libstdc++-v3/testsuite/22_locale/codecvt/unshift/wchar_t/3.cc

   1 // 2003-02-06  Petur Runolfsson  <peturr02@ru.is>
   2
   3 // Copyright (C) 2003 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 // Need to explicitly set the state(mbstate_t) to zero.
  27 // How to do this is not specified by the ISO C99 standard, so we
  28 // might need to add some operators to make the intuiative case
  29 // work:
  30 //   w_codecvt::state_type state00;
  31 //   state00 = 0;
  32 // or, can use this explicit "C" initialization:
  33 //   w_codecvt::state_type state01 = {0, 0};
  34 // .. except Ulrich says: Use memset. Always use memset. Feel the force...
  35 void
  36 zero_state(std::mbstate_t& state)
  37 { std::memset(&state, 0, sizeof(std::mbstate_t)); }
  38
  39 // Required instantiation
  40 // codecvt<wchar_t, char, mbstate_t>
  41 void test03()
  42 {
  43   using namespace std;
  44   typedef codecvt<wchar_t, char, mbstate_t>     w_codecvt;
  45   typedef codecvt_base::result                  result;
  46   typedef wchar_t                               int_type;
  47   typedef char                                  ext_type;
  48   typedef char_traits<char>                     ext_traits;
  49
  50   bool test __attribute__((unused)) = true;
  51   const int_type        i_lit[] = {
  52     0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc,
  53     0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
  54     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, L'!',
  55     L'"', L'#', L'$', L'%', L'&', L'\'', L'(', L')', L'*', L'+',
  56     L',', L'-', L'.', L'/', L'0', L'1', L'2', L'3', L'4', L'5',
  57     L'6', L'7', L'8', L'9', L':', L';', L'<', L'=', L'>', L'?',
  58     L'@', L'A', L'B', L'C', L'D', L'E', L'F', L'G', L'H', L'I',
  59     L'J', L'K', L'L', L'M', L'N', L'O', L'P', L'Q', L'R', L'S',
  60     L'T', L'U', L'V', L'W', L'X', L'Y', L'Z', L'[', L'\\', L']',
  61     L'^', L'_', L'`', L'a', L'b', L'c', L'd', L'e', L'f', L'g',
  62     L'h', L'i', L'j', L'k', L'l', L'm', L'n', L'o', L'p', L'q',
  63     L'r', L's', L't', L'u', L'v', L'w', L'x', L'y', L'z', L'{',
  64     L'|', L'}', L'~', 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85,
  65     0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
  66     0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
  67     0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3,
  68     0x20ac, 0xa5, 0x160, 0xa7, 0x161, 0xa9, 0xaa, 0xab, 0xac, 0xad,
  69     0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0x17d, 0xb5, 0xb6, 0xb7,
  70     0x17e, 0xb9, 0xba, 0xbb, 0x152, 0x153, 0x178, 0xbf, 0xc0, 0xc1,
  71     0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
  72     0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5,
  73     0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
  74     0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
  75     0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3,
  76     0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd,
  77     0xfe, 0xff, 0x0
  78   };
  79
  80   const int_type*       ifrom_next;
  81   int                   size = wcslen(i_lit);
  82   ext_type*             e_arr = new ext_type[size + 1];
  83   ext_type*             e_ref = new ext_type[size + 1];
  84   memset(e_arr, 0xf0, size + 1);
  85   memset(e_ref, 0xf0, size + 1);
  86   ext_type*             eto_next;
  87
  88   locale loc = __gnu_test::try_named_locale("en_US.ISO-8859-15");
  89   locale::global(loc);
  90   const w_codecvt*      cvt = &use_facet<w_codecvt>(loc);
  91
  92   // unshift
  93   w_codecvt::state_type state01;
  94   zero_state(state01);
  95   result r1 = cvt->unshift(state01, e_arr, e_arr + size, eto_next);
  96   VERIFY( r1 == codecvt_base::noconv );
  97   VERIFY( !ext_traits::compare(e_arr, e_ref, size + 1) );
  98   VERIFY( eto_next == e_arr );
  99
 100   for (int i = 0; i < size; ++i)
 101     {
 102       w_codecvt::state_type state02;
 103       zero_state(state02);
 104       cvt->out(state02, i_lit + i, i_lit + i + 1, ifrom_next,
 105                e_arr, e_arr + size, eto_next);
 106       memset(e_arr, 0xf0, size + 1);
 107       result r2 = cvt->unshift(state02, e_arr, e_arr + size, eto_next);
 108       VERIFY( r2 == codecvt_base::noconv );
 109       VERIFY( !ext_traits::compare(e_arr, e_ref, size + 1) );
 110       VERIFY( eto_next == e_arr );
 111     }
 112
 113   delete [] e_arr;
 114   delete [] e_ref;
 115 }
 116
 117 int main ()
 118 {
 119   test03();
 120   return 0;
 121 }