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33 lines
933 B
Markdown
33 lines
933 B
Markdown
2 years ago
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---
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icon: edit
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date: 2023-01-11
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category:
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- 系统配置
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- cpp
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tag:
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- 操作符
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- 重载
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headerDepth: 5
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---
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# c++ 能重载的操作符有那些
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重载操作符是指重新定义C++中已有运算符的含义。常见的重载操作符有:
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```
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算术运算符: +, -, *, /, %
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关系运算符: ==, !=, >, <, >=, <=
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逻辑运算符: &&, ||, !
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赋值运算符: =
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位运算符: &, |, ^, ~, <<, >>
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自增/自减运算符: ++, --
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成员访问运算符: ->, .
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下标运算符: [ ]
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函数调用运算符: ( )
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转型运算符: (type)
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new 和 delete 运算符: new, delete, new[], delete[]
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另外还有三个特殊的运算符是可以被重载的：
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复合赋值运算符: +=, -=, *=, /=, %=, &=, |=, ^=, <<=, >>=
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串联运算符: <<, >>
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逗号运算符: ,
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```
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需要注意的是所有运算符重载都需要在类内部进行，且实现的时候可能需要使用特殊的关键字来实现，如 ```friend``` 和 ```operator```.
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