libstdc++-v3/testsuite/22_locale/codecvt/in/wchar_t/2.cc

   1 // { dg-require-namedlocale "en_US.ISO8859-1" }
   2
   3 // 2003-02-06  Petur Runolfsson  <peturr02@ru.is>
   4
   5 // Copyright (C) 2003-2021 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 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
  23
  24 #include <locale>
  25 #include <cstring>
  26 #include <testsuite_hooks.h>
  27
  28 // Need to explicitly set the state(mbstate_t) to zero.
  29 // How to do this is not specified by the ISO C99 standard, so we
  30 // might need to add some operators to make the intuiative case
  31 // work:
  32 //   w_codecvt::state_type state00;
  33 //   state00 = 0;
  34 // or, can use this explicit "C" initialization:
  35 //   w_codecvt::state_type state01 = {0, 0};
  36 // .. except Ulrich says: Use memset. Always use memset. Feel the force...
  37 void
  38 zero_state(std::mbstate_t& state)
  39 { std::memset(&state, 0, sizeof(std::mbstate_t)); }
  40
  41 // Required instantiation
  42 // codecvt<wchar_t, char, mbstate_t>
  43 //
  44 // Baseline test for ISO8859-1. Converts entire charset.
  45 void test02()
  46 {
  47   using namespace std;
  48   typedef codecvt<wchar_t, char, mbstate_t>     w_codecvt;
  49   typedef codecvt_base::result                  result;
  50   typedef wchar_t                               int_type;
  51   typedef char                                  ext_type;
  52   typedef char_traits<wchar_t>                  int_traits;
  53
  54   const ext_type*       e_lit =
  55     "\x1\x2\x3\x4\x5\x6\x7\x8\x9\xa\xb\xc\xd\xe\xf\x10\x11\x12\x13"
  56     "\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20!\"#$%&"
  57     "'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`"
  58     "abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86"
  59     "\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95"
  60     "\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4"
  61     "\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3"
  62     "\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2"
  63     "\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1"
  64     "\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0"
  65     "\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef"
  66     "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe"
  67     "\xff";
  68
  69   const ext_type*       efrom_next;
  70   const int_type*       i_lit =
  71     L"\x1\x2\x3\x4\x5\x6\x7\x8\x9\xa\xb\xc\xd\xe\xf\x10\x11\x12\x13"
  72     L"\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20!\"#$%&"
  73     L"'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`"
  74     L"abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86"
  75     L"\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95"
  76     L"\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4"
  77     L"\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3"
  78     L"\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2"
  79     L"\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1"
  80     L"\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0"
  81     L"\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef"
  82     L"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe"
  83     L"\xff";
  84
  85   int                   size = strlen(e_lit);
  86   int_type*             i_arr = new int_type[size + 1];
  87   int_type*             i_ref = new int_type[size + 1];
  88   wmemset(i_arr, 0xdeadbeef, size + 1);
  89   wmemset(i_ref, 0xdeadbeef, size + 1);
  90   int_type*             ito_next;
  91
  92   locale loc = locale(ISO_8859(1,en_US));
  93   locale::global(loc);
  94   const w_codecvt*      cvt = &use_facet<w_codecvt>(loc);
  95
  96   // in
  97   w_codecvt::state_type state01;
  98   zero_state(state01);
  99   result r1 = cvt->in(state01, e_lit, e_lit + size, efrom_next,
 100                       i_arr, i_arr + size, ito_next);
 101   VERIFY( r1 == codecvt_base::ok );
 102   VERIFY( efrom_next == e_lit + size );
 103   VERIFY( ito_next == i_arr + size );
 104   VERIFY( !int_traits::compare(i_arr, i_lit, size) );
 105   VERIFY( !int_traits::compare(ito_next, i_ref, 1) );
 106
 107   delete [] i_arr;
 108   delete [] i_ref;
 109 }
 110
 111 int main ()
 112 {
 113   test02();
 114   return 0;
 115 }