Lexicographic comparison of two index strings.
hexify_compare_indices(idx1, idx2)Integer: -1 if idx1 < idx2, 0 if equal, 1 if idx1 > idx2
First index string
Second index string
Other hierarchical index:
hexify_cell_to_index(),
hexify_default_index_type(),
hexify_get_children(),
hexify_get_parent(),
hexify_get_resolution(),
hexify_index_to_cell(),
hexify_index_to_lonlat(),
hexify_is_valid_index_type(),
hexify_lonlat_to_index(),
hexify_z7_canonical()