C++, array of objects without

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渐次进展 2020-12-08 07:34

I want to create in C++ an array of Objects without using STL.

How can I do this?

How could I create array of Object2, which has no argumentless constructor

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  •  臣服心动
    2020-12-08 08:09

    If the type in question has an no arguments constructor, use new[]:

    Object2* newArray = new Object2[numberOfObjects];
    

    don't forget to call delete[] when you no longer need the array:

    delete[] newArray;
    

    If it doesn't have such a constructor use operator new to allocate memory, then call constructors in-place:

    //do for each object
    ::new( addressOfObject ) Object2( parameters );
    

    Again, don't forget to deallocate the array when you no longer need it.

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