libstdc++-v3/testsuite/27_io/basic_ostream/seekp/wchar_t/exceptions_badbit_throw.cc

   1 // Copyright (C) 2005-2020 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 <ostream>
  20 #include <streambuf>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_io.h>
  24
  25 void test01()
  26 {
  27   using namespace std;
  28
  29   __gnu_test::fail_wstreambuf bib;
  30   wostream stream(&bib);
  31   stream.exceptions(ios_base::badbit);
  32
  33   wostream::pos_type pos = wostream::pos_type();
  34
  35   try
  36     {
  37       stream.seekp(pos);
  38       VERIFY( false );
  39     }
  40   catch (const __gnu_test::positioning_error&)
  41     {
  42       // stream should set badbit and rethrow facet_error.
  43       VERIFY( stream.bad() );
  44       VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
  45       VERIFY( !stream.eof() );
  46     }
  47   catch (...)
  48     {
  49       VERIFY( false );
  50     }
  51 }
  52
  53 void test02()
  54 {
  55   using namespace std;
  56
  57   __gnu_test::fail_wstreambuf bib;
  58   wostream stream(&bib);
  59   stream.exceptions(ios_base::badbit);
  60
  61   wostream::off_type off(5);
  62
  63   try
  64     {
  65       stream.seekp(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 }