libstdc++-v3/testsuite/27_io/basic_ostream/sentry/pod/1.cc

   1 // 1999-10-14 bkoz
   2
   3 // Copyright (C) 1999-2016 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 // 27.6.1.1.2 class basic_istream::sentry
  22
  23 #include <ostream>
  24 #include <sstream>
  25 #include <typeinfo>
  26 #include <ext/pod_char_traits.h>
  27 #include <testsuite_hooks.h>
  28 #include <testsuite_character.h>
  29
  30 void test01()
  31 {
  32   using namespace std;
  33   using __gnu_test::pod_ushort;
  34   typedef basic_string<pod_ushort>      string_type;
  35   typedef basic_stringbuf<pod_ushort>   stringbuf_type;
  36   typedef basic_ostream<pod_ushort>     ostream_type;
  37
  38   bool test __attribute__((unused)) = true;
  39
  40
  41   const string_type str01;
  42   stringbuf_type* strbuf01 = 0;
  43   stringbuf_type strbuf02(str01);
  44   ostream_type ostr01(strbuf01);
  45   ostream_type ostr02(&strbuf02);
  46
  47   // test negatives
  48   try
  49     {
  50       ostream_type::sentry sentry01(ostr01);
  51     }
  52   catch (std::bad_cast& obj)
  53     {
  54       // Not ok, throws bad_cast because locale has no ctype facet,
  55       // but none is needed for ostream::sentry.
  56       VERIFY( false );
  57     }
  58   catch (...)
  59     {
  60       VERIFY( false );
  61     }
  62
  63   // imbued.
  64   const std::locale loc(std::locale::classic(), new std::ctype<pod_ushort>);
  65   ostr01.imbue(loc);
  66   try
  67     {
  68       ostream_type::sentry sentry01(ostr01);
  69       VERIFY( bool(sentry01) == false );
  70     }
  71   catch (...)
  72     {
  73       VERIFY( false );
  74     }
  75
  76   // test positive
  77   try
  78     {
  79       ostream_type::sentry sentry03(ostr02);
  80     }
  81   catch (std::bad_cast& obj)
  82     {
  83       // Not ok, throws bad_cast because locale has no ctype facet,
  84       // but none is needed for ostream::sentry.
  85       VERIFY( false );
  86     }
  87   catch (...)
  88     {
  89       VERIFY( false );
  90     }
  91
  92   // imbued.
  93   ostr02.clear();
  94   ostr02.imbue(loc);
  95   try
  96     {
  97       ostream_type::sentry sentry03(ostr02);
  98       VERIFY( bool(sentry03) == true );
  99     }
 100   catch (...)
 101     {
 102       VERIFY( false );
 103     }
 104 }
 105
 106 #if !__GXX_WEAK__
 107 // Explicitly instantiate for systems with no COMDAT or weak support.
 108 template
 109   const std::basic_string<__gnu_test::pod_ushort>::size_type
 110   std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_max_size;
 111
 112 template
 113   const __gnu_test::pod_ushort
 114   std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_terminal;
 115 #endif
 116
 117 int main()
 118 {
 119   test01();
 120   return 0;
 121 }