QPDF_Array::eraseItem(int at)
{
    // Call getItem for bounds checking
    (void) getItem(at);
    this->items.erase(this->items.begin() + at);
}
QPDF_Array::eraseItem(int at)
{
     
    (void) getItem(at);
    this->items.erase(this->items.begin() + at);
}