determine the number of elements in this sequence . concode_field_sep double[] data concode_elem_sep int manyItems concode_elem_sep int currentIndex concode_field_sep DoubleArraySeq catenation concode_elem_sep void trimToSize concode_elem_sep void start concode_elem_sep void advance concode_elem_sep void addBefore concode_elem_sep void addAfter concode_elem_sep double isCurrent concode_elem_sep void addAll concode_elem_sep DoubleArraySeq clone concode_elem_sep void removeCurrent concode_elem_sep void ensureCapacity concode_elem_sep double getCurrent concode_elem_sep int getCapacity
int function ( ) { }