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) 2000-2024 Free Software Foundation, Inc.
   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   int                   size = 23;
  43   char  e_lit_base[96] __attribute__((aligned(__alignof__(ext_type)))) =
  44   {
  45     char(0x00), char(0x00), char(0x00), char(0x62), char(0x00), char(0x00),
  46     char(0x00), char(0x6c), char(0x00), char(0x00), char(0x00), char(0x61),
  47     char(0x00), char(0x00), char(0x00), char(0x63), char(0x00), char(0x00),
  48     char(0x00), char(0x6b), char(0x00), char(0x00), char(0x00), char(0x20),
  49     char(0x00), char(0x00), char(0x00), char(0x70), char(0x00), char(0x00),
  50     char(0x00), char(0x65), char(0x00), char(0x00), char(0x00), char(0x61),
  51     char(0x00), char(0x00), char(0x00), char(0x72), char(0x00), char(0x00),
  52     char(0x00), char(0x6c), char(0x00), char(0x00), char(0x00), char(0x20),
  53     char(0x00), char(0x00), char(0x00), char(0x6a), char(0x00), char(0x00),
  54     char(0x00), char(0x61), char(0x00), char(0x00), char(0x00), char(0x73),
  55     char(0x00), char(0x00), char(0x00), char(0x6d), char(0x00), char(0x00),
  56     char(0x00), char(0x69), char(0x00), char(0x00), char(0x00), char(0x6e),
  57     char(0x00), char(0x00), char(0x00), char(0x65), char(0x00), char(0x00),
  58     char(0x00), char(0x20), char(0x00), char(0x00), char(0x00), char(0x74),
  59     char(0x00), char(0x00), char(0x00), char(0x65), char(0x00), char(0x00),
  60     char(0x00), char(0x61), char(0x00), char(0x00), char(0x00), char(0xa0)
  61   };
  62   const ext_type*       e_lit = reinterpret_cast<ext_type*>(e_lit_base);
  63
  64   char  i_lit_base[48] __attribute__((aligned(__alignof__(int_type)))) =
  65   {
  66     char(0x00), char(0x62), char(0x00), char(0x6c), char(0x00), char(0x61),
  67     char(0x00), char(0x63), char(0x00), char(0x6b), char(0x00), char(0x20),
  68     char(0x00), char(0x70), char(0x00), char(0x65), char(0x00), char(0x61),
  69     char(0x00), char(0x72), char(0x00), char(0x6c), char(0x00), char(0x20),
  70     char(0x00), char(0x6a), char(0x00), char(0x61), char(0x00), char(0x73),
  71     char(0x00), char(0x6d), char(0x00), char(0x69), char(0x00), char(0x6e),
  72     char(0x00), char(0x65), char(0x00), char(0x20), char(0x00), char(0x74),
  73     char(0x00), char(0x65), char(0x00), char(0x61), char(0x00), char(0xa0)
  74   };
  75   const int_type*       i_lit = reinterpret_cast<int_type*>(i_lit_base);
  76
  77   const ext_type*       efrom_next;
  78   const int_type*       ifrom_next;
  79   ext_type*             e_arr = new ext_type[size + 1];
  80   ext_type*             eto_next;
  81   int_type*             i_arr = new int_type[size + 1];
  82   int_type*             ito_next;
  83
  84   // construct a locale object with the specialized facet.
  85   locale                loc(locale::classic(), new unicode_codecvt);
  86   // sanity check the constructed locale has the specialized facet.
  87   VERIFY( has_facet<unicode_codecvt>(loc) );
  88   const unicode_codecvt& cvt = use_facet<unicode_codecvt>(loc);
  89
  90   // in
  91   //  unicode_codecvt::state_type state01("UCS-2BE", "UCS-4BE", 0xfeff, 0);
  92   unicode_codecvt::state_type state01("UCS-2BE", "UCS-4BE", 0, 0);
  93   result r1 = cvt.in(state01, e_lit, e_lit + size, efrom_next,
  94                      i_arr, i_arr + size + 1, ito_next);
  95   VERIFY( r1 == codecvt_base::ok );
  96   VERIFY( !int_traits::compare(i_arr, i_lit, size) );
  97   VERIFY( efrom_next == e_lit + size );
  98   VERIFY( ito_next == i_arr + size );
  99
 100   // out
 101   unicode_codecvt::state_type state02("UCS-2BE", "UCS-4BE", 0, 0);
 102   result r2 = cvt.out(state02, i_lit, i_lit + size, ifrom_next,
 103                        e_arr, e_arr + size, eto_next);
 104   VERIFY( r2 == codecvt_base::ok ); // XXX?
 105   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 106   VERIFY( ifrom_next == i_lit + size );
 107   VERIFY( eto_next == e_arr + size );
 108
 109   // unshift
 110   ext_traits::copy(e_arr, e_lit, size);
 111   unicode_codecvt::state_type state03("UCS-2BE", "UCS-4BE", 0, 0);
 112   result r3 = cvt.unshift(state03, e_arr, e_arr + size, eto_next);
 113   VERIFY( r3 == codecvt_base::noconv );
 114   VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
 115   VERIFY( eto_next == e_arr );
 116
 117   int i = cvt.encoding();
 118   VERIFY( i == 0 );
 119
 120   VERIFY( !cvt.always_noconv() );
 121
 122   unicode_codecvt::state_type state04("UCS-2BE", "UCS-4BE", 0, 0);
 123   int j = cvt.length(state03, e_lit, e_lit + size, 5);
 124   VERIFY( j == 5 );
 125
 126   int k = cvt.max_length();
 127   VERIFY( k == 1 );
 128
 129   delete [] e_arr;
 130   delete [] i_arr;
 131 }
 132
 133 int main ()
 134 {
 135   test01();
 136   return 0;
 137 }
 138