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placement new 勘误 README_Details.md

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https://github.com/huihut/interview/pull/33
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huihut 2019-03-27 20:16:54 +08:00
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1 changed files with 6 additions and 6 deletions
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README_Details.md
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@ -988,16 +988,16 @@ int main()
#### 定位 new
定位 new（placement new）允许我们向 new 传递额外的参数。
定位 new（placement new）允许我们向 new 传递额外的地址参数，从而在预先指定的内存区域创建对象。
```cpp
new (palce_address) type
new (palce_address) type (initializers)
new (palce_address) type [size]
new (palce_address) type [size] { braced initializer list }
new (place_address) type
new (place_address) type (initializers)
new (place_address) type [size]
new (place_address) type [size] { braced initializer list }
```
* `palce_address` 是个指针
* `place_address` 是个指针
* `initializers` 提供一个（可能为空的）以逗号分隔的初始值列表
### delete this 合法吗？