1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <memory>
// unique_ptr
// test swap
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "unique_ptr_test_helper.h"
struct TT {
int state_;
static int count;
TEST_CONSTEXPR_CXX23 TT() : state_(-1) {
if (!TEST_IS_CONSTANT_EVALUATED)
++count;
}
TEST_CONSTEXPR_CXX23 explicit TT(int i) : state_(i) {
if (!TEST_IS_CONSTANT_EVALUATED)
++count;
}
TEST_CONSTEXPR_CXX23 TT(const TT& a) : state_(a.state_) {
if (!TEST_IS_CONSTANT_EVALUATED)
++count;
}
TEST_CONSTEXPR_CXX23 TT& operator=(const TT& a) {
state_ = a.state_;
return *this;
}
TEST_CONSTEXPR_CXX23 ~TT() {
if (!TEST_IS_CONSTANT_EVALUATED)
--count;
}
friend TEST_CONSTEXPR_CXX23 bool operator==(const TT& x, const TT& y) { return x.state_ == y.state_; }
};
int TT::count = 0;
template <class T>
TEST_CONSTEXPR_CXX23 typename std::remove_all_extents<T>::type* newValueInit(int size, int new_value) {
typedef typename std::remove_all_extents<T>::type VT;
VT* p = newValue<T>(size);
for (int i = 0; i < size; ++i)
(p + i)->state_ = new_value;
return p;
}
template <bool IsArray>
TEST_CONSTEXPR_CXX23 void test_basic() {
typedef typename std::conditional<IsArray, TT[], TT>::type VT;
const int expect_alive = IsArray ? 5 : 1;
#if TEST_STD_VER >= 11
{
using U = std::unique_ptr<VT, Deleter<VT> >;
U u; ((void)u);
ASSERT_NOEXCEPT(u.swap(u));
}
#endif
{
TT* p1 = newValueInit<VT>(expect_alive, 1);
std::unique_ptr<VT, Deleter<VT> > s1(p1, Deleter<VT>(1));
TT* p2 = newValueInit<VT>(expect_alive, 2);
std::unique_ptr<VT, Deleter<VT> > s2(p2, Deleter<VT>(2));
assert(s1.get() == p1);
assert(*s1.get() == TT(1));
assert(s1.get_deleter().state() == 1);
assert(s2.get() == p2);
assert(*s2.get() == TT(2));
assert(s2.get_deleter().state() == 2);
s1.swap(s2);
assert(s1.get() == p2);
assert(*s1.get() == TT(2));
assert(s1.get_deleter().state() == 2);
assert(s2.get() == p1);
assert(*s2.get() == TT(1));
assert(s2.get_deleter().state() == 1);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(TT::count == (expect_alive * 2));
}
if (!TEST_IS_CONSTANT_EVALUATED)
assert(TT::count == 0);
}
TEST_CONSTEXPR_CXX23 bool test() {
test_basic</*IsArray*/ false>();
test_basic<true>();
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER >= 23
static_assert(test());
#endif
return 0;
}
|
