C ++：指向对象的指针 [英] C++: Operator overloading of < for pointers to objects

问题描述

我想通过他们的地址比较两个对象。我试过操作符重载，它似乎不工作的指针，但工作对象本身。以下是相关代码：

  class C {
 public：
 int x; 
}; 
。 
。 
。 
 bool operator<（C * ptr_c1，C * ptr_c2）
 {
 return（（* ptr_c1）.x<（* ptr_c2）.x）; 
} 
  

解决方案

>

• 通用少<> 用于C ++标准中的指针

I would like to compare two objects through their addresses. I tried operator overloading and it does not seem to work for pointers, but works for objects themselves. The following is the relevant code:

class C {
        public:
                int x;
};
.
.
.
bool operator <( C *ptr_c1, C *ptr_c2 )
{
        return ( (*ptr_c1).x < (*ptr_c2).x );
}

解决方案

See these:

• Universal less<> for pointers in C++ standard
• What are the operations supported by raw pointer and function pointer in C/C++?

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