I feel stupid, but I need help with QPointF dynamic array ....

After surf on the web I have seen some tips on dynamic arrays.
I want to have a private dinamyc QPointF array.

I have to declare it so : ?
QpointF **points_f_array;

and later :
points_f_array = new QpointF *[number_of_points_needed] //

I confuse with :
QpointF *points_f_array[];

By last.... I have to delete every point and by last delete the array itself ?
Is there any easy way to do this ? Maybe a Vector can be easier ?

I feel stupid doing this question, but I can't to write the right code .
Thanks

You should use QVector -- things really are easier with proper classes.

But when you have an array of points, perhaps you have a polygon. Therefore, see QPolygonF, which really is a QVector<QPointF>: http://doc.qt.nokia.com/latest/qpolygonf.html. At least it will give you ideas about how to handle your points.