libstdc++-v3/testsuite/22_locale/codecvt/char32_t.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-cstdint "" }
   3
   4 // 2014-04-24 Rüdiger Sonderfeld
   5
   6 // Copyright (C) 2015-2017 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 // [locale.codecvt], C++11 22.4.1.4.  specialization.
  24
  25 #include <locale>
  26 #include <cstring>
  27 #include <testsuite_hooks.h>
  28
  29 void
  30 test01()
  31 {
  32   using namespace std;
  33   typedef codecvt<char32_t, char, mbstate_t> codecvt_c32;
  34   locale loc_c = locale::classic();
  35   VERIFY(has_facet<codecvt_c32>(loc_c));
  36   const codecvt_c32* const cvt = &use_facet<codecvt_c32>(loc_c);
  37
  38   VERIFY(!cvt->always_noconv());
  39   VERIFY(cvt->max_length() == 4);
  40   VERIFY(cvt->encoding() == 0);
  41
  42   const char u8dat[] = u8"H\U000000E4ll\U000000F6 \U0001F63F \U000056FD "
  43     u8"\U0000222B f(\U000003BA) exp(-2\U000003C0\U000003C9) d\U000003BA "
  44     u8"\U0001F6BF \U0001F6BF \U0001F648 \U00000413\U00000435\U0000043E"
  45     u8"\U00000433\U00000440\U00000430\U00000444\U00000438\U0000044F \U0000FB05";
  46   const char* const u8dat_end = std::end(u8dat);
  47
  48   const char32_t u32dat[] = U"H\U000000E4ll\U000000F6 \U0001F63F \U000056FD "
  49     U"\U0000222B f(\U000003BA) exp(-2\U000003C0\U000003C9) d\U000003BA "
  50     U"\U0001F6BF \U0001F6BF \U0001F648 \U00000413\U00000435\U0000043E"
  51     U"\U00000433\U00000440\U00000430\U00000444\U00000438\U0000044F \U0000FB05";
  52   const char32_t* const u32dat_end = std::end(u32dat);
  53
  54   {
  55     const size_t len = u32dat_end - u32dat + 1;
  56     char32_t* const buffer = new char32_t[len];
  57     char32_t* const buffer_end = buffer + len;
  58
  59     const char* from_next;
  60     char32_t* to_next;
  61
  62     codecvt_c32::state_type state01;
  63     state01 = {};
  64     codecvt_base::result res = cvt->in(state01, u8dat, u8dat_end, from_next,
  65                                        buffer, buffer_end, to_next);
  66
  67     VERIFY(res == codecvt_base::ok);
  68     VERIFY(from_next == u8dat_end);
  69     VERIFY(std::memcmp((void*)buffer, (void*)u32dat, sizeof(u32dat)) == 0);
  70
  71     delete[] buffer;
  72   }
  73
  74   {
  75     const size_t len = u8dat_end - u8dat + 1;
  76     char* const buffer = new char[len];
  77     char* const buffer_end = buffer + len;
  78
  79     const char32_t* from_next;
  80     char* to_next;
  81
  82     codecvt_c32::state_type state01;
  83     state01 = {};
  84     codecvt_base::result res = cvt->out(state01, u32dat, u32dat_end, from_next,
  85                                         buffer, buffer_end, to_next);
  86
  87     VERIFY(res == codecvt_base::ok);
  88     VERIFY(from_next == u32dat_end);
  89     VERIFY(std::memcmp((void*)buffer, (void*)u8dat, sizeof(u8dat)) == 0);
  90
  91     delete[] buffer;
  92   }
  93 }
  94
  95 int
  96 main()
  97 {
  98   test01();
  99 }