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fzn-gecode.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Guido Tack <tack@gecode.org>
5  *
6  * Copyright:
7  * Guido Tack, 2007
8  *
9  * This file is part of Gecode, the generic constraint
10  * development environment:
11  * http://www.gecode.org
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining
14  * a copy of this software and associated documentation files (the
15  * "Software"), to deal in the Software without restriction, including
16  * without limitation the rights to use, copy, modify, merge, publish,
17  * distribute, sublicense, and/or sell copies of the Software, and to
18  * permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be
22  * included in all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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29  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31  *
32  */
33 
34 #include <iostream>
35 #include <fstream>
36 #include <gecode/flatzinc.hh>
37 
38 using namespace std;
39 using namespace Gecode;
40 
41 int main(int argc, char** argv) {
42 
43  Support::Timer t_total;
44  t_total.start();
45  FlatZinc::FlatZincOptions opt("Gecode/FlatZinc");
46  opt.parse(argc, argv);
47 
48  if (argc!=2) {
49  cerr << "Usage: " << argv[0] << " [options] <file>" << endl;
50  cerr << " " << argv[0] << " -help for more information" << endl;
51  exit(EXIT_FAILURE);
52  }
53 
54  const char* filename = argv[1];
55  opt.name(filename);
56 
58  FlatZinc::FlatZincSpace* fg = NULL;
59  Rnd rnd(opt.seed());
60  try {
61  if (!strcmp(filename, "-")) {
62  fg = FlatZinc::parse(cin, p, std::cerr, NULL, rnd);
63  } else {
64  fg = FlatZinc::parse(filename, p, std::cerr, NULL, rnd);
65  }
66 
67  if (fg) {
68  fg->createBranchers(p, fg->solveAnnotations(), opt,
69  false, std::cerr);
70  fg->shrinkArrays(p);
71  if (opt.output()) {
72  std::ofstream os(opt.output());
73  if (!os.good()) {
74  std::cerr << "Could not open file " << opt.output() << " for output."
75  << std::endl;
76  exit(EXIT_FAILURE);
77  }
78  fg->run(os, p, opt, t_total);
79  os.close();
80  } else {
81  fg->run(std::cout, p, opt, t_total);
82  }
83  } else {
84  exit(EXIT_FAILURE);
85  }
86  delete fg;
87  } catch (FlatZinc::Error& e) {
88  std::cerr << "Error: " << e.toString() << std::endl;
89  return 1;
90  }
91 
92  return 0;
93 }
94 
95 // STATISTICS: flatzinc-any
void shrinkArrays(Printer &p)
Remove all variables not needed for output.
Definition: flatzinc.cpp:2107
const std::string & toString(void) const
Definition: flatzinc.hh:666
Options for running FlatZinc models
Definition: flatzinc.hh:226
GECODE_FLATZINC_EXPORT FlatZincSpace * parse(const std::string &fileName, Printer &p, std::ostream &err=std::cerr, FlatZincSpace *fzs=NULL, Rnd &rnd=defrnd)
Parse FlatZinc file fileName into fzs and return it.
Definition: flatzinc.cpp:52
void start(void)
Start timer.
Definition: timer.hpp:66
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232
Options opt
The options.
Definition: test.cpp:97
Output support class for FlatZinc interpreter.
Definition: flatzinc.hh:107
const char * name(void) const
Return name of script.
Definition: options.hpp:166
const char * output(void) const
Definition: flatzinc.hh:357
int main(int argc, char **argv)
Definition: fzn-gecode.cpp:41
void createBranchers(Printer &p, AST::Node *ann, FlatZincOptions &opt, bool ignoreUnknown, std::ostream &err=std::cerr)
Create branchers corresponding to the solve item annotations.
Definition: flatzinc.cpp:1037
Exception class for FlatZinc errors
Definition: flatzinc.hh:660
AST::Array * solveAnnotations(void) const
Return the solve item annotations.
Definition: flatzinc.cpp:1597
A space that can be initialized with a FlatZinc model.
Definition: flatzinc.hh:423
void run(std::ostream &out, const Printer &p, const FlatZincOptions &opt, Gecode::Support::Timer &t_total)
Run the search.
Definition: flatzinc.cpp:1963
Gecode toplevel namespace
Random number generator.
Definition: rnd.hpp:42
void parse(int &argc, char *argv[])
Definition: flatzinc.hh:330