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Thread: Standard C++98 Banking System example with OOPS

  1. #16
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    Re: Standard C++98 Banking System example with OOPS

    @2kaud

    Thank you for answer i changed *i to i->second but now it shows me second issue which you told.
    Kindly tell me how i can made this code polymorphic?
    I want to check whether stored object is Saving class object or Current class object?

  2. #17
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
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    Re: Standard C++98 Banking System example with OOPS

    Kindly tell me how i can made this code polymorphic?
    Have you read about/understand Polymorphic classes and how they are implemented using virtual class functions?
    See http://www.learncpp.com/cpp-tutorial...ual-functions/
    Last edited by 2kaud; January 20th, 2016 at 08:03 AM.
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2019 (16.2.2)

  3. #18
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
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    Re: Standard C++98 Banking System example with OOPS

    I've had a quick look at some of the other code and there are big problems. eg
    Code:
    Saving sb;
         int no = sb.create();
    ....
         data[no] = &sb;
    is a big no-no as sb only exists during the lifetime of the block so its address can't be used outside! To do something like this you need to create sb dynamically using new (shared_ptr?) and then delete the memory when not needed.
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2019 (16.2.2)

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