| 1 | // RUN: %clang_cc1 -std=c++11 -fsyntax-only -fobjc-arc -verify -fblocks -Wpessimizing-move -Wredundant-move %s |
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| 2 | |
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| 3 | // definitions for std::move |
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| 4 | namespace std { |
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| 5 | inline namespace foo { |
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| 6 | template <class T> struct remove_reference { typedef T type; }; |
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| 7 | template <class T> struct remove_reference<T&> { typedef T type; }; |
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| 8 | template <class T> struct remove_reference<T&&> { typedef T type; }; |
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| 9 | |
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| 10 | template <class T> typename remove_reference<T>::type &&move(T &&t); |
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| 11 | } |
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| 12 | } |
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| 13 | |
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| 14 | class MoveOnly { |
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| 15 | public: |
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| 16 | MoveOnly() { } |
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| 17 | MoveOnly(MoveOnly &&) = default; // expected-note 2 {{copy constructor is implicitly deleted}} |
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| 18 | MoveOnly &operator=(MoveOnly &&) = default; |
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| 19 | ~MoveOnly(); |
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| 20 | }; |
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| 21 | |
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| 22 | void copyInit() { |
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| 23 | __block MoveOnly temp; |
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| 24 | MoveOnly temp2 = temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}} |
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| 25 | MoveOnly temp3 = std::move(temp); // ok |
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| 26 | } |
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| 27 | |
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| 28 | MoveOnly errorOnCopy() { |
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| 29 | __block MoveOnly temp; |
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| 30 | return temp; // expected-error {{call to implicitly-deleted copy constructor of 'MoveOnly'}} |
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| 31 | } |
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| 32 | |
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| 33 | MoveOnly dontWarnOnMove() { |
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| 34 | __block MoveOnly temp; |
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| 35 | return std::move(temp); // ok |
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| 36 | } |
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| 37 | |
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| 38 | class MoveOnlySub : public MoveOnly {}; |
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| 39 | |
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| 40 | MoveOnly dontWarnOnMoveSubclass() { |
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| 41 | __block MoveOnlySub temp; |
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| 42 | return std::move(temp); // ok |
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| 43 | } |
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| 44 | |
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