c34026b101
note: done using ```sh git grep -l "2010-2024 Google" | xargs sed -i 's/2010-2024 Google/2010-2025 Google/' ```
42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
// Copyright 2010-2025 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef OR_TOOLS_SAT_CP_MODEL_EXPAND_H_
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#define OR_TOOLS_SAT_CP_MODEL_EXPAND_H_
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#include <stdint.h>
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#include "ortools/sat/cp_model.pb.h"
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#include "ortools/sat/presolve_context.h"
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namespace operations_research {
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namespace sat {
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// Expands a given CpModelProto by rewriting complex constraints into
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// simpler constraints.
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// This is different from PresolveCpModel() as there are no reduction or
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// simplification of the model. Furthermore, this expansion is mandatory.
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void ExpandCpModel(PresolveContext* context);
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// Linear constraint with a complex rhs need to be expanded at the end of the
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// presolve. We do that at the end, because the presolve is allowed to simplify
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// such constraints by updating the rhs. Also the extra variable we create are
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// only linked by a few constraints to the rest of the model and should not be
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// pre-solvable.
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void FinalExpansionForLinearConstraint(PresolveContext* context);
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} // namespace sat
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} // namespace operations_research
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#endif // OR_TOOLS_SAT_CP_MODEL_EXPAND_H_
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