std::allocator<T>::max_size

 

C++

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std::allocator

成员函数

allocator::allocator

allocator::~allocator

allocator::address (C++20 前)

allocator::allocate

allocator::allocate_at_least (C++23)

allocator::deallocate

allocator::max_size (C++20 前)

allocator::construct (C++20 前)

allocator::destroy (C++20 前)

非成员函数

operator==operator!= (C++20 前)

 

size_type max_size() const throw();		(C++11 前)
size_type max_size() const noexcept;		(C++11 起) (C++17 中弃用) (C++20 中移除)

返回理论上可行的 n 最大值，对于它 allocate(n, 0) 调用可能成功。

大部分实现中，它返回 std::numeric_limits<size_type>::max() / sizeof(value_type) 。

参数

（无）

返回值

受支持的最大分配大小

参阅

max_size [静态]

返回分配器所支持的最大对象大小 (std::allocator_traits<Alloc> 的公开静态成员函数)