C++博客- [HORSETAIL]http://www.cppblog.com/horsetail/花儿,总会有谢的时候zh-cnSat, 04 Apr 2026 09:55:48 GMTSat, 04 Apr 2026 09:55:48 GMT60重载操作符 ->http://www.cppblog.com/horsetail/archive/2007/02/05/18386.html[HORSETAIL][HORSETAIL]Mon, 05 Feb 2007 05:17:00 GMThttp://www.cppblog.com/horsetail/archive/2007/02/05/18386.htmlhttp://www.cppblog.com/horsetail/comments/18386.htmlhttp://www.cppblog.com/horsetail/archive/2007/02/05/18386.html#Feedback3http://www.cppblog.com/horsetail/comments/commentRss/18386.htmlhttp://www.cppblog.com/horsetail/services/trackbacks/18386.html       如:
 1 class A{
 2 public:
 3 void why(){return ;}
 4 a * operator ->()const{return this;}
 5 };
 6 
 7 int main()
 8 {
 9    A   Pos;
10    Pos->why();  //展开后: Pos.operator->()->why()
11 return 0;
12 }
13 

可以看出,在运用了自定义的箭头操作符后,编译器还会暗地里为我们运行一次箭头操作符.为此,我们在自定义操作符的时候,函数返回类型应该是类的指针或者具有自定义类的类!!我想,这也是自定义箭头操作符的约束吧!!1

[HORSETAIL] 2007-02-05 13:17 发表评论
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