Thread: undefined reference to `

  1. #1
    Registered User
    Join Date
    Jan 2009

    destructors not executed

    I was wondering why the following classes' destructors are not executed?
    class A{
        int *i;
    A(){    i=new int[2];    };
    ~A(){    delete[] i;    };
    class B: public A{
        int *j;
    B(){    j=new int[2];};
    ~B(){    delete [] j;};
    int main()
        A* a = new B();
         return 0;
    Thank you!
    Last edited by lehe; 03-26-2009 at 05:41 PM.

  2. #2
    Registered User
    Join Date
    Jan 2009
    Ok, I know the answer. I forgot to delete a.
    Sorry for spamming here.
    Is it possible to delete one's own posts in this forum?

  3. #3
    Hurry Slowly vart's Avatar
    Join Date
    Oct 2006
    Rishon LeZion, Israel
    this is C++ and should be on another forum
    All problems in computer science can be solved by another level of indirection,
    except for the problem of too many layers of indirection.
    David J. Wheeler

  4. #4
    Join Date
    Oct 2007
    Inside my computer
    You shouldn't delete your own posts (unless perhaps you double post in error), because others can see your benefit and profit from the wisdom you gained by solving the problem.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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