libstdc++-v3/testsuite/ext/codecvt/wchar_t.cc

   1 // { dg-require-iconv "UCS-2BE" }
   2 // { dg-require-iconv "UCS-4BE" }
   3
   4 // 2000-08-23 Benjamin Kosnik <bkoz@cygnus.com>
   5
   6 // Copyright (C) 2000, 2001, 2002, 2003, 2007, 2009 Free Software Foundation
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
  24
  25 #include <locale>
  26 #include <testsuite_hooks.h>
  27 #include <ext/codecvt_specializations.h>
  28
  29 // Partial specialization using encoding_state.
  30 // codecvt<unicode_t, wchar_t, encoding_state>
  31 void test01()
  32 {
  33   using namespace std;
  34   typedef codecvt_base::result                  result;
  35   typedef unsigned short                        int_type;
  36   typedef wchar_t                               ext_type;
  37   typedef __gnu_cxx::encoding_state                     state_type;
  38   typedef codecvt<int_type, ext_type, state_type>       unicode_codecvt;
  39   typedef char_traits<int_type>                 int_traits;
  40   typedef char_traits<ext_type>                 ext_traits;
  41
  42   bool test __attribute__((unused)) = true;
  43   int                   size = 23;
  44   char  e_lit_base[96] __attribute__((aligned(__alignof__(ext_type)))) =
  45   {
  46     0x00, 0x00, 0x00, 0x62, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x61,
  47     0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x20,
  48     0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x61,
  49     0x00, 0x00, 0x00, 0x72, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x20,
  50     0x00, 0x00, 0x00, 0x6a, 0x00, 0x00, 0x00, 0x61, 0x00, 0x00, 0x00, 0x73,
  51     0x00, 0x00, 0x00, 0x6d, 0x00, 0x00, 0x00, 0x69, 0x00, 0x00, 0x00, 0x6e,
  52     0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x74,
  53     0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x61, 0x00, 0x00, 0x00, 0xa0
  54   };
  55   const ext_type*       e_lit = reinterpret_cast<ext_type*>(e_lit_base);
  56
  57   char  i_lit_base[48] __attribute__((aligned(__alignof__(int_type)))) =
  58   {
  59     0x00, 0x62, 0x00, 0x6c, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6b, 0x00, 0x20,
  60     0x00, 0x70, 0x00, 0x65, 0x00, 0x61, 0x00, 0x72, 0x00, 0x6c, 0x00, 0x20,
  61     0x00, 0x6a, 0x00, 0x61, 0x00, 0x73, 0x00, 0x6d, 0x00, 0x69, 0x00, 0x6e,
  62     0x00, 0x65, 0x00, 0x20, 0x00, 0x74, 0x00, 0x65, 0x00, 0x61, 0x00, 0xa0
  63   };
  64   const int_type*       i_lit = reinterpret_cast<int_type*>(i_lit_base);
  65
  66   const ext_type*       efrom_next;
  67   const int_type*       ifrom_next;
  68   ext_type*             e_arr = new ext_type[size + 1];
  69   ext_type*             eto_next;
  70   int_type*             i_arr = new int_type[size + 1];
  71   int_type*             ito_next;
  72
  73   // construct a locale object with the specialized facet.
  74   locale                loc(locale::classic(), new unicode_codecvt);
  75   // sanity check the constructed locale has the specialized facet.
  76   VERIFY( has_facet<unicode_codecvt>(loc) );
  77   const unicode_codecvt& cvt = use_facet<unicode_codecvt>(loc);
  78
  79   // in
  80   //  unicode_codecvt::state_type state01("UCS-2BE", "UCS-4BE", 0xfeff, 0);
  81   unicode_codecvt::state_type state01("UCS-2BE", "UCS-4BE", 0, 0);
  82   result r1 = cvt.in(state01, e_lit, e_lit + size, efrom_next,
  83                      i_arr, i_arr + size + 1, ito_next);
  84   VERIFY( r1 == codecvt_base::ok );
  85   VERIFY( !int_traits::compare(i_arr, i_lit, size) );
  86   VERIFY( efrom_next == e_lit + size );
  87   VERIFY( ito_next == i_arr + size );
  88
  89   // out
  90   unicode_codecvt::state_type state02("UCS-2BE", "UCS-4BE", 0, 0);
  91   result r2 = cvt.out(state02, i_lit, i_lit + size, ifrom_next,
  92                        e_arr, e_arr + size, eto_next);
  93   VERIFY( r2 == codecvt_base::ok ); // XXX?
  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", "UCS-4BE", 0, 0);
 101   result r3 = cvt.unshift(state03, e_arr, e_arr + size, eto_next);
 102   VERIFY( r3 == codecvt_base::noconv );
 103   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 104   VERIFY( eto_next == e_arr );
 105
 106   int i = cvt.encoding();
 107   VERIFY( i == 0 );
 108
 109   VERIFY( !cvt.always_noconv() );
 110
 111   unicode_codecvt::state_type state04("UCS-2BE", "UCS-4BE", 0, 0);
 112   int j = cvt.length(state03, e_lit, e_lit + size, 5);
 113   VERIFY( j == 5 );
 114
 115   int k = cvt.max_length();
 116   VERIFY( k == 1 );
 117
 118   delete [] e_arr;
 119   delete [] i_arr;
 120 }
 121
 122 int main ()
 123 {
 124   test01();
 125   return 0;
 126 }
 127