/// as added, or call diff_i for further processing.
void diffPart(DocRangePair const & rp);
/// as added, or call diff_i for further processing.
void diffPart(DocRangePair const & rp);
// Where do we take the step from ?
int const kk = vertical_step ? k + 1 : k - 1;
DocPair p(op[kk], np[kk]);
// Where do we take the step from ?
int const kk = vertical_step ? k + 1 : k - 1;
DocPair p(op[kk], np[kk]);
for (pit_type p = 0; p < (pit_type)dest_pars_->size(); ++p) {
(*dest_pars_)[p].setBuffer(const_cast<Buffer &>(*dest_buf));
for (pit_type p = 0; p < (pit_type)dest_pars_->size(); ++p) {
(*dest_pars_)[p].setBuffer(const_cast<Buffer &>(*dest_buf));