Trying to re-size the shape matrix dynamically. This is part of a drawing program where _capacity is the number of shapes drawn on a frame.

Get the error in new Shape about _capacity saying expression needs to have a constant value.

void ShapeStore::Grow(int minimumCapacity)
{   
_capacity = max (minimumCapacity, 2 * _capacity);
if (_capacity)
    {

    Shape ***newData = new Shape[_frames][_capacity];   //figure out this 
    int i;

    for (int k = 0; k < _frames; k++)
        for (i=0;i<_count;i++)
            newData[k][i] = _data[k][i];

    delete [] _data;
    _data = newData;
    }  //*/
}