queue / stack

This is a discussion on queue / stack within the C++ Programming forums, part of the General Programming Boards category; Hello I am unclear about queue and stacks, here are my questions: 1) I am using the compiler CodeWarroir: and ...

  1. #1
    smd
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    queue / stack

    Hello I am unclear about queue and stacks, here are my questions:

    1) I am using the compiler CodeWarroir: and wanted to use a queue, I have used the declaration: queue <int> q and of course included the queue library, I keep getting an error that it doesn't recognize "queue", is my declaraion of the queue wrong??

    2) also...I am confused on what is the difference between a stack and a queue, I stack I understand is like when you stacksome item, and then first one pushed is the one at the bottom...and how do you declare a stack??

    thanks for the help!

  2. #2
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    Make sure you have the correct declarations.

    -----
    #include <stack>
    #include <queue>

    // instantiate a stack container of integers

    std::stack<int> myIntStack;
    myIntStack.push(1);
    ...


    // instantiate a queue container of integers

    std::quaue<int> myIntQueue;
    myIntQueue.push(1);
    -----

    stack and queue are opposite. A stack is last-in-first-out. Imagine a stack of dishes. A queue is first-in-first-out. Imagine waiting in line.

    Kuphryn

  3. #3
    smd
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    thanks ..it worked..I had done a declaration as queue<int> q; initially in UNIX, not std::queue <int> q. I wasn wondering why my initially declaration as queue<int> q did not work with my new compiler codewarrior???

    thanks for any explanation!

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