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
|
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fobjc-arc -verify -fblocks -Wpessimizing-move -Wredundant-move %s
// definitions for std::move
namespace std {
inline namespace foo {
template <class T> struct remove_reference { typedef T type; };
template <class T> struct remove_reference<T&> { typedef T type; };
template <class T> struct remove_reference<T&&> { typedef T type; };
template <class T> typename remove_reference<T>::type &&move(T &&t);
}
}
class MoveOnly {
public:
MoveOnly() { }
MoveOnly(MoveOnly &&) = default; // expected-note 2 {{copy constructor is implicitly deleted}}
MoveOnly &operator=(MoveOnly &&) = default;
~MoveOnly();
};
void copyInit() {
__block MoveOnly temp;
MoveOnly temp2 = temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}}
MoveOnly temp3 = std::move(temp); // ok
}
MoveOnly errorOnCopy() {
__block MoveOnly temp;
return temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}}
}
MoveOnly dontWarnOnMove() {
__block MoveOnly temp;
return std::move(temp); // ok
}
class MoveOnlySub : public MoveOnly {};
MoveOnly dontWarnOnMoveSubclass() {
__block MoveOnlySub temp;
return std::move(temp); // ok
}
|
