allocator 参考手册

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本文详细介绍了 C++ 中 core::allocator 类的成员类型与成员函数，包括构造与析构、地址返回、内存分配与释放等功能，并提供了模板特化的具体说明。

template <class T, int inst> class allocator;

member type	definition	represents
value_type	T	Element type
pointer	T*	Pointer to element
const_pointer	const T*	Pointer to constant element
reference	T&	Reference to element
const_reference	const T&	Reference to constant element
size_type	size_t	Quantities of elements
difference_type	ptrdiff_t	Difference between two pointers
rebind<U>	member class	Its member type other is the equivalent allocator type to allocate elements of type U
propagate_on_container_move_assignment	true_type	Indicates that allocator shall propagate when the container is move-assigned
is_always_equal	true_type

(constructor)	Construct allocator object (public member function)
(destructor)	Allocator destructor (public member function)
address	Return address (public member function)
allocate	Allocate block of storage (public member function)
deallocate	Release block of storage (public member function)
capacity	Return heap size (public member function)
size	Return the size of the used (public member function)
max_size	Maximum size possible to allocate (public member function)
construct	Construct an object (public member function)
destroy	Destroy an object (public member function)

template <int inst> class allocator<void, inst>;

member type	definition	represents
value_type	void	Element type
pointer	void*	Pointer to element
const_pointer	const void*	Pointer to constant element
size_type	size_t	Quantities of elements
difference_type	ptrdiff_t	Difference between two pointers
rebind<U>	member class	Its member type other is the equivalent allocator type to allocate elements of type U