libstdc++-v3/testsuite/27_io/basic_istream/exceptions/char/9561.cc

   1 // 2003-03-08  Jerry Quinn  <jlquinn@optonline.net>
   2
   3 // Copyright (C) 2003-2024 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 #include <istream>
  21 #include <streambuf>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_io.h>
  24
  25 // libstdc++/9561
  26 void test01()
  27 {
  28   using namespace std;
  29
  30   __gnu_test::fail_streambuf b;
  31   std::istream strm (&b);
  32   strm.exceptions (std::ios::badbit);
  33   int i = 0;
  34
  35   try
  36     {
  37       i = strm.get();
  38       i = strm.get();
  39       i = strm.get();
  40     }
  41   catch (__gnu_test::underflow_error&)
  42     {
  43       // strm should throw facet_error and not do anything else
  44       VERIFY(strm.bad());
  45     }
  46   catch (...)
  47     {
  48       VERIFY(false);
  49     }
  50
  51   VERIFY(i == 's');
  52 }
  53
  54
  55 int main()
  56 {
  57   test01();
  58   return 0;
  59 }