cmp_nullptr.pass.cpp revision 069bdd52c1a89e106cad3b8894b2bc8013632aa2 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <memory>
11
12// shared_ptr
13
14// template <class T, class D>
15//     bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;
16// template <class T, class D>
17//     bool operator==(nullptr_t, const unique_ptr<T, D>& y) noexcept;
18// template <class T, class D>
19//     bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
20// template <class T, class D>
21//     bool operator!=(nullptr_t, const unique_ptr<T, D>& y) noexcept;
22// template <class T, class D>
23//     bool operator<(const unique_ptr<T, D>& x, nullptr_t) noexcept;
24// template <class T, class D>
25//     bool operator<(nullptr_t, const unique_ptr<T, D>& y) noexcept;
26// template <class T, class D>
27//     bool operator<=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
28// template <class T, class D>
29//     bool operator<=(nullptr_t, const unique_ptr<T, D>& y) noexcept;
30// template <class T, class D>
31//     bool operator>(const unique_ptr<T, D>& x, nullptr_t) noexcept;
32// template <class T, class D>
33//     bool operator>(nullptr_t, const unique_ptr<T, D>& y) noexcept;
34// template <class T, class D>
35//     bool operator>=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
36// template <class T, class D>
37//     bool operator>=(nullptr_t, const unique_ptr<T, D>& y) noexcept;
38
39#include <memory>
40#include <cassert>
41
42void do_nothing(int*) {}
43
44int main()
45{
46    const std::unique_ptr<int> p1(new int(1));
47    assert(!(p1 == nullptr));
48    assert(!(nullptr == p1));
49    assert(!(p1 < nullptr));
50    assert( (nullptr < p1));
51    assert(!(p1 <= nullptr));
52    assert( (nullptr <= p1));
53    assert( (p1 > nullptr));
54    assert(!(nullptr > p1));
55    assert( (p1 >= nullptr));
56    assert(!(nullptr >= p1));
57
58    const std::unique_ptr<int> p2;
59    assert( (p2 == nullptr));
60    assert( (nullptr == p2));
61    assert(!(p2 < nullptr));
62    assert(!(nullptr < p2));
63    assert( (p2 <= nullptr));
64    assert( (nullptr <= p2));
65    assert(!(p2 > nullptr));
66    assert(!(nullptr > p2));
67    assert( (p2 >= nullptr));
68    assert( (nullptr >= p2));
69}
70