xref: /llvm-project/libcxx/test/std/containers/sequences/deque/deque.special/swap.pass.cpp (revision 10ec9276d40024c23a481e6671dad1521151dd85)
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 T, class A>
12 //   void swap(deque<T, A>& x, deque<T, A>& y);
13 
14 #include "asan_testing.h"
15 #include <deque>
16 #include <cassert>
17 #include "test_macros.h"
18 #include "test_allocator.h"
19 #include "min_allocator.h"
20 
21 template <class C>
22 C
make(int size,int start=0)23 make(int size, int start = 0 )
24 {
25     const int b = 4096 / sizeof(int);
26     int init = 0;
27     if (start > 0)
28     {
29         init = (start+1) / b + ((start+1) % b != 0);
30         init *= b;
31         --init;
32     }
33     C c(init, 0);
34     for (int i = 0; i < init-start; ++i)
35         c.pop_back();
36     for (int i = 0; i < size; ++i)
37         c.push_back(i);
38     for (int i = 0; i < start; ++i)
39         c.pop_front();
40     return c;
41 }
42 
43 template <class C>
testN(int start,int N,int M)44 void testN(int start, int N, int M)
45 {
46     C c1 = make<C>(N, start);
47     C c2 = make<C>(M);
48     C c1_save = c1;
49     C c2_save = c2;
50     swap(c1, c2);
51     assert(c1 == c2_save);
52     assert(c2 == c1_save);
53     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1));
54     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c2));
55     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1_save));
56     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c2_save));
57 }
58 
main(int,char **)59 int main(int, char**)
60 {
61     {
62         int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
63         const int N = sizeof(rng)/sizeof(rng[0]);
64         for (int i = 0; i < N; ++i)
65             for (int j = 0; j < N; ++j)
66                 for (int k = 0; k < N; ++k)
67                     testN<std::deque<int> >(rng[i], rng[j], rng[k]);
68     }
69     {
70         int a1[] = {1, 3, 7, 9, 10};
71         int a2[] = {0, 2, 4, 5, 6, 8, 11};
72         typedef test_allocator<int> A;
73         std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A(1, 1));
74         std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A(1, 2));
75         swap(c1, c2);
76         assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
77         assert(c1.get_allocator().get_id() == 1);
78         assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
79         assert(c2.get_allocator().get_id() == 2);
80         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1));
81         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c2));
82     }
83     {
84         int a1[] = {1, 3, 7, 9, 10};
85         int a2[] = {0, 2, 4, 5, 6, 8, 11};
86         typedef other_allocator<int> A;
87         std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A(1));
88         std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A(2));
89         swap(c1, c2);
90         assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
91         assert(c1.get_allocator() == A(2));
92         assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
93         assert(c2.get_allocator() == A(1));
94         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1));
95         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c2));
96     }
97 #if TEST_STD_VER >= 11
98     {
99         int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
100         const int N = sizeof(rng)/sizeof(rng[0]);
101         for (int i = 0; i < N; ++i)
102             for (int j = 0; j < N; ++j)
103                 for (int k = 0; k < N; ++k)
104                     testN<std::deque<int, min_allocator<int>> >(rng[i], rng[j], rng[k]);
105     }
106     {
107         int a1[] = {1, 3, 7, 9, 10};
108         int a2[] = {0, 2, 4, 5, 6, 8, 11};
109         typedef min_allocator<int> A;
110         std::deque<int, A> c1(a1, a1+sizeof(a1)/sizeof(a1[0]), A());
111         std::deque<int, A> c2(a2, a2+sizeof(a2)/sizeof(a2[0]), A());
112         swap(c1, c2);
113         assert((c1 == std::deque<int, A>(a2, a2+sizeof(a2)/sizeof(a2[0]))));
114         assert(c1.get_allocator() == A());
115         assert((c2 == std::deque<int, A>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
116         assert(c2.get_allocator() == A());
117         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c1));
118         LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c2));
119     }
120 #endif
121 
122   return 0;
123 }
124