In QT, is there a dynamic array for double, float, int... ect .. ie QDoubleArray?

In QT, is there a dynamic array for double, float, int... ect .. ie
QDoubleArray?

In QT is there a dynmaic storage for values?
ie:
QDoubleArray x;
x.append(4.6);
x.append(4.8);
x.append(5.2);
//x.count() = 3