[solved] variable needs curly braces ... any idea?

[SherifOmran]

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QPointer <QGraphicsScene> viewScene[2] = new QGraphicsScene();
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When i compile it into windows i get, viewscene array needs curly braces. However, it works fine in MAC ..

the same also in this line
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QPointer <QGraphicsTextItem> io[8] = new QGraphicsTextItem;
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Any ideas?

thanks

[JKSH]

Hi,

This is an array of 2 pointers:
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QPointer <QGraphicsScene> viewScene[2]
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This returns one pointer:
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new QGraphicsScene();
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This is an array of 8 pointers:
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QPointer <QGraphicsTextItem> io[8]
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This returns one pointer:
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new QGraphicsTextItem;
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It doesn't work fine on the Mac -- your Mac compiler just didn't notice the mistake. You can't assign one pointer to an array of pointers.

[SherifOmran]

thank you for your reply

this means, i should correct it this way, please correct me if i mistake
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QPointer <QGraphicsScene> viewScene[2] = new QGraphicsScene2;
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[SherifOmran]

solved

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QPointer <QGraphicsScene> viewScene[2] = {new QGraphicsScene()};
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QPointer <QGraphicsTextItem> io[8] = { new QGraphicsTextItem };
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[mmoll]

This is most likely not what you want. It creates an array of 2 (8) QPointers, of which only the first is initialized to point to a new object. The others are zero-initialized.

As these are rather elementary C++ syntax questions, I think you should try to find a good book on C++ first.