是否允许删除？ [英] Is delete this allowed?

问题描述

是否允许删除此; 如果delete语句是将在该类的实例上执行的最后一个语句？当然，我确信 this -pointer代表的对象是 new 。 >

我在想这样的东西：

  void SomeModule :: doStuff （）
 {
 //在控制器中，SomeModule的this对象是当前模块
 //现在，如果我想切换到一个新的模块， 
 
 controller-> setWorkingModule（new OtherModule（））; 
 
 //因为新的OtherModule对象将带头，
 //我想摆脱这个SomeModule对象：
 
删除此; 
} 
  

我可以这样做吗？

解决方案

C ++ FAQ Lite有一个专门用于此

的条目

• https://isocpp.org/wiki/faq/freestore-mgmt#delete-this

我认为这个报价很好地归结起来了。

因为你很小心，对象可以自杀（删除这个）。

Is it allowed to delete this; if the delete-statement is the last statement that will be executed on that instance of the class? Of course I'm sure that the object represented by the this-pointer is newly-created.

I'm thinking about something like this:

void SomeModule::doStuff()
{
    // in the controller, "this" object of SomeModule is the "current module"
    // now, if I want to switch over to a new Module, eg:

    controller->setWorkingModule(new OtherModule());

    // since the new "OtherModule" object will take the lead, 
    // I want to get rid of this "SomeModule" object:

    delete this;
}

Can I do this?

解决方案

The C++ FAQ Lite has a entry specifically for this

• https://isocpp.org/wiki/faq/freestore-mgmt#delete-this

I think this quote sums it up nicely

As long as you're careful, it's OK for an object to commit suicide (delete this).

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