blob: 35d5e4b02fb4dc827592440ef1aae93ae70df097 (
plain)
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
|
// I, Howard Hinnant, hereby place this code in the public domain.
// Test: Implicit cast to rvalue when eliding copy
// { dg-do compile }
// { dg-options "-std=c++0x" }
template <bool> struct sa;
template <> struct sa<true> {};
struct one {char x[1];};
struct two {char x[2];};
class move_only
{
move_only(const move_only&);
move_only& operator=(const move_only&);
public:
move_only() {}
move_only(move_only&&) {}
move_only& operator=(move_only&&) {return *this;}
};
move_only
test1()
{
return move_only();
}
move_only
test2()
{
move_only x;
return x;
}
move_only
test3(bool b)
{
move_only x1;
if (b)
{
move_only x2;
return x2;
}
return x1;
}
void
test4(bool b)
{
if (!b)
throw move_only();
}
void
test5(bool b)
{
move_only x;
if (!b)
throw x;
}
extern bool b;
int main()
{
move_only t1 = test1();
move_only t2 = test2();
move_only t3 = test3(b);
test4(b);
test5(b);
return 0;
}
bool b = true;
|
