xref: /llvm-project/libcxx/test/std/containers/sequences/vector/vector.cons/copy.pass.cpp (revision 8100aa4c02b04cd7d03b472f770d540f28cf5150)
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 // <vector>
10 
11 // vector(const vector& v);
12 
13 #include <vector>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 #include "test_allocator.h"
18 #include "min_allocator.h"
19 #include "asan_testing.h"
20 
21 template <class C>
22 TEST_CONSTEXPR_CXX20 void
test(const C & x)23 test(const C& x)
24 {
25     typename C::size_type s = x.size();
26     C c(x);
27     LIBCPP_ASSERT(c.__invariants());
28     assert(c.size() == s);
29     assert(c == x);
30     LIBCPP_ASSERT(is_contiguous_container_asan_correct(c));
31 }
32 
tests()33 TEST_CONSTEXPR_CXX20 bool tests() {
34     {
35         int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 1, 0};
36         int* an = a + sizeof(a)/sizeof(a[0]);
37         test(std::vector<int>(a, an));
38     }
39     {
40         std::vector<int, test_allocator<int> > v(3, 2, test_allocator<int>(5));
41         std::vector<int, test_allocator<int> > v2 = v;
42         assert(is_contiguous_container_asan_correct(v));
43         assert(is_contiguous_container_asan_correct(v2));
44         assert(v2 == v);
45         assert(v2.get_allocator() == v.get_allocator());
46         assert(is_contiguous_container_asan_correct(v));
47         assert(is_contiguous_container_asan_correct(v2));
48     }
49     {
50         // Test copy ctor with empty source
51         std::vector<int, test_allocator<int> > v(test_allocator<int>(5));
52         std::vector<int, test_allocator<int> > v2 = v;
53         assert(is_contiguous_container_asan_correct(v));
54         assert(is_contiguous_container_asan_correct(v2));
55         assert(v2 == v);
56         assert(v2.get_allocator() == v.get_allocator());
57         assert(is_contiguous_container_asan_correct(v));
58         assert(is_contiguous_container_asan_correct(v2));
59         assert(v2.empty());
60     }
61 #if TEST_STD_VER >= 11
62     {
63         std::vector<int, other_allocator<int> > v(3, 2, other_allocator<int>(5));
64         std::vector<int, other_allocator<int> > v2 = v;
65         assert(is_contiguous_container_asan_correct(v));
66         assert(is_contiguous_container_asan_correct(v2));
67         assert(v2 == v);
68         assert(v2.get_allocator() == other_allocator<int>(-2));
69         assert(is_contiguous_container_asan_correct(v));
70         assert(is_contiguous_container_asan_correct(v2));
71     }
72     {
73         int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 1, 0};
74         int* an = a + sizeof(a)/sizeof(a[0]);
75         test(std::vector<int, min_allocator<int>>(a, an));
76         test(std::vector<int, safe_allocator<int>>(a, an));
77     }
78     {
79         std::vector<int, min_allocator<int> > v(3, 2, min_allocator<int>());
80         std::vector<int, min_allocator<int> > v2 = v;
81         assert(is_contiguous_container_asan_correct(v));
82         assert(is_contiguous_container_asan_correct(v2));
83         assert(v2 == v);
84         assert(v2.get_allocator() == v.get_allocator());
85         assert(is_contiguous_container_asan_correct(v));
86         assert(is_contiguous_container_asan_correct(v2));
87     }
88     {
89       std::vector<int, safe_allocator<int> > v(3, 2, safe_allocator<int>());
90       std::vector<int, safe_allocator<int> > v2 = v;
91       assert(is_contiguous_container_asan_correct(v));
92       assert(is_contiguous_container_asan_correct(v2));
93       assert(v2 == v);
94       assert(v2.get_allocator() == v.get_allocator());
95       assert(is_contiguous_container_asan_correct(v));
96       assert(is_contiguous_container_asan_correct(v2));
97     }
98 #endif
99 
100     return true;
101 }
102 
test_copy_from_volatile_src()103 void test_copy_from_volatile_src() {
104     volatile int src[] = {1, 2, 3};
105     std::vector<int> v(src, src + 3);
106     assert(v[0] == 1);
107     assert(v[1] == 2);
108     assert(v[2] == 3);
109 }
110 
main(int,char **)111 int main(int, char**)
112 {
113     tests();
114 #if TEST_STD_VER > 17
115     static_assert(tests());
116 #endif
117     test_copy_from_volatile_src();
118     return 0;
119 }
120