为什么在Delphi中类不能使用运算符重载？ [英] Why isn't operator overloading available for classes in Delphi?

问题描述

我一直想知道这一点，但为什么操作符重载不能用于Delphi中的类？

I've always wondered about this for a bit, but why is operator overloading not available for classes in Delphi?

我记得在一次运行，它说它会与某些东西相冲突，但我不记得了。据我所知，只有隐式运算符可能会导致一些问题，因为类存储在堆上，并且实际上是一个堆地址的副本（基本上是复制指针）。

I remember reading an answer once while on the run, and it said it would come in conflict with something, but I can't remember much. As far as I can tell, only the implicit operator may cause a bit of problems since classes are stored on the heap and assigning is actually a copy of the heap address (basically copying pointers).

推荐答案

关闭。这是因为对象是引用类型，并且内存是手动管理的。所以如果你说 myResult：= myObject1 + myObject2 + myObject3; ，你必须在那里创建一个中间对象，没有代码释放它，所以你获得内存泄漏。

Close. It's because objects are reference types and the memory is managed manually. So if you said myResult := myObject1 + myObject2 + myObject3;, you'd have to create an intermediate object somewhere in there, and there's no code to free it, so you get memory leaks.

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