Linked list Stack question

This is a discussion on Linked list Stack question within the C++ Programming forums, part of the General Programming Boards category; I'm working on a Printing Function for my stack, where I create a temporary stack to store the (popped) values ...

  1. #1
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    Linked list Stack question

    I'm working on a Printing Function for my stack, where I create a temporary stack to store the (popped) values of the user implemented stack. They get pushed onto the temp stack, then popped off the temp stack (to retain element order) and printed before the pop back to the original Stack.

    The Problem resides in calling a class member function for the temporary stack.
    I could just code out my pop & push again for my temp stack, but my instructer would yell at me.

  2. #2
    Skunkmeister Stoned_Coder's Avatar
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    why use a temporary stack. take a leaf out of the STL and use iterators. Add a member to your stack class, just a basic pointer will do nicely if your class is array based. use it to iterate upwards thru the stack printing as you go.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

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    The Assignment has a set header file, and the requirements of the assignment are there to make it a pain, so I'm stuck with the temp Linked list solution, I can hard code the temp stack but if there is a way to use my prebuilt functions on the temp stack my grade won't be affected negatively.

  4. #4
    Skunkmeister Stoned_Coder's Avatar
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    if your stack and tempstack are the same class you can use the same member funcs, you wont need to rewrite them.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

  5. #5
    Skunkmeister Stoned_Coder's Avatar
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    Another idea for you is if you cant change your class you can use a std::deque<TYPEOFSTACK> and push_front the popped off the stack value, then copy the deque to cout using the copy algorithm and ostream_iterators
    for instance if you have a stack of ints...
    Code:
    std::deque<int> cont;
    Stack thestack;
    // fill stack here
    while(!thestack.empty())
    {
       // fill deque with popped values
       cont.push_front(thestack.pop());
    }
    std::copy(cont.begin(),cont.end(),std::ostream_iterator<int>(std::cout," "));
    // now you would have to put the values in the deque back in your stack
    while(!cont.empty())
    {
       thestack.push(cont.front());
       cont.pop_front();
    }
    Last edited by Stoned_Coder; 09-23-2005 at 06:26 AM.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

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