Function testUserScale

check/TestUserScale.cpp:248–282

}

void testUserScale(Highs& h) {
  h.setOptionValue("user_objective_scale", 0);
  h.setOptionValue("user_bound_scale", 0);
  if (dev_run)
    printf("\n---------------\nWithout user scaling\n---------------\n");
  h.writeModel("");
  h.run();
  h.writeSolution("", 1);
  double unscaled_objective_value = h.getInfo().objective_function_value;
  if (dev_run)
    printf("\n---------------\nWith user scaling\n---------------\n");
  HighsInt suggested_objective_scale;
  HighsInt suggested_bound_scale;
  h.getObjectiveBoundScaling(suggested_objective_scale, suggested_bound_scale);
  if (dev_run)
    printf(
        "Highs::getObjectiveBoundScaling suggested cost / bound scale values "
        "of "
        "%d / %d\n",
        int(suggested_objective_scale), int(suggested_bound_scale));
  const bool has_suggested_scaling =
      suggested_objective_scale || suggested_bound_scale;
  if (!has_suggested_scaling) {
    suggested_objective_scale = 2;
    suggested_bound_scale = 1;
  }

  h.setOptionValue("user_objective_scale", suggested_objective_scale);
  h.setOptionValue("user_bound_scale", suggested_bound_scale);
  h.clearSolver();
  h.run();
  h.writeSolution("", 1);
  REQUIRE(doubleEqual0(unscaled_objective_value,
                       h.getInfo().objective_function_value));
}

void testLp(Highs& h, const double cost, const double col_lower,
            const double bound) {