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// UNSUPPORTED: c++03, c++11
10
11// <propagate_const>
12
13// template <class T> constexpr bool operator<=(const propagate_const<T>& x, const propagate_const<T>& y);
14// template <class T> constexpr bool operator<=(const T& x, const propagate_const<T>& y);
15// template <class T> constexpr bool operator<=(const propagate_const<T>& x, const T& y);
16
17#include <experimental/propagate_const>
18#include "test_macros.h"
19#include "propagate_const_helpers.h"
20#include <cassert>
21
22using std::experimental::propagate_const;
23
24constexpr bool operator<=(const X &lhs, const X &rhs) {
25 return lhs.i_ <= rhs.i_;
26}
27
28int main(int, char**) {
29 constexpr X x1_1(1);
30 constexpr X x2_1(1);
31 constexpr X x3_2(2);
32
33 static_assert(x1_1 <= x2_1, "");
34 static_assert(x1_1 <= x3_2, "");
35 static_assert(!(x3_2 <= x1_1), "");
36
37 typedef propagate_const<X> P;
38
39 constexpr P p1_1(1);
40 constexpr P p2_1(1);
41 constexpr P p3_2(2);
42
43 static_assert(p1_1 <= p2_1, "");
44 static_assert(p1_1 <= p3_2, "");
45 static_assert(!(p3_2 <= p1_1), "");
46
47 static_assert(p1_1 <= x2_1, "");
48 static_assert(p1_1 <= x3_2, "");
49 static_assert(!(p3_2 <= x1_1), "");
50
51 static_assert(x1_1 <= p2_1, "");
52 static_assert(x1_1 <= p3_2, "");
53 static_assert(!(x3_2 <= p1_1), "");
54
55
56 return 0;
57}
58

source code of libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/less_equal.pass.cpp