libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc

   1 // Copyright (C) 2017-2021 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 const int bomlen = 3; // UTF-8 BOM is 24 bits
  24 const int maxlen = 4;
  25
  26 void
  27 test01()
  28 {
  29   std::codecvt_utf8_utf16<char16_t> c;
  30   VERIFY( c.always_noconv() == false );
  31   VERIFY( c.encoding() == 0 );
  32   VERIFY( c.max_length() == maxlen );
  33
  34   std::codecvt_utf8_utf16<char16_t, 0x10ffff, std::consume_header> c_bom;
  35   VERIFY( c_bom.always_noconv() == false );
  36   VERIFY( c_bom.encoding() == 0 );
  37   VERIFY( c_bom.max_length() == (maxlen + bomlen) );
  38 }
  39
  40 void
  41 test02()
  42 {
  43   std::codecvt_utf8_utf16<char32_t> c;
  44   VERIFY( c.always_noconv() == false );
  45   VERIFY( c.encoding() == 0 );
  46   VERIFY( c.max_length() == maxlen );
  47
  48   std::codecvt_utf8_utf16<char32_t, 0x10ffff, std::consume_header> c_bom;
  49   VERIFY( c_bom.always_noconv() == false );
  50   VERIFY( c_bom.encoding() == 0 );
  51   VERIFY( c_bom.max_length() == (maxlen + bomlen) );
  52 }
  53
  54 void
  55 test03()
  56 {
  57 #ifdef _GLIBCXX_USE_WCHAR_T
  58   std::codecvt_utf8_utf16<wchar_t> c;
  59   VERIFY( c.always_noconv() == false );
  60   VERIFY( c.encoding() == 0 );
  61   VERIFY( c.max_length() == maxlen );
  62
  63   std::codecvt_utf8_utf16<wchar_t, 0x10ffff, std::consume_header> c_bom;
  64   VERIFY( c_bom.always_noconv() == false );
  65   VERIFY( c_bom.encoding() == 0 );
  66   VERIFY( c_bom.max_length() == (maxlen + bomlen) );
  67 #endif
  68 }
  69
  70 int
  71 main()
  72 {
  73   test01();
  74   test02();
  75   test03();
  76 }