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// <set>
10
11// template <class Key, class Compare = less<Key>,
12// class Allocator = allocator<Key>>
13// class set
14// {
15// public:
16// // types:
17// typedef Key key_type;
18// typedef key_type value_type;
19// typedef Compare key_compare;
20// typedef key_compare value_compare;
21// typedef Allocator allocator_type;
22// typedef typename allocator_type::reference reference;
23// typedef typename allocator_type::const_reference const_reference;
24// typedef typename allocator_type::pointer pointer;
25// typedef typename allocator_type::const_pointer const_pointer;
26// typedef typename allocator_type::size_type size_type;
27// typedef typename allocator_type::difference_type difference_type;
28// ...
29// };
30
31#include <set>
32#include <type_traits>
33
34#include "test_macros.h"
35#include "min_allocator.h"
36
37int main(int, char**)
38{
39 {
40 typedef std::set<int> C;
41 static_assert((std::is_same<C::key_type, int>::value), "");
42 static_assert((std::is_same<C::value_type, int>::value), "");
43 static_assert((std::is_same<C::key_compare, std::less<int> >::value), "");
44 static_assert((std::is_same<C::value_compare, std::less<int> >::value), "");
45 static_assert((std::is_same<C::allocator_type, std::allocator<int> >::value), "");
46 static_assert((std::is_same<C::reference, int&>::value), "");
47 static_assert((std::is_same<C::const_reference, const int&>::value), "");
48 static_assert((std::is_same<C::pointer, int*>::value), "");
49 static_assert((std::is_same<C::const_pointer, const int*>::value), "");
50 static_assert((std::is_same<C::size_type, std::size_t>::value), "");
51 static_assert((std::is_same<C::difference_type, std::ptrdiff_t>::value), "");
52 }
53#if TEST_STD_VER >= 11
54 {
55 typedef std::set<int, std::less<int>, min_allocator<int>> C;
56 static_assert((std::is_same<C::key_type, int>::value), "");
57 static_assert((std::is_same<C::value_type, int>::value), "");
58 static_assert((std::is_same<C::key_compare, std::less<int> >::value), "");
59 static_assert((std::is_same<C::value_compare, std::less<int> >::value), "");
60 static_assert((std::is_same<C::allocator_type, min_allocator<int> >::value), "");
61 static_assert((std::is_same<C::reference, int&>::value), "");
62 static_assert((std::is_same<C::const_reference, const int&>::value), "");
63 static_assert((std::is_same<C::pointer, min_pointer<int>>::value), "");
64 static_assert((std::is_same<C::const_pointer, min_pointer<const int>>::value), "");
65// min_allocator doesn't have a size_type, so one gets synthesized
66 static_assert((std::is_same<C::size_type, std::make_unsigned<C::difference_type>::type>::value), "");
67 static_assert((std::is_same<C::difference_type, std::ptrdiff_t>::value), "");
68 }
69#endif
70
71 return 0;
72}
73

source code of libcxx/test/std/containers/associative/set/types.pass.cpp