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

   1 // 2003-04-26 Petur Runolfsson  <peturr02@ru.is>
   2
   3 // Copyright (C) 2003-2021 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 27.3 Standard iostream objects
  21
  22 // ios_base::Init::~Init() calls cout.flush(), which may call
  23 // cout.setstate(badbit), which may throw an exception. Check that
  24 // the exception doesn't escape from the destructor.
  25
  26 #include <iostream>
  27 #include <streambuf>
  28 #include <testsuite_hooks.h>
  29
  30 class Badbuf : public std::streambuf
  31 {
  32 protected:
  33   virtual int sync()
  34   { return -1; }
  35 };
  36
  37 void test06()
  38 {
  39   try
  40     {
  41       // No-op in current code.
  42       std::ios_base::Init init;
  43       std::cout.rdbuf(new Badbuf);
  44       std::cout.exceptions(std::ios_base::badbit);
  45     }
  46   catch(...)
  47     {
  48       VERIFY( false );
  49     }
  50 }
  51
  52 int main()
  53 {
  54   test06();
  55   return 0;
  56 }