sorting with pointer of pointers to array

This is a discussion on sorting with pointer of pointers to array within the C++ Programming forums, part of the General Programming Boards category; pictures are word a thousand words, so here is what i need to do... http://i153.photobucket.com/albums/.../untitled-3.jpg i got a dynamic part ...

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    sorting with pointer of pointers to array

    pictures are word a thousand words, so here is what i need to do...
    http://i153.photobucket.com/albums/.../untitled-3.jpg
    i got a dynamic part of D done, (kinda easy, but little crazy with dynamic delete/add :P) then i try and point the pointer of pointers to D... this is where i get confused. i make a pointer of pointer
    **P and **Q
    i make the pointer array of D, then make the pointer point to an array of the size of D
    *P = new int[DSize];
    *Q = new int[DSize];
    now i get lost...
    i want to make the *P to make the space for the size D, then i want those pointers, **P, to point to the locations of D, but i can figure it out... i can do it with a single pointer *P, but as soon as i do it with a double pointer P, it wont let me do anything with the dynamic array... i even tried casting it as (int *), which works, but it doesn't change a **** thing. any hints?
    here is my pathetic attempt to make the make the pointer go to D in my code...
    *P = D;
    *Q = D;

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    Cat without Hat CornedBee's Avatar
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    Image link is corrupted.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
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    Unregistered User Yarin's Avatar
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    Algorithm Dissector iMalc's Avatar
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    Quote Originally Posted by Yarin View Post
    Um, goodbye duck?
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    Quote Originally Posted by Yarin View Post
    wow... i am going to cry. */

    meow!!!
    its not a duck! :P

    http://i153.photobucket.com/albums/s...untitled-3.jpg

    why it didn't work i dont know... maybe this will, its the same link...

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    Just Lurking Dave_Sinkula's Avatar
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    Don't shoot the duck, man!

    This sounded similar.
    7. It is easier to write an incorrect program than understand a correct one.
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  7. #7
    Algorithm Dissector iMalc's Avatar
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    Image link working now!
    Code:
    *P = new int[DSize];
    *Q = new int[DSize];
    This is wrong already. you shouldn't be trying to create an array of new ints. You need to create a new array of int pointers new (int*)s. You can't assign to *P or *Q until P and Q have been asigned to either. It sounds like you have their declarations correct though.
    Last edited by iMalc; 10-01-2007 at 11:28 PM.
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