OR-Tools  8.2
mps_reader.h
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1// Copyright 2010-2018 Google LLC
2// Licensed under the Apache License, Version 2.0 (the "License");
3// you may not use this file except in compliance with the License.
4// You may obtain a copy of the License at
5//
6// http://www.apache.org/licenses/LICENSE-2.0
7//
8// Unless required by applicable law or agreed to in writing, software
9// distributed under the License is distributed on an "AS IS" BASIS,
10// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11// See the License for the specific language governing permissions and
12// limitations under the License.
13
14// A reader for files in the MPS format.
15// see http://lpsolve.sourceforge.net/5.5/mps-format.htm
16// and http://www.ici.ro/camo/language/ml11.htm.
17//
18// MPS stands for Mathematical Programming System.
19//
20// The format was invented by IBM in the 60's, and has become the de facto
21// standard. We developed this reader to be able to read benchmark data files.
22// Using the MPS file format for new models is discouraged.
23
24#ifndef OR_TOOLS_LP_DATA_MPS_READER_H_
25#define OR_TOOLS_LP_DATA_MPS_READER_H_
26
27#include <limits>
28#include <memory>
29#include <string>
30#include <vector>
31
32#include "absl/container/flat_hash_map.h"
33#include "absl/container/flat_hash_set.h"
34#include "absl/container/node_hash_set.h"
35#include "absl/flags/declare.h"
36#include "absl/status/status.h"
37#include "absl/status/statusor.h"
38#include "absl/strings/numbers.h"
40#include "ortools/base/hash.h"
43#include "ortools/base/macros.h" // for DISALLOW_COPY_AND_ASSIGN, NULL
47#include "ortools/linear_solver/linear_solver.pb.h"
50
51namespace operations_research {
52namespace glop {
53
54// Reads a linear program in the mps format.
55//
56// All Parse() methods clear the previously parsed instance and store the result
57// in the given Data class.
58
59class MPSReader {
60 public:
62
63 // Parses instance from a file.
64 absl::Status ParseFile(const std::string& file_name, LinearProgram* data,
65 Form form = AUTO_DETECT);
66
67 absl::Status ParseFile(const std::string& file_name, MPModelProto* data,
68 Form form = AUTO_DETECT);
69};
70
71} // namespace glop
72} // namespace operations_research
73
74#endif // OR_TOOLS_LP_DATA_MPS_READER_H_
absl::Status ParseFile(const std::string &file_name, LinearProgram *data, Form form=AUTO_DETECT)
Definition: mps_reader.cc:1038
The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...