111 template <typename T> class SwapAllocator;  variable
114 class SwapAllocator<void> {
122     typedef SwapAllocator<U> other;
125   explicit SwapAllocator(SwapSpace* swap_space) : swap_space_(swap_space) {}  in SwapAllocator()  function
128   SwapAllocator(const SwapAllocator<U>& other)  in SwapAllocator()  function
131   SwapAllocator(const SwapAllocator& other) = default;
132   SwapAllocator& operator=(const SwapAllocator& other) = default;
133   ~SwapAllocator() = default;
139   friend class SwapAllocator;  variable
142   friend bool operator==(const SwapAllocator<U>& lhs, const SwapAllocator<U>& rhs);
146 class SwapAllocator {
158     typedef SwapAllocator<U> other;
161   explicit SwapAllocator(SwapSpace* swap_space) : swap_space_(swap_space) {}  in SwapAllocator()  function
164   SwapAllocator(const SwapAllocator<U>& other)  in SwapAllocator()  function
167   SwapAllocator(const SwapAllocator& other) = default;
168   SwapAllocator& operator=(const SwapAllocator& other) = default;
169   ~SwapAllocator() = default;
178   pointer allocate(size_type n, SwapAllocator<void>::pointer hint ATTRIBUTE_UNUSED = nullptr) {
207   inline bool operator==(SwapAllocator const& other) {
210   inline bool operator!=(SwapAllocator const& other) {
218   friend class SwapAllocator;  variable
221   friend bool operator==(const SwapAllocator<U>& lhs, const SwapAllocator<U>& rhs);
225 inline bool operator==(const SwapAllocator<T>& lhs, const SwapAllocator<T>& rhs) {
230 inline bool operator!=(const SwapAllocator<T>& lhs, const SwapAllocator<T>& rhs) {
235 using SwapVector = std::vector<T, SwapAllocator<T>>;
237 using SwapSet = std::set<T, Comparator, SwapAllocator<T>>;