libstdc++-v3/testsuite/27_io/basic_istream/seekg/char/exceptions_badbit_throw.cc

   1 // Copyright (C) 2003-2013 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   bool test __attribute__((unused)) = true;
  30   __gnu_test::fail_streambuf bib;
  31   istream stream(&bib);
  32   stream.exceptions(ios_base::badbit);
  33
  34   istream::pos_type pos;
  35
  36   try
  37     {
  38       stream.seekg(pos);
  39       VERIFY( false );
  40     }
  41   catch (const __gnu_test::positioning_error&)
  42     {
  43       // stream should set badbit and rethrow facet_error.
  44       VERIFY( stream.bad() );
  45       VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
  46       VERIFY( !stream.eof() );
  47     }
  48   catch (...)
  49     {
  50       VERIFY(false);
  51     }
  52 }
  53
  54 void test02()
  55 {
  56   bool test __attribute__((unused)) = true;
  57   __gnu_test::fail_streambuf bib;
  58   istream stream(&bib);
  59   stream.exceptions(ios_base::badbit);
  60
  61   istream::off_type off(5);
  62
  63   try
  64     {
  65       stream.seekg(off, ios_base::cur);
  66       VERIFY( false );
  67     }
  68   catch (const __gnu_test::positioning_error&)
  69     {
  70       // stream should set badbit and rethrow facet_error.
  71       VERIFY( stream.bad() );
  72       VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
  73       VERIFY( !stream.eof() );
  74     }
  75   catch (...)
  76     {
  77       VERIFY(false);
  78     }
  79 }
  80
  81 // libstdc++/9546
  82 int main()
  83 {
  84   test01();
  85   test02();
  86   return 0;
  87 }