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

   1 // Copyright (C) 2005 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.2.6 Unformatted output functions
  20 //
  21 // _GLIBCXX_RESOLVE_LIB_DEFECTS
  22 // DR 60. What is a formatted input function?
  23 // basic_ostream::write(const char_type*, streamsize) is an unformatted
  24 // output function.
  25 // DR 63. Exception-handling policy for unformatted output.
  26 // Unformatted output functions should catch exceptions thrown
  27 // from streambuf members.
  28
  29 #include <ostream>
  30 #include <streambuf>
  31 #include <testsuite_hooks.h>
  32
  33 class Buf : public std::wstreambuf
  34 {
  35 protected:
  36   virtual int_type
  37   overflow(int_type = traits_type::eof())
  38   { throw 0; }
  39 };
  40
  41 void test01()
  42 {
  43   bool test __attribute__((unused)) = true;
  44
  45   Buf buf;
  46   std::wostream os(&buf);
  47
  48   VERIFY( os.good() );
  49
  50   os.write(L"a", 1);
  51
  52   VERIFY( os.rdstate() == std::ios_base::badbit );
  53
  54   os.clear();
  55   os.exceptions(std::ios_base::badbit);
  56
  57   try
  58     {
  59       os.write(L"b", 1);
  60       VERIFY( false );
  61     }
  62   catch (int)
  63     {
  64       VERIFY( os.rdstate() == std::ios_base::badbit );
  65     }
  66 }
  67
  68 int main()
  69 {
  70   test01();
  71   return 0;
  72 }