dynamic object initialisation??

This is a discussion on dynamic object initialisation?? within the C++ Programming forums, part of the General Programming Boards category; Hi all, just a general question about c++.. I am new to c++ programming and need to create instances of ...

  1. #1
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    Jul 2002
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    6

    dynamic object initialisation??

    Hi all,
    just a general question about c++..
    I am new to c++ programming and need to create instances of objects at runtime. However, the number of instances to be initialised varies each time the exe is run, and is dependant on variables passed to the exe. pretty much any number of instances (from say 1 to 30) could be required each time.

    As far as i am aware, i cannot declare instances "on the fly", they must be fixed for each time the exe runs.

    I am fairly sure there must be techniques that can be employed to solve this type of problem, since i imagine it is quite a common one. But because of my lack of experience in c++ i am not sure which direction to take.

    any advice on this would be gratefully recieved.

    Bob

  2. #2
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    Lightbulb Not hard at all

    Code:
    class CBob {
      bool bBobIsCool;
    public:
      CBob() : bBobIsCool(false) { }
      bool MakeMeACoolGuy() { bBobIsCool = true; }
    };
    
    //...
    
    int nNumObjects = atoi (argv[1]);
    
    CBob *pBobbers = new CBob[nNumObjects];
    
    for (int i=0;i<nNumObjects;++i)
      pBobbers[i]->MakeMeACoolGuy();
    
    delete [] pBobbers;
    There ya go

  3. #3
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    Jul 2002
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    6
    splendid

    thanks.


    bob

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