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// template <class... Args> iterator emplace(const_iterator p, Args&&... args);
12
13// UNSUPPORTED: c++03
14
15#include "asan_testing.h"
16#include <deque>
17#include <cassert>
18#include <cstddef>
19
20#include "test_macros.h"
21#include "../../../Emplaceable.h"
22#include "min_allocator.h"
23
24
25template <class C>
26C
27make(int size, int start = 0 )
28{
29 const int b = 4096 / sizeof(int);
30 int init = 0;
31 if (start > 0)
32 {
33 init = (start+1) / b + ((start+1) % b != 0);
34 init *= b;
35 --init;
36 }
37 C c(init);
38 for (int i = 0; i < init-start; ++i)
39 c.pop_back();
40 for (int i = 0; i < size; ++i)
41 c.push_back(Emplaceable());
42 for (int i = 0; i < start; ++i)
43 c.pop_front();
44 return c;
45}
46
47template <class C>
48void
49test(int P, C& c1)
50{
51 typedef typename C::const_iterator CI;
52 std::size_t c1_osize = c1.size();
53 CI i = c1.emplace(c1.begin() + P, Emplaceable(1, 2.5));
54 assert(i == c1.begin() + P);
55 assert(c1.size() == c1_osize + 1);
56 assert(static_cast<std::size_t>(std::distance(c1.begin(), c1.end())) == c1.size());
57 assert(*i == Emplaceable(1, 2.5));
58 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1));
59}
60
61template <class C>
62void
63testN(int start, int N)
64{
65 for (int i = 0; i <= 3; ++i)
66 {
67 if (0 <= i && i <= N)
68 {
69 C c1 = make<C>(N, start);
70 test(i, c1);
71 }
72 }
73 for (int i = N/2-1; i <= N/2+1; ++i)
74 {
75 if (0 <= i && i <= N)
76 {
77 C c1 = make<C>(N, start);
78 test(i, c1);
79 }
80 }
81 for (int i = N - 3; i <= N; ++i)
82 {
83 if (0 <= i && i <= N)
84 {
85 C c1 = make<C>(N, start);
86 test(i, c1);
87 }
88 }
89}
90
91
92int main(int, char**)
93{
94 {
95 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
96 const int N = sizeof(rng)/sizeof(rng[0]);
97 for (int i = 0; i < N; ++i)
98 for (int j = 0; j < N; ++j)
99 testN<std::deque<Emplaceable> >(rng[i], rng[j]);
100 }
101 {
102 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
103 const int N = sizeof(rng)/sizeof(rng[0]);
104 for (int i = 0; i < N; ++i)
105 for (int j = 0; j < N; ++j)
106 testN<std::deque<Emplaceable, min_allocator<Emplaceable>> >(rng[i], rng[j]);
107 }
108 {
109 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
110 const int N = sizeof(rng)/sizeof(rng[0]);
111 for (int i = 0; i < N; ++i)
112 for (int j = 0; j < N; ++j)
113 testN<std::deque<Emplaceable, safe_allocator<Emplaceable>> >(rng[i], rng[j]);
114 }
115
116 return 0;
117}
118

source code of libcxx/test/std/containers/sequences/deque/deque.modifiers/emplace.pass.cpp