Files
ortools-clone/ortools/constraint_solver/routing_parameters_utils.cc
Corentin Le Molgat a7f49a2585 backport from main
* rename swig files .i in .swig
* update constraint_solver and routing
* backport math_opt changes
* move dynamic loading to ortools/third_party_solvers
2025-07-23 23:12:34 +02:00

61 lines
2.3 KiB
C++

// 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.
#include "ortools/constraint_solver/routing_parameters_utils.h"
#include <vector>
#include "absl/types/span.h"
#include "ortools/util/optional_boolean.pb.h"
namespace operations_research {
std::vector<LocalCheapestInsertionParameters::InsertionSortingProperty>
GetLocalCheapestInsertionSortingProperties(
absl::Span<const int> lci_insertion_sorting_properties) {
std::vector<LocalCheapestInsertionParameters::InsertionSortingProperty>
sorting_properties;
for (const int property : lci_insertion_sorting_properties) {
sorting_properties.push_back(
static_cast<LocalCheapestInsertionParameters::InsertionSortingProperty>(
property));
}
// For historical reasons if no insertion order is specified, we fallback to
// selecting nodes with the least number of allowed vehicles first, then the
// ones with the highest penalty.
if (sorting_properties.empty()) {
sorting_properties.push_back(
LocalCheapestInsertionParameters::SORTING_PROPERTY_ALLOWED_VEHICLES);
sorting_properties.push_back(
LocalCheapestInsertionParameters::SORTING_PROPERTY_PENALTY);
}
return sorting_properties;
}
void DisableAllLocalSearchOperators(
RoutingSearchParameters::LocalSearchNeighborhoodOperators* operators) {
const auto* reflection = operators->GetReflection();
const auto* descriptor = operators->GetDescriptor();
const auto* false_enum =
OptionalBoolean_descriptor()->FindValueByName("BOOL_FALSE");
for (int /*this is NOT the field's tag number*/ field_index = 0;
field_index < descriptor->field_count(); ++field_index) {
const auto* field = descriptor->field(field_index);
reflection->SetEnum(operators, field, false_enum);
}
}
} // namespace operations_research