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

   1 // 2000-08-23 Benjamin Kosnik <bkoz@cygnus.com>
   2
   3 // Copyright (C) 2000 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 <debug_assert.h>
  25
  26 using namespace std;
  27
  28 #ifdef _GLIBCPP_USE_WCHAR_T
  29
  30 void
  31 initialize_state(__enc_traits& state)
  32 { state._M_init(); }
  33
  34 // Partial specialization using __enc_traits.
  35 // codecvt<unicode_t, wchar_t, __enc_traits>
  36 void test01()
  37 {
  38   typedef codecvt_base::result                  result;
  39   typedef unsigned short                        unicode_t;
  40   typedef unicode_t                             int_type;
  41   typedef wchar_t                               ext_type;
  42   typedef __enc_traits                          enc_type;
  43   typedef codecvt<int_type, ext_type, enc_type> unicode_codecvt;
  44   typedef char_traits<int_type>                 int_traits;
  45   typedef char_traits<ext_type>                 ext_traits;
  46
  47   bool                  test = true;
  48   int                   size = 23;
  49   ext_type              e_lit_base[24] =
  50   { 1644167168, 1811939328, 1627389952, 1660944384, 1795162112,  536870912,
  51     1879048192, 1694498816, 1627389952, 1912602624, 1811939328, 536870912,
  52     1778384896, 1627389952, 1929379840, 1828716544, 1761607680, 1845493760,
  53     1694498816, 536870912,  1946157056, 1694498816, 1627389952, 167772160
  54   };
  55   const ext_type*       e_lit = e_lit_base;
  56
  57   int_type              i_lit_base[24] =
  58   {
  59     0x6200, 0x6c00, 0x6100, 0x6300, 0x6b00, 0x2000, 0x7000, 0x6500, 0x6100,
  60     0x7200, 0x6c00, 0x2000, 0x6a00, 0x6100, 0x7300, 0x6d00, 0x6900, 0x6e00,
  61     0x6500, 0x2000, 0x7400, 0x6500, 0x6100, 0xa000
  62   };
  63   const int_type*       i_lit = i_lit_base;
  64
  65   const ext_type*       efrom_next;
  66   const int_type*       ifrom_next;
  67   ext_type*             e_arr = new ext_type[size + 1];
  68   ext_type*             eto_next;
  69   int_type*             i_arr = new int_type[size + 1];
  70   int_type*             ito_next;
  71
  72   // construct a locale object with the specialized facet.
  73   locale                loc(locale::classic(), new unicode_codecvt);
  74   // sanity check the constructed locale has the specialized facet.
  75   VERIFY( has_facet<unicode_codecvt>(loc) );
  76   const unicode_codecvt&        cvt = use_facet<unicode_codecvt>(loc);
  77
  78   // in
  79   unicode_codecvt::state_type state01("UCS-2BE", "UCS4", 0xfeff, 0);
  80   initialize_state(state01);
  81   result r1 = cvt.in(state01, e_lit, e_lit + size, efrom_next,
  82                      i_arr, i_arr + size + 1, ito_next);
  83   VERIFY( r1 == codecvt_base::ok );
  84   VERIFY( !int_traits::compare(i_arr, i_lit, size) );
  85   VERIFY( efrom_next == e_lit + size );
  86   VERIFY( ito_next == i_arr + size );
  87
  88   // out
  89   unicode_codecvt::state_type state02("UCS-2BE", "UCS4", 0xfeff, 0);
  90   initialize_state(state02);
  91   result r2 = cvt.out(state02, i_lit, i_lit + size, ifrom_next,
  92                        e_arr, e_arr + size, eto_next);
  93   // XXX   VERIFY( r2 == codecvt_base::ok );
  94   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
  95   VERIFY( ifrom_next == i_lit + size );
  96   VERIFY( eto_next == e_arr + size );
  97
  98   // unshift
  99   ext_traits::copy(e_arr, e_lit, size);
 100   unicode_codecvt::state_type state03("UCS-2BE", "UCS4", 0xfeff, 0);
 101   initialize_state(state03);
 102   result r3 = cvt.unshift(state03, e_arr, e_arr + size, eto_next);
 103   VERIFY( r3 == codecvt_base::noconv );
 104   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 105   VERIFY( eto_next == e_arr );
 106
 107   int i = cvt.encoding();
 108   VERIFY( i == 0 );
 109
 110   VERIFY( !cvt.always_noconv() );
 111
 112   unicode_codecvt::state_type state04("UCS-2BE", "UCS4", 0xfeff, 0);
 113   initialize_state(state04);
 114   int j = cvt.length(state03, e_lit, e_lit + size, 5);
 115   VERIFY( j == 5 );
 116
 117   int k = cvt.max_length();
 118   VERIFY( k == 1 );
 119
 120   delete [] e_arr;
 121   delete [] i_arr;
 122 }
 123 #endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
 124
 125 int main ()
 126 {
 127 #if _GLIBCPP_USE_WCHAR_T
 128   test01();
 129 #endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
 130
 131   return 0;
 132 }