routing_constraints.h

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// Copyright 2010-2025 Google LLC
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#ifndef ORTOOLS_CONSTRAINT_SOLVER_ROUTING_CONSTRAINTS_H_
#define ORTOOLS_CONSTRAINT_SOLVER_ROUTING_CONSTRAINTS_H_
 
#include <cstdint>
#include <functional>
#include <optional>
#include <vector>
 
#include "ortools/constraint_solver/constraint_solver.h"
#include "ortools/constraint_solver/routing.h"
 
namespace operations_research {
 
Constraint* MakeDifferentFromValues(Solver* solver, IntVar* var,
                                    std::vector<int64_t> values);
 
Constraint* MakeResourceConstraint(
    const RoutingModel::ResourceGroup* resource_group,
    const std::vector<IntVar*>* vehicle_resource_vars, RoutingModel* model);

Constraint* MakePathSpansAndTotalSlacks(const RoutingDimension* dimension,
                                        std::vector<IntVar*> spans,
                                        std::vector<IntVar*> total_slacks);
 
Constraint* MakeRouteConstraint(
    RoutingModel* model, std::vector<IntVar*> route_cost_vars,
    std::function<std::optional<int64_t>(const std::vector<int64_t>&)>
        route_evaluator);
 
Constraint* MakeGlobalVehicleBreaksConstraint(
    Solver* solver, const RoutingDimension* dimension);

Constraint* MakeNumActiveVehiclesCapacityConstraint(
    Solver* solver, std::vector<IntVar*> transit_vars,
    std::vector<IntVar*> active_vars, std::vector<IntVar*> vehicle_active_vars,
    std::vector<int64_t> vehicle_capacities, int max_active_vehicles,
    bool enforce_active_vehicles = false);
 
}  // namespace operations_research
 
#endif  // ORTOOLS_CONSTRAINT_SOLVER_ROUTING_CONSTRAINTS_H_