To GOTO or not to GOTO? [closed]

by

I am not sure what do you mean by clean up code but in C++ there is a concept called “resource acquisition is initialization” and it should be the responsibility of your destructors to clean up stuff.

(Note that in C# and Java, this is usually solved by try/finally)

For more info check out this page:
http://www.research.att.com/~bs/bs_faq2.html#finally

EDIT: Let me clear this up a little bit.

Consider the following code:

void MyMethod()
{
    MyClass *myInstance = new MyClass("myParameter");
    /* Your code here */
    delete myInstance;
}

The problem: What happens if you have multiple exits from the function? You have to keep track of each exit and delete your objects at all possible exits! Otherwise, you will have memory leaks and zombie resources, right?

The solution: Use object references instead, as they get cleaned up automatically when the control leaves the scope.

void MyMethod()
{
    MyClass myInstance("myParameter");
    /* Your code here */
    /* You don't need delete - myInstance will be destructed and deleted
     * automatically on function exit */
}

Oh yes, and use std::unique_ptr or something similar because the example above as it is is obviously imperfect.

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