static_pointer_cast
时间: 2023-04-25 09:04:41 浏览: 57
static_pointer_cast是C++11中的一个智能指针类型转换函数,用于将一个shared_ptr对象转换为另一个shared_ptr对象,转换的目标类型必须是源类型的公有派生类或者相同类型。该函数会进行类型检查,如果类型不匹配则会抛出std::bad_cast异常。
相关问题
reinterpret_cast reinterpret_pointer_cast
reinterpret_cast和reinterpret_pointer_cast都是C++中的类型转换操作符。引用中提到,reinterpret_pointer_cast的功能与reinterpret_cast类似,都是用于进行指针类型之间的转换。而引用中列举了C++中的几种智能指针转换方式,其中包括reinterpret_pointer_cast。
reinterpret_cast用于在不同类型之间进行强制转换,包括指针类型、引用类型、整数类型等。它可以将一个指针类型转换为另一个指针类型,但是要注意使用reinterpret_cast进行类型转换时,转换的类型之间必须具有相同的存储要求。
reinterpret_pointer_cast是C++中的智能指针类型转换操作符,用于将一个智能指针类型转换为另一个智能指针类型。它的功能与reinterpret_cast类似,但是它只能用于智能指针类型之间的转换。
总结起来,reinterpret_cast用于进行任意类型之间的强制转换,而reinterpret_pointer_cast则是用于智能指针类型之间的转换。它们的使用要慎重,因为错误的类型转换可能会导致程序运行出错。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [static_pointer_cast、dynamic_pointer_cast、const_pointer_cast、reinterpret_pointer_cast](https://blog.csdn.net/sunlin972913894/article/details/108427587)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *3* [C/C++ static_cast、dynamic_cast、const_cast、reinterpret_cast 笔记整理](https://blog.csdn.net/anwh9295/article/details/124357525)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]
static_cast
static_cast is a type of casting operator in the C++ programming language. It is used to perform explicit conversions between compatible types, such as converting between primitive types or converting a pointer to a base class into a pointer to a derived class.
For example, you can use static_cast to convert an integer to a floating-point number:
```
int num = 10;
double result = static_cast<double>(num);
```
In this case, the static_cast is used to convert the integer variable `num` into a double type, and the result is stored in the `result` variable.
Please let me know if you have any more questions!