old-autovect-branch/libstdc++-v3/testsuite/27_io/objects/char/6.cc

   1 // 2003-04-26 Petur Runolfsson  <peturr02@ru.is>
   2
   3 // Copyright (C) 2003 Free Software Foundation
   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 // 27.3 Standard iostream objects
  22
  23 // ios_base::Init::~Init() calls cout.flush(), which may call
  24 // cout.setstate(badbit), which may throw an exception. Check that
  25 // the exception doesn't escape from the destructor.
  26
  27 #include <iostream>
  28 #include <streambuf>
  29 #include <testsuite_hooks.h>
  30
  31 class Badbuf : public std::streambuf
  32 {
  33 protected:
  34   virtual int sync()
  35   { return -1; }
  36 };
  37
  38 void test06()
  39 {
  40   bool test __attribute__((unused)) = true;
  41
  42   try
  43     {
  44       // No-op in current code.
  45       std::ios_base::Init init;
  46       std::cout.rdbuf(new Badbuf);
  47       std::cout.exceptions(std::ios_base::badbit);
  48     }
  49   catch(...)
  50     {
  51       test = false;
  52     }
  53   VERIFY( test );
  54 }
  55
  56 int main()
  57 {
  58   test06();
  59   return 0;
  60 }