| // { dg-do run { target c++17 } } |
| |
| // Copyright (C) 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/>. |
| |
| #include <string> |
| #include <testsuite_hooks.h> |
| |
| void test01() |
| { |
| const char *a = "\x7f"; |
| const char *b = "\x80"; |
| int c = std::char_traits<char>::compare(a, b, 2); |
| constexpr int d = std::char_traits<char>::compare("\x7f", "\x80", 2); |
| |
| VERIFY( c && (c < 0) == (static_cast<unsigned char>(a[0]) |
| < static_cast<unsigned char>(b[0])) ); |
| VERIFY( d && (c < 0) == (d < 0) ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |
