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XCSDD/docs/api/containers/hashmap/operator-assign.md
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HashMap::operator=

HashMap& operator=(const HashMap& other);
HashMap& operator=(HashMap&& other) noexcept;

赋值运算符,用另一个 HashMap 的内容替换当前内容。

参数:

  • other - 源哈希表(拷贝版本为 const 引用,移动版本为右值引用)

返回: 对当前对象的引用 (*this)

复杂度:

  • 拷贝赋值O(m_bucketCount + other.m_size)
  • 移动赋值O(m_size),需要先清空当前内容

示例:

XCEngine::Containers::HashMap<int, const char*> map1;
map1.Insert(1, "one");
map1.Insert(2, "two");

XCEngine::Containers::HashMap<int, const char*> map2;
map2 = map1; // 拷贝赋值

XCEngine::Containers::HashMap<int, const char*> map3;
map3 = std::move(map1); // 移动赋值map1 在此调用后状态不确定

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