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cppdraft/default/allocator/general.md

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+[default.allocator.general]
+
+# 20 Memory management library [[mem]](./#mem)
+
+## 20.2 Memory [[memory]](memory#default.allocator.general)
+
+### 20.2.10 The default allocator [[default.allocator]](default.allocator#general)
+
+#### 20.2.10.1 General [default.allocator.general]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/memory.tex#L1956)
+
+All specializations of the default allocator meet the
+allocator completeness requirements ([[allocator.requirements.completeness]](allocator.requirements.completeness "16.4.4.6.2 Allocator completeness requirements"))[.](#1.sentence-1)
+
+[🔗](#lib:allocator)
+
+namespace std {template<class T> class allocator {public:using value_type = T; using size_type = size_t; using difference_type = ptrdiff_t; using propagate_on_container_move_assignment = true_type; constexpr allocator() noexcept; constexpr allocator(const allocator&) noexcept; template<class U> constexpr allocator(const allocator<U>&) noexcept; constexpr ~allocator(); constexpr allocator& operator=(const allocator&) = default; constexpr T* allocate(size_t n); constexpr allocation_result<T*> allocate_at_least(size_t n); constexpr void deallocate(T* p, size_t n); };}
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/memory.tex#L1988)
+
+allocator_traits<allocator<T>>​::​is_always_equal​::​value is true for any T[.](#2.sentence-1)