| // Copyright (C) 2020-2021 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 run } |
| |
| #include <algorithm> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| volatile unsigned char i[] = { 0, 1, 2, 3 }; |
| volatile unsigned char j[] = { 1, 2, 3 }; |
| unsigned char k[] = { 2, 3, 4 }; |
| |
| // v = volatile, c = const, cv = const volatile, u = unqualified |
| |
| VERIFY( ! std::lexicographical_compare(i+1, i+4, j, j+2) ); // v v |
| VERIFY( std::lexicographical_compare(i+2, i+4, k, k+3) ); // v u |
| VERIFY( ! std::lexicographical_compare(k, k+3, i+1, i+4) ); // u v |
| |
| const volatile unsigned char* cj = j; |
| VERIFY( std::lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv |
| VERIFY( ! std::lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v |
| VERIFY( std::lexicographical_compare(i, i+2, cj, cj+2) ); // v cv |
| VERIFY( std::lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u |
| VERIFY( ! std::lexicographical_compare(k, k+2, cj, cj+3) ); // u cv |
| const unsigned char* ck = k; |
| VERIFY( ! std::lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v |
| VERIFY( std::lexicographical_compare(i, i+3, ck, ck+3) ); // v c |
| VERIFY( std::lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c |
| VERIFY( ! std::lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv |
| |
| #if __cplusplus > 201703L |
| using std::ranges::lexicographical_compare; |
| VERIFY( ! lexicographical_compare(i+1, i+4, j, j+2) ); // v v |
| VERIFY( lexicographical_compare(i+2, i+4, k, k+3) ); // v u |
| VERIFY( ! lexicographical_compare(k, k+3, i+1, i+4) ); // u v |
| |
| VERIFY( lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv |
| VERIFY( ! lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v |
| VERIFY( lexicographical_compare(i, i+2, cj, cj+2) ); // v cv |
| VERIFY( lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u |
| VERIFY( ! lexicographical_compare(k, k+2, cj, cj+3) ); // u cv |
| |
| VERIFY( ! lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v |
| VERIFY( lexicographical_compare(i, i+3, ck, ck+3) ); // v c |
| VERIFY( lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c |
| VERIFY( ! lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv |
| #endif |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| } |