copyconstructor.C
1.63 KB
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
//
// 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
#include <stdio.h>
#include <Block.h>
// CONFIG C++ rdar://6243400,rdar://6289367
int constructors = 0;
int destructors = 0;
#define CONST const
class TestObject
{
public:
TestObject(CONST TestObject& inObj);
TestObject();
~TestObject();
TestObject& operator=(CONST TestObject& inObj);
int version() CONST { return _version; }
private:
mutable int _version;
};
TestObject::TestObject(CONST TestObject& inObj)
{
++constructors;
_version = inObj._version;
//printf("%p (%d) -- TestObject(const TestObject&) called\n", this, _version);
}
TestObject::TestObject()
{
_version = ++constructors;
//printf("%p (%d) -- TestObject() called\n", this, _version);
}
TestObject::~TestObject()
{
//printf("%p -- ~TestObject() called\n", this);
++destructors;
}
TestObject& TestObject::operator=(CONST TestObject& inObj)
{
//printf("%p -- operator= called\n", this);
_version = inObj._version;
return *this;
}
void testRoutine() {
TestObject one;
void (^b)(void) = ^{ printf("my const copy of one is %d\n", one.version()); };
}
int main(int argc, char *argv[]) {
testRoutine();
if (constructors == 0) {
printf("No copy constructors!!!\n");
return 1;
}
if (constructors != destructors) {
printf("%d constructors but only %d destructors\n", constructors, destructors);
return 1;
}
printf("%s:success\n", argv[0]);
return 0;
}