERIFY( os.rdstate() == std::ios_base::badbit );
  55
  56   os.clear();
  57   os.exceptions(std::ios_base::badbit);
  58
  59   try
  60     {
  61       os.write("b", 1);
  62       VERIFY( false );
  63     }
  64   catch (int)
  65     {
  66       VERIFY( os.rdstate() == std::ios_base::badbit );
  67     }
  68 }
  69
  70 int main()
  71 {
  72   test01();
  73   return 0;
  74 }