A basic C++ question about Actions

I see how works the menu system at tutorial 'recent files'.

( This is a piece of code)
at .h

Code:

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enum { MaxRecentFiles = 5 };
    QAction *recentFileActs[MaxRecentFiles];

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at .cpp

Code:

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recentFilesActs[0]= new QAction("a_string", this);

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There is not problem in having recentFileActs with 5 'reserved' QActions
But, if I didnt want to have 'reserved' space and want to create at .cpp ?
It is a basic c++ question but I dont know how to do it. It is related with 'How can I create an array of objects that have a constructor parameter'.

At h.file I want : QAction *recentFileActs[];
and at .cpp : ???? code for variable and exact value
I can't write recentFileActs = new QActions(20);


1.- Have I to create a QAction by pointer and later to pass it to recentFileActs[0] ?
2.- In that case must I to keep in mind that I have to delete the objects created?

Thanks

Use QVector instead of a straight array

With the original tutorial and the:

Code:

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QVector<QAction *> recentFileActs;  // if you want a particular size  set at run time.  Look at QVector::resize()
QList<QAction*> recentFileActs;  // if you want an open ended list (not likely for an MRU list)

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suggestions you need to make sure the QActions are deleted. Usually this is by giving each QAction a QObject parent when you construct them (the "this" in your second code snippet).