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45 lines
1017 B
Markdown
45 lines
1017 B
Markdown
# Array::operator=
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```cpp
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Array& operator=(const Array& other);
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Array& operator=(Array&& other) noexcept;
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```
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赋值运算符，用另一个数组的内容替换当前数组的内容。
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**拷贝赋值（`=`）：**
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- 先销毁当前所有元素
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- 分配与 `other` 相同大小的内存
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- 拷贝 `other` 中所有元素
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**移动赋值（`=`）：**
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- 先销毁当前所有元素
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- 接管 `other` 的所有资源（数据指针、容量）
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- 将 `other` 置为空状态
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**参数：**
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- `other` - 源数组
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**返回：** 引用自身（`*this`）
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**异常：**
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- 拷贝赋值：`other` 元素拷贝可能抛出异常
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**线程安全：** ❌ 赋值期间不可并发访问
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**示例：**
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```cpp
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Containers::Array<int> arr1 = {1, 2, 3};
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Containers::Array<int> arr2;
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arr2 = arr1; // 拷贝赋值，arr2 现在是 {1, 2, 3}
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Containers::Array<int> arr3 = {4, 5};
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arr2 = std::move(arr3); // 移动赋值，arr2 现在是 {4, 5}，arr3 为空
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```
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## 相关文档
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- [Array 总览](array.md) - 返回类总览
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