libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/66417.cc

   1 // Copyright (C) 2015-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <codecvt>
  21 #include <testsuite_hooks.h>
  22
  23 using namespace std;
  24
  25 void
  26 test01()
  27 {
  28   constexpr auto mode = generate_header;
  29   codecvt_utf16<char32_t, 0x10ffff, mode> cvt;
  30   mbstate_t state{};
  31   const char32_t* from = U"ABC";
  32   const char32_t* from_next;
  33   char to[100];
  34   char* to_next;
  35
  36   cvt.out(state, from, from + 3, from_next, to, to + 100, to_next);
  37
  38   VERIFY((unsigned char)to[0] == 0xfe);
  39   VERIFY((unsigned char)to[1] == 0xff);
  40   VERIFY(to[2] == 0x00);
  41   VERIFY(to[3] == 0x41);
  42   VERIFY(to[4] == 0x00);
  43   VERIFY(to[5] == 0x42);
  44   VERIFY(to[6] == 0x00);
  45   VERIFY(to[7] == 0x43);
  46 }
  47
  48 void
  49 test02()
  50 {
  51   constexpr auto mode = codecvt_mode(generate_header|little_endian);
  52   codecvt_utf16<char32_t, 0x10ffff, mode> cvt;
  53   mbstate_t state{};
  54   const char32_t* from = U"ABC";
  55   const char32_t* from_next;
  56   char to[100];
  57   char* to_next;
  58
  59   cvt.out(state, from, from + 3, from_next, to, to + 100, to_next);
  60
  61   VERIFY((unsigned char)to[0] == 0xff);
  62   VERIFY((unsigned char)to[1] == 0xfe);
  63   VERIFY(to[2] == 0x41);
  64   VERIFY(to[3] == 0x00);
  65   VERIFY(to[4] == 0x42);
  66   VERIFY(to[5] == 0x00);
  67   VERIFY(to[6] == 0x43);
  68   VERIFY(to[7] == 0x00);
  69 }
  70
  71 int
  72 main()
  73 {
  74   test01();
  75   test02();
  76 }