libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit_throw.cc

   1 // Copyright (C) 2003, 2004 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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // As a special exception, you may use this file as part of a free software
  20 // library without restriction.  Specifically, if other files instantiate
  21 // templates or use macros or inline functions from this file, or you compile
  22 // this file and link it with other files to produce an executable, this
  23 // file does not by itself cause the resulting executable to be covered by
  24 // the GNU General Public License.  This exception does not however
  25 // invalidate any other reasons why the executable file might be covered by
  26 // the GNU General Public License.
  27
  28 #include <sstream>
  29 #include <testsuite_hooks.h>
  30 #include <testsuite_io.h>
  31
  32 // libstdc++/10093
  33 template<typename T>
  34 void test_failbit()
  35 {
  36   using namespace std;
  37   bool test __attribute__((unused)) = true;
  38
  39   locale loc(locale::classic(), new __gnu_test::fail_num_get_char);
  40   istringstream stream("jaylib - champion sound");
  41   stream.imbue(loc);
  42
  43   stream.exceptions(ios_base::failbit);
  44
  45   try
  46     {
  47       T i;
  48       stream >> i;
  49     }
  50   catch (const ios_base::failure&)
  51     { VERIFY( false ); }
  52   catch(...)
  53     { VERIFY( false ); }
  54
  55   // stream should set badbit.
  56   VERIFY( stream.bad() );
  57   VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
  58   VERIFY( !stream.eof() );
  59 }
  60
  61 int main()
  62 {
  63   test_failbit<bool>();
  64   test_failbit<short>();
  65   test_failbit<unsigned short>();
  66   test_failbit<int>();
  67   test_failbit<unsigned int>();
  68   test_failbit<long>();
  69   test_failbit<unsigned long>();
  70
  71   test_failbit<float>();
  72   test_failbit<double>();
  73
  74   test_failbit<void*>();
  75
  76   return 0;
  77 }