libstdc++-v3/testsuite/27_io/basic_istream/tellg/wchar_t/exceptions_badbit_throw.cc

   1 // Copyright (C) 2004-2020 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 3, 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 COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18
  19 #include <istream>
  20 #include <streambuf>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_io.h>
  24
  25 using namespace std;
  26
  27 void test01()
  28 {
  29   __gnu_test::fail_wstreambuf bib;
  30   wistream stream(&bib);
  31   stream.exceptions(ios_base::badbit);
  32
  33   try
  34     {
  35       stream.tellg();
  36       VERIFY( false );
  37     }
  38   catch (const __gnu_test::positioning_error&)
  39     {
  40       // stream should set badbit and rethrow facet_error.
  41       VERIFY( stream.bad() );
  42       VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
  43       VERIFY( !stream.eof() );
  44     }
  45   catch (...)
  46     {
  47       VERIFY(false);
  48     }
  49 }
  50
  51 // libstdc++/9546
  52 int main()
  53 {
  54   test01();
  55   return 0;
  56 }