libstdc++-v3/testsuite/22_locale/codecvt_members_unicode_wchar_t.cc

   1 // 2000-08-23 Benjamin Kosnik <bkoz@cygnus.com>
   2
   3 // Copyright (C) 2000, 2001 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
  22
  23 #include <locale>
  24 #include <testsuite_hooks.h>
  25
  26 using namespace std;
  27
  28 #ifdef _GLIBCPP_USE___ENC_TRAITS
  29 #ifdef _GLIBCPP_USE_WCHAR_T
  30
  31 void
  32 initialize_state(__enc_traits& state)
  33 { state._M_init(); }
  34
  35 // Partial specialization using __enc_traits.
  36 // codecvt<unicode_t, wchar_t, __enc_traits>
  37 void test01()
  38 {
  39   typedef codecvt_base::result                  result;
  40   typedef unsigned short                        unicode_t;
  41   typedef unicode_t                             int_type;
  42   typedef wchar_t                               ext_type;
  43   typedef __enc_traits                          enc_type;
  44   typedef codecvt<int_type, ext_type, enc_type> unicode_codecvt;
  45   typedef char_traits<int_type>                 int_traits;
  46   typedef char_traits<ext_type>                 ext_traits;
  47
  48   bool                  test = true;
  49   int                   size = 23;
  50   char  e_lit_base[96] __attribute__((aligned(__alignof__(ext_type)))) =
  51   {
  52     0x00, 0x00, 0x00, 0x62, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x61,
  53     0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x20,
  54     0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x61,
  55     0x00, 0x00, 0x00, 0x72, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x20,
  56     0x00, 0x00, 0x00, 0x6a, 0x00, 0x00, 0x00, 0x61, 0x00, 0x00, 0x00, 0x73,
  57     0x00, 0x00, 0x00, 0x6d, 0x00, 0x00, 0x00, 0x69, 0x00, 0x00, 0x00, 0x6e,
  58     0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x74,
  59     0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x61, 0x00, 0x00, 0x00, 0xa0
  60   };
  61   const ext_type*       e_lit = reinterpret_cast<ext_type*>(e_lit_base);
  62
  63   char  i_lit_base[48] __attribute__((aligned(__alignof__(int_type)))) =
  64   {
  65     0x00, 0x62, 0x00, 0x6c, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6b, 0x00, 0x20,
  66     0x00, 0x70, 0x00, 0x65, 0x00, 0x61, 0x00, 0x72, 0x00, 0x6c, 0x00, 0x20,
  67     0x00, 0x6a, 0x00, 0x61, 0x00, 0x73, 0x00, 0x6d, 0x00, 0x69, 0x00, 0x6e,
  68     0x00, 0x65, 0x00, 0x20, 0x00, 0x74, 0x00, 0x65, 0x00, 0x61, 0x00, 0xa0
  69   };
  70   const int_type*       i_lit = reinterpret_cast<int_type*>(i_lit_base);
  71
  72   const ext_type*       efrom_next;
  73   const int_type*       ifrom_next;
  74   ext_type*             e_arr = new ext_type[size + 1];
  75   ext_type*             eto_next;
  76   int_type*             i_arr = new int_type[size + 1];
  77   int_type*             ito_next;
  78
  79   // construct a locale object with the specialized facet.
  80   locale                loc(locale::classic(), new unicode_codecvt);
  81   // sanity check the constructed locale has the specialized facet.
  82   VERIFY( has_facet<unicode_codecvt>(loc) );
  83   const unicode_codecvt&        cvt = use_facet<unicode_codecvt>(loc);
  84
  85   // in
  86   unicode_codecvt::state_type state01("UCS-2BE", "UCS-4BE", 0xfeff, 0);
  87   initialize_state(state01);
  88   result r1 = cvt.in(state01, e_lit, e_lit + size, efrom_next,
  89                      i_arr, i_arr + size + 1, ito_next);
  90   VERIFY( r1 == codecvt_base::ok );
  91   VERIFY( !int_traits::compare(i_arr, i_lit, size) );
  92   VERIFY( efrom_next == e_lit + size );
  93   VERIFY( ito_next == i_arr + size );
  94
  95   // out
  96   unicode_codecvt::state_type state02("UCS-2BE", "UCS-4BE", 0xfeff, 0);
  97   initialize_state(state02);
  98   result r2 = cvt.out(state02, i_lit, i_lit + size, ifrom_next,
  99                        e_arr, e_arr + size, eto_next);
 100   // XXX   VERIFY( r2 == codecvt_base::ok );
 101   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 102   VERIFY( ifrom_next == i_lit + size );
 103   VERIFY( eto_next == e_arr + size );
 104
 105   // unshift
 106   ext_traits::copy(e_arr, e_lit, size);
 107   unicode_codecvt::state_type state03("UCS-2BE", "UCS-4BE", 0xfeff, 0);
 108   initialize_state(state03);
 109   result r3 = cvt.unshift(state03, e_arr, e_arr + size, eto_next);
 110   VERIFY( r3 == codecvt_base::noconv );
 111   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 112   VERIFY( eto_next == e_arr );
 113
 114   int i = cvt.encoding();
 115   VERIFY( i == 0 );
 116
 117   VERIFY( !cvt.always_noconv() );
 118
 119   unicode_codecvt::state_type state04("UCS-2BE", "UCS-4BE", 0xfeff, 0);
 120   initialize_state(state04);
 121   int j = cvt.length(state03, e_lit, e_lit + size, 5);
 122   VERIFY( j == 5 );
 123
 124   int k = cvt.max_length();
 125   VERIFY( k == 1 );
 126
 127   delete [] e_arr;
 128   delete [] i_arr;
 129 }
 130 #endif // _GLIBCPP_USE_WCHAR_T
 131 #endif // _GLIBCPP_USE___ENC_TRAITS
 132
 133 int main ()
 134 {
 135 #ifdef _GLIBCPP_USE___ENC_TRAITS
 136 #ifdef _GLIBCPP_USE_WCHAR_T
 137   test01();
 138 #endif
 139 #endif
 140   return 0;
 141 }
 142