libstdc++-v3/testsuite/27_io/filesystem/path/construct/90281.cc

   1 // Copyright (C) 2019-2024 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++17 } }
  19 // { dg-additional-options "-Wno-deprecated-declarations" { target c++20 } }
  20
  21 #include <filesystem>
  22 #include <testsuite_hooks.h>
  23
  24 namespace fs = std::filesystem;
  25
  26 template<typename C = fs::path::value_type>
  27 const C* code_units()
  28 {
  29   if constexpr (std::is_same_v<C, char>)
  30     return "\xf0\x9d\x84\x9e";
  31   else
  32     return L"\xD834\xDD1E";
  33 }
  34
  35 // PR libstdc++/90281
  36 void
  37 test01()
  38 {
  39   const fs::path::string_type expected = code_units();
  40
  41   fs::path p8 = fs::u8path(u8"\U0001D11E");
  42   VERIFY( p8.native() == expected );
  43   fs::path p16(u"\U0001D11E");
  44   VERIFY( p16.native() == expected );
  45   fs::path p32(U"\U0001D11E");
  46   VERIFY( p32.native() == expected );
  47 }
  48
  49 int
  50 main()
  51 {
  52   test01();
  53 }