Uninitialized member variables

src/io/HighsIO.h

@@ -45,14 +45,23 @@ struct HighsLogOptions {
   bool* output_flag;
   bool* log_to_console;
   HighsInt* log_dev_level;
-  void (*user_log_callback)(HighsLogType, const char*, void*) = nullptr;
-  void* user_log_callback_data = nullptr;
+  void (*user_log_callback)(HighsLogType, const char*, void*);
+  void* user_log_callback_data;
   std::function<void(int, const std::string&, const HighsCallbackDataOut*,
                      HighsCallbackDataIn*, void*)>
       user_callback;
-  void* user_callback_data = nullptr;
-  bool user_callback_active = false;
+  void* user_callback_data;
+  bool user_callback_active;
   void clear();
+  HighsLogOptions()
+      : log_stream(nullptr),
+        output_flag(nullptr),
+        log_to_console(nullptr),
+        log_dev_level(nullptr),
+        user_log_callback(nullptr),
+        user_log_callback_data(nullptr),
+        user_callback_data(nullptr),
+        user_callback_active(false){};
 };
 
 /**

src/lp_data/HighsOptions.h

@@ -424,6 +424,128 @@ struct HighsOptionsStruct {
   // Logging callback identifiers
   HighsLogOptions log_options;
   virtual ~HighsOptionsStruct() {}
+
+  HighsOptionsStruct()
+      : presolve(""),
+        solver(""),
+        parallel(""),
+        run_crossover(""),
+        time_limit(0.0),
+        solution_file(""),
+        write_model_file(""),
+        random_seed(0),
+        ranging(""),
+        infinite_cost(0.0),
+        infinite_bound(0.0),
+        small_matrix_value(0.0),
+        large_matrix_value(0.0),
+        primal_feasibility_tolerance(0.0),
+        dual_feasibility_tolerance(0.0),
+        ipm_optimality_tolerance(0.0),
+        objective_bound(0.0),
+        objective_target(0.0),
+        threads(0),
+        user_bound_scale(0),
+        user_cost_scale(0),
+        highs_debug_level(0),
+        highs_analysis_level(0),
+        simplex_strategy(0),
+        simplex_scale_strategy(0),
+        simplex_crash_strategy(0),
+        simplex_dual_edge_weight_strategy(0),
+        simplex_primal_edge_weight_strategy(0),
+        simplex_iteration_limit(0),
+        simplex_update_limit(0),
+        simplex_min_concurrency(0),
+        simplex_max_concurrency(0),
+        log_file(""),
+        write_model_to_file(false),
+        write_solution_to_file(false),
+        write_solution_style(0),
+        glpsol_cost_row_location(0),
+        output_flag(false),
+        log_to_console(false),
+        ipm_iteration_limit(0),
+        pdlp_native_termination(false),
+        pdlp_scaling(false),
+        pdlp_iteration_limit(0),
+        pdlp_e_restart_method(0),
+        pdlp_d_gap_tol(0.0),
+        qp_iteration_limit(0),
+        qp_nullspace_limit(0),
+        log_dev_level(0),
+        log_githash(false),
+        solve_relaxation(false),
+        allow_unbounded_or_infeasible(false),
+        use_implied_bounds_from_presolve(false),
+        lp_presolve_requires_basis_postsolve(false),
+        mps_parser_type_free(false),
+        keep_n_rows(0),
+        cost_scale_factor(0),
+        allowed_matrix_scale_factor(0),
+        allowed_cost_scale_factor(0),
+        ipx_dualize_strategy(0),
+        simplex_dualize_strategy(0),
+        simplex_permute_strategy(0),
+        max_dual_simplex_cleanup_level(0),
+        max_dual_simplex_phase1_cleanup_level(0),
+        simplex_price_strategy(0),
+        simplex_unscaled_solution_strategy(0),
+        presolve_reduction_limit(0),
+        restart_presolve_reduction_limit(0),
+        presolve_substitution_maxfillin(0),
+        presolve_rule_off(0),
+        presolve_rule_logging(false),
+        simplex_initial_condition_check(false),
+        no_unnecessary_rebuild_refactor(false),
+        simplex_initial_condition_tolerance(0.0),
+        rebuild_refactor_solution_error_tolerance(0.0),
+        dual_steepest_edge_weight_error_tolerance(0.0),
+        dual_steepest_edge_weight_log_error_threshold(0.0),
+        dual_simplex_cost_perturbation_multiplier(0.0),
+        primal_simplex_bound_perturbation_multiplier(0.0),
+        dual_simplex_pivot_growth_tolerance(0.0),
+        presolve_pivot_threshold(0.0),
+        factor_pivot_threshold(0.0),
+        factor_pivot_tolerance(0.0),
+        start_crossover_tolerance(0.0),
+        less_infeasible_DSE_check(false),
+        less_infeasible_DSE_choose_row(false),
+        use_original_HFactor_logic(false),
+        run_centring(false),
+        max_centring_steps(0),
+        centring_ratio_tolerance(0.0),
+        icrash(false),
+        icrash_dualize(false),
+        icrash_strategy(""),
+        icrash_starting_weight(0.0),
+        icrash_iterations(0),
+        icrash_approx_iter(0),
+        icrash_exact(false),
+        icrash_breakpoints(false),
+        mip_detect_symmetry(false),
+        mip_allow_restart(false),
+        mip_max_nodes(0),
+        mip_max_stall_nodes(0),
+        mip_max_leaves(0),
+        mip_max_improving_sols(0),
+        mip_lp_age_limit(0),
+        mip_pool_age_limit(0),
+        mip_pool_soft_limit(0),
+        mip_pscost_minreliable(0),
+        mip_min_cliquetable_entries_for_parallelism(0),
+        mip_report_level(0),
+        mip_feasibility_tolerance(0.0),
+        mip_rel_gap(0.0),
+        mip_abs_gap(0.0),
+        mip_heuristic_effort(0.0),
+        mip_min_logging_interval(0.0),
+#ifdef HIGHS_DEBUGSOL
+        mip_debug_solution_file(""),
+#endif
+        mip_improving_solution_save(false),
+        mip_improving_solution_report_sparse(false),
+        mip_improving_solution_file(""){};
 };
 
 // For now, but later change so HiGHS properties are string based so that new

src/mip/HighsDomain.h

@@ -358,6 +358,7 @@ class HighsDomain {
         conflictPoolPropagation(other.conflictPoolPropagation),
         infeasible_(other.infeasible_),
         infeasible_reason(other.infeasible_reason),
+        infeasible_pos(other.infeasible_pos),
         colLowerPos_(other.colLowerPos_),
         colUpperPos_(other.colUpperPos_),
         branchPos_(other.branchPos_),

src/mip/HighsSearch.h

@@ -96,6 +96,7 @@ class HighsSearch {
              std::shared_ptr<const StabilizerOrbits> stabilizerOrbits = nullptr)
         : lower_bound(parentlb),
           estimate(parentestimate),
+          branching_point(0.0),
           lp_objective(-kHighsInf),
           other_child_lb(parentlb),
           nodeBasis(std::move(parentBasis)),

src/presolve/ICrash.h

@@ -85,7 +85,13 @@ struct Quadratic {
   double mu;
   std::vector<double> lambda;
 
-  Quadratic(HighsLp lp_, ICrashOptions options_) : lp(lp_), options(options_) {}
+  Quadratic(HighsLp lp_, ICrashOptions options_)
+      : lp(lp_),
+        options(options_),
+        lp_objective(0.0),
+        quadratic_objective(0.0),
+        residual_norm_2(0.0),
+        mu(0.0) {}
 };
 
 // Functions: Call.

src/simplex/HEkk.h

@@ -25,7 +25,41 @@ class HighsLpSolverObject;
 
 class HEkk {
  public:
-  HEkk() {}
+  HEkk()
+      : callback_(nullptr),
+        options_(nullptr),
+        timer_(nullptr),
+        lp_name_(""),
+        model_status_(HighsModelStatus::kNotset),
+        simplex_in_scaled_space_(false),
+        cost_scale_(1.0),
+        cost_perturbation_base_(0.0),
+        cost_perturbation_max_abs_cost_(0.0),
+        iteration_count_(0),
+        dual_simplex_cleanup_level_(0),
+        dual_simplex_phase1_cleanup_level_(0),
+        previous_iteration_cycling_detected(-kHighsIInf),
+        solve_bailout_(false),
+        called_return_from_solve_(false),
+        exit_algorithm_(SimplexAlgorithm::kNone),
+        return_primal_solution_status_(0),
+        return_dual_solution_status_(0),
+        original_num_col_(0),
+        original_num_row_(0),
+        original_num_nz_(0),
+        original_offset_(0.0),
+        edge_weight_error_(0.0),
+        build_synthetic_tick_(0.0),
+        total_synthetic_tick_(0.0),
+        debug_solve_call_num_(0),
+        debug_basis_id_(0),
+        time_report_(false),
+        debug_initial_build_synthetic_tick_(0),
+        debug_solve_report_(false),
+        debug_iteration_report_(false),
+        debug_basis_report_(false),
+        debug_dual_feasible(false),
+        debug_max_relative_dual_steepest_edge_weight_error(0) {}
   /**
    * @brief Interface to simplex solvers
    */
@@ -155,14 +189,14 @@ class HEkk {
   HSimplexNla simplex_nla_;
   HotStart hot_start_;
 
-  double cost_scale_ = 1;
+  double cost_scale_;
   double cost_perturbation_base_;
   double cost_perturbation_max_abs_cost_;
-  HighsInt iteration_count_ = 0;
-  HighsInt dual_simplex_cleanup_level_ = 0;
-  HighsInt dual_simplex_phase1_cleanup_level_ = 0;
+  HighsInt iteration_count_;
+  HighsInt dual_simplex_cleanup_level_;
+  HighsInt dual_simplex_phase1_cleanup_level_;
 
-  HighsInt previous_iteration_cycling_detected = -kHighsIInf;
+  HighsInt previous_iteration_cycling_detected;
 
   bool solve_bailout_;
   bool called_return_from_solve_;
@@ -197,17 +231,17 @@ class HEkk {
 
   double edge_weight_error_;
 
-  double build_synthetic_tick_ = 0;
-  double total_synthetic_tick_ = 0;
-  HighsInt debug_solve_call_num_ = 0;
-  HighsInt debug_basis_id_ = 0;
-  bool time_report_ = false;
-  HighsInt debug_initial_build_synthetic_tick_ = 0;
-  bool debug_solve_report_ = false;
-  bool debug_iteration_report_ = false;
-  bool debug_basis_report_ = false;
-  bool debug_dual_feasible = false;
-  double debug_max_relative_dual_steepest_edge_weight_error = 0;
+  double build_synthetic_tick_;
+  double total_synthetic_tick_;
+  HighsInt debug_solve_call_num_;
+  HighsInt debug_basis_id_;
+  bool time_report_;
+  HighsInt debug_initial_build_synthetic_tick_;
+  bool debug_solve_report_;
+  bool debug_iteration_report_;
+  bool debug_basis_report_;
+  bool debug_dual_feasible;
+  double debug_max_relative_dual_steepest_edge_weight_error;
 
   std::vector<HighsSimplexBadBasisChangeRecord> bad_basis_change_;