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99dee823 | 1 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
462f6c20 JW |
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 } | |
19 | ||
20 | #include <algorithm> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
23 | void | |
24 | test01() | |
25 | { | |
26 | volatile unsigned char i[] = { 0, 1, 2, 3 }; | |
27 | volatile unsigned char j[] = { 1, 2, 3 }; | |
28 | unsigned char k[] = { 2, 3, 4 }; | |
29 | ||
30 | // v = volatile, c = const, cv = const volatile, u = unqualified | |
31 | ||
32 | VERIFY( ! std::lexicographical_compare(i+1, i+4, j, j+2) ); // v v | |
33 | VERIFY( std::lexicographical_compare(i+2, i+4, k, k+3) ); // v u | |
34 | VERIFY( ! std::lexicographical_compare(k, k+3, i+1, i+4) ); // u v | |
35 | ||
36 | const volatile unsigned char* cj = j; | |
37 | VERIFY( std::lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv | |
38 | VERIFY( ! std::lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v | |
39 | VERIFY( std::lexicographical_compare(i, i+2, cj, cj+2) ); // v cv | |
40 | VERIFY( std::lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u | |
41 | VERIFY( ! std::lexicographical_compare(k, k+2, cj, cj+3) ); // u cv | |
42 | const unsigned char* ck = k; | |
43 | VERIFY( ! std::lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v | |
44 | VERIFY( std::lexicographical_compare(i, i+3, ck, ck+3) ); // v c | |
45 | VERIFY( std::lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c | |
46 | VERIFY( ! std::lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv | |
47 | ||
48 | #if __cplusplus > 201703L | |
49 | using std::ranges::lexicographical_compare; | |
50 | VERIFY( ! lexicographical_compare(i+1, i+4, j, j+2) ); // v v | |
51 | VERIFY( lexicographical_compare(i+2, i+4, k, k+3) ); // v u | |
52 | VERIFY( ! lexicographical_compare(k, k+3, i+1, i+4) ); // u v | |
53 | ||
54 | VERIFY( lexicographical_compare(cj, cj+2, cj+1, cj+3) ); // cv cv | |
55 | VERIFY( ! lexicographical_compare(cj, cj+3, i+1, i+4) ); // cv v | |
56 | VERIFY( lexicographical_compare(i, i+2, cj, cj+2) ); // v cv | |
57 | VERIFY( lexicographical_compare(cj+1, cj+3, k, k+3) ); // cv u | |
58 | VERIFY( ! lexicographical_compare(k, k+2, cj, cj+3) ); // u cv | |
59 | ||
60 | VERIFY( ! lexicographical_compare(ck, ck+2, i+1, i+2) ); // c v | |
61 | VERIFY( lexicographical_compare(i, i+3, ck, ck+3) ); // v c | |
62 | VERIFY( lexicographical_compare(cj+1, cj+3, ck, ck+3) ); // cv c | |
63 | VERIFY( ! lexicographical_compare(ck, ck+1, cj, cj+2) ); // c cv | |
64 | #endif | |
65 | } | |
66 | ||
67 | int | |
68 | main() | |
69 | { | |
70 | test01(); | |
71 | } |