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

   1 // 1999-10-14 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   4 // 2009, 2010
   5 // Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22
  23 // 27.6.1.1.2 class basic_istream::sentry
  24
  25 #include <ostream>
  26 #include <sstream>
  27 #include <typeinfo>
  28 #include <ext/pod_char_traits.h>
  29 #include <testsuite_hooks.h>
  30 #include <testsuite_character.h>
  31
  32 void test01()
  33 {
  34   using namespace std;
  35   using __gnu_test::pod_ushort;
  36   typedef basic_string<pod_ushort>      string_type;
  37   typedef basic_stringbuf<pod_ushort>   stringbuf_type;
  38   typedef basic_ostream<pod_ushort>     ostream_type;
  39
  40   bool test __attribute__((unused)) = true;
  41
  42
  43   const string_type str01;
  44   stringbuf_type* strbuf01 = 0;
  45   stringbuf_type strbuf02(str01);
  46   ostream_type ostr01(strbuf01);
  47   ostream_type ostr02(&strbuf02);
  48
  49   // test negatives
  50   try
  51     {
  52       ostream_type::sentry sentry01(ostr01);
  53     }
  54   catch (std::bad_cast& obj)
  55     {
  56       // Not ok, throws bad_cast because locale has no ctype facet,
  57       // but none is needed for ostream::sentry.
  58       VERIFY( false );
  59     }
  60   catch (...)
  61     {
  62       VERIFY( false );
  63     }
  64
  65   // imbued.
  66   const std::locale loc(std::locale::classic(), new std::ctype<pod_ushort>);
  67   ostr01.imbue(loc);
  68   try
  69     {
  70       ostream_type::sentry sentry01(ostr01);
  71       VERIFY( bool(sentry01) == false );
  72     }
  73   catch (...)
  74     {
  75       VERIFY( false );
  76     }
  77
  78   // test positive
  79   try
  80     {
  81       ostream_type::sentry sentry03(ostr02);
  82     }
  83   catch (std::bad_cast& obj)
  84     {
  85       // Not ok, throws bad_cast because locale has no ctype facet,
  86       // but none is needed for ostream::sentry.
  87       VERIFY( false );
  88     }
  89   catch (...)
  90     {
  91       VERIFY( false );
  92     }
  93
  94   // imbued.
  95   ostr02.clear();
  96   ostr02.imbue(loc);
  97   try
  98     {
  99       ostream_type::sentry sentry03(ostr02);
 100       VERIFY( bool(sentry03) == true );
 101     }
 102   catch (...)
 103     {
 104       VERIFY( false );
 105     }
 106 }
 107
 108 #if !__GXX_WEAK__
 109 // Explicitly instantiate for systems with no COMDAT or weak support.
 110 template
 111   const std::basic_string<__gnu_test::pod_ushort>::size_type
 112   std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_max_size;
 113
 114 template
 115   const __gnu_test::pod_ushort
 116   std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_terminal;
 117 #endif
 118
 119 int main()
 120 {
 121   test01();
 122   return 0;
 123 }