1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <forward_list>
10
11// template <class T, class Allocator>
12// bool operator< (const forward_list<T, Allocator>& x,
13// const forward_list<T, Allocator>& y); // constexpr since C++26
14//
15// template <class T, class Allocator>
16// bool operator> (const forward_list<T, Allocator>& x,
17// const forward_list<T, Allocator>& y); // constexpr since C++26
18//
19// template <class T, class Allocator>
20// bool operator>=(const forward_list<T, Allocator>& x,
21// const forward_list<T, Allocator>& y); // constexpr since C++26
22//
23// template <class T, class Allocator>
24// bool operator<=(const forward_list<T, Allocator>& x,
25// const forward_list<T, Allocator>& y); // constexpr since C++26
26
27#include <forward_list>
28#include <iterator>
29#include <algorithm>
30#include <cassert>
31
32#include "test_macros.h"
33#include "min_allocator.h"
34
35template <class C>
36TEST_CONSTEXPR_CXX26 void test(int N, int M) {
37 C c1;
38 for (int i = 0; i < N; ++i)
39 c1.push_front(i);
40 C c2;
41 for (int i = 0; i < M; ++i)
42 c2.push_front(i);
43 if (N < M)
44 assert(c1 < c2);
45 if (N <= M)
46 assert(c1 <= c2);
47 if (N >= M)
48 assert(c1 >= c2);
49 if (N > M)
50 assert(c1 > c2);
51}
52
53TEST_CONSTEXPR_CXX26 bool test() {
54 for (int i = 0; i < 10; ++i)
55 for (int j = 0; j < 10; ++j)
56 test<std::forward_list<int> >(i, j);
57#if TEST_STD_VER >= 11
58 for (int i = 0; i < 10; ++i)
59 for (int j = 0; j < 10; ++j)
60 test<std::forward_list<int, min_allocator<int>> >(i, j);
61#endif
62
63 return true;
64}
65
66int main(int, char**) {
67 assert(test());
68#if TEST_STD_VER >= 26
69 static_assert(test());
70#endif
71
72 return 0;
73}
74

source code of libcxx/test/std/containers/sequences/forwardlist/forwardlist.spec/relational.pass.cpp