| // Copyright (C) 2017-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-do compile { target c++11 } } |
| |
| #include <string> |
| |
| |
| constexpr bool not_equal_to_eof(char16_t c) |
| { |
| using T = std::char_traits<char16_t>; |
| return T::eq_int_type(T::eof(), T::to_int_type(c)) == false; |
| } |
| |
| // Last two code points of the BMP are noncharacters: |
| static_assert(not_equal_to_eof(u'\uFFFE'), "U+FFFE compares unequal to eof"); |
| static_assert(not_equal_to_eof(u'\uFFFF'), "U+FFFF compares unequal to eof"); |
