Identifies the starting ordinal, numbered from 1,
for an array element of index _array_structure_list_section.index
in the section.
The value defaults to 1. For the given index, the elements in
the section are of indices:
_array_structure_list_section.start,
_array_structure_list_section.start
+ _array_structure_list_section.stride,
_array_structure_list_section.start
+ 2*_array_structure_list_section.stride,
...
stopping either when the indices leave the limits of the indices
of that dimension or
[min(_array_structure_list_section.start,
_array_structure_list_section.end ),
max(_array_structure_list_section.start,
_array_structure_list_section.end )].
The ordering of these elements is determined by the overall
ordering of _array_structure_list_section.array_id and not by
the ordering implied by the stride.