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std::unordered_multimap::max_bucket_count
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std::unordered_multiset::max_size
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std::unordered_multimap::max_size

STD：无序[医]Multimap：：[医]大小

size_type max_size() const;​(since C++11)

返回容器由于系统或库实现限制而能够容纳的最大元素数，即std::distance(begin(), end())最大的集装箱。

参数

%280%29

返回值

最大元素数。

例外

noexcept规格：

noexcept

复杂性

常量。

注记

此值通常反映容器大小的理论限制。在运行时，容器的大小可能被限制为小于max_size()可用内存的数量。

例

二次

#include <iostream>
#include <unordered_map>
 
int main()
{
    std::unordered_multimap<char,char> s;
    std::cout << "Maximum size of a 'unordered_multimap' is " << s.max_size() << "\n";
}

二次

可能的产出：

二次

Maximum size of a 'unordered_multimap' is 18446744073709551615

二次

另见

sizereturns the number of elements (public member function)

 © cppreference.com

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http：//en.cppreference.com/w/cpp/container/unorder[医]Multimap/最大值[医]大小

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