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 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 #include <istream>
  22 #include <streambuf>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/9561
  26 struct foobar: std::exception { };
  27
  28 struct buf: std::streambuf
  29 {
  30     virtual int_type underflow () {
  31         throw foobar ();
  32         return -1;
  33     }
  34     virtual int_type uflow () {
  35         throw foobar ();
  36         return -1;
  37     }
  38 };
  39
  40 void test01()
  41 {
  42   using namespace std;
  43   bool test = true;
  44
  45   buf b;
  46   std::istream strm (&b);
  47   strm.exceptions (std::ios::badbit);
  48   int i = 0;
  49
  50   try {
  51     i = strm.get();
  52   }
  53   catch (foobar) {
  54     // strm should throw foobar and not do anything else
  55     VERIFY(strm.bad());
  56   }
  57   catch (...) {
  58     VERIFY(false);
  59   }
  60
  61   VERIFY(i == 0);
  62 }
  63
  64
  65 int main()
  66 {
  67   test01();
  68   return 0;
  69 }