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// <deque>
10
11// class deque
12
13// size_type size() const noexcept;
14
15#include "asan_testing.h"
16#include <deque>
17#include <cassert>
18
19#include "test_macros.h"
20#include "min_allocator.h"
21
22int main(int, char**) {
23 {
24 typedef std::deque<int> C;
25 C c;
26 ASSERT_NOEXCEPT(c.size());
27 assert(c.size() == 0);
28 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
29 c.push_back(x: C::value_type(2));
30 assert(c.size() == 1);
31 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
32 c.push_back(x: C::value_type(1));
33 assert(c.size() == 2);
34 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
35 c.push_back(x: C::value_type(3));
36 assert(c.size() == 3);
37 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
38 c.erase(position: c.begin());
39 assert(c.size() == 2);
40 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
41 c.erase(position: c.begin());
42 assert(c.size() == 1);
43 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
44 c.erase(position: c.begin());
45 assert(c.size() == 0);
46 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
47 }
48#if TEST_STD_VER >= 11
49 {
50 typedef std::deque<int, min_allocator<int>> C;
51 C c;
52 ASSERT_NOEXCEPT(c.size());
53 assert(c.size() == 0);
54 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
55 c.push_back(C::value_type(2));
56 assert(c.size() == 1);
57 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
58 c.push_back(C::value_type(1));
59 assert(c.size() == 2);
60 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
61 c.push_back(C::value_type(3));
62 assert(c.size() == 3);
63 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
64 c.erase(c.begin());
65 assert(c.size() == 2);
66 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
67 c.erase(c.begin());
68 assert(c.size() == 1);
69 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
70 c.erase(c.begin());
71 assert(c.size() == 0);
72 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
73 }
74#endif
75
76 return 0;
77}
78

source code of libcxx/test/std/containers/sequences/deque/deque.capacity/size.pass.cpp