57 lines
2.2 KiB
C++
57 lines
2.2 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.
|
|
|
|
#ifndef PDLP_QUADRATIC_PROGRAM_IO_H_
|
|
#define PDLP_QUADRATIC_PROGRAM_IO_H_
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "absl/container/flat_hash_map.h"
|
|
#include "absl/status/status.h"
|
|
#include "absl/status/statusor.h"
|
|
#include "ortools/pdlp/quadratic_program.h"
|
|
|
|
namespace operations_research::pdlp {
|
|
|
|
// Reads a quadratic program, determining the type based on the filename's
|
|
// suffix:
|
|
// *.mps, *.mps.gz, *.mps.bz2 -> `ReadMpsLinearProgramOrDie`
|
|
// *.pb, *.textproto, *.json, *.json.gz -> `ReadMPModelProtoFileOrDie`
|
|
// otherwise CHECK-fails.
|
|
QuadraticProgram ReadQuadraticProgramOrDie(const std::string& filename,
|
|
bool include_names = false);
|
|
|
|
QuadraticProgram ReadMpsLinearProgramOrDie(const std::string& lp_file,
|
|
bool include_names = false);
|
|
|
|
absl::StatusOr<QuadraticProgram> ReadMpsLinearProgram(
|
|
const std::string& lp_file, bool include_names = false);
|
|
|
|
// The input may be `MPModelProto` in text format, binary format, or JSON,
|
|
// possibly gzipped.
|
|
QuadraticProgram ReadMPModelProtoFileOrDie(
|
|
const std::string& mpmodel_proto_file, bool include_names = false);
|
|
|
|
// NOTE: This will fail if `linear_program` is actually a quadratic program
|
|
// (that is, has a non-empty quadratic objective term).
|
|
absl::Status WriteLinearProgramToMps(const QuadraticProgram& linear_program,
|
|
const std::string& mps_file);
|
|
absl::Status WriteQuadraticProgramToMPModelProto(
|
|
const QuadraticProgram& quadratic_program,
|
|
const std::string& mpmodel_proto_file);
|
|
|
|
} // namespace operations_research::pdlp
|
|
#endif // PDLP_QUADRATIC_PROGRAM_IO_H_
|