Function iterate

check/TestFactor.cpp:193–215

}

bool iterate(const HighsInt variable_out, const HighsInt variable_in) {
  const HighsInt row_out = rowOut(variable_out);
  if (row_out < 0) return false;
  row_ep.clear();
  row_ep.count = 1;
  row_ep.index[0] = row_out;
  row_ep.array[row_out] = 1;
  row_ep.packFlag = true;
  factor.btranCall(row_ep, 1);

  col_aq.clear();
  col_aq.packFlag = true;
  lp.a_matrix_.collectAj(col_aq, variable_in, 1);
  factor.ftranCall(col_aq, 1);

  basic_set[row_out] = variable_in;
  HighsInt rebuild_reason = 0;
  HighsInt lc_row_out = row_out;
  factor.update(&col_aq, &row_ep, &lc_row_out, &rebuild_reason);
  if (rebuild_reason) return false;

  return testSolve();
}

bool testSolve() {
  const bool test_all = true;