1 /* Poly_Gen_Relation class implementation (non-inline functions).
2 Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
3 Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
4
5 This file is part of the Parma Polyhedra Library (PPL).
6
7 The PPL is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 The PPL is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
20
21 For the most up-to-date information see the Parma Polyhedra Library
22 site: http://bugseng.com/products/ppl/ . */
23
24 #include "ppl-config.h"
25 #include "Poly_Gen_Relation_defs.hh"
26 #include "assertions.hh"
27 #include <iostream>
28 #include <string>
29
30 namespace PPL = Parma_Polyhedra_Library;
31
32 void
ascii_dump(std::ostream & s) const33 PPL::Poly_Gen_Relation::ascii_dump(std::ostream& s) const {
34 flags_t f = flags;
35 if (f == NOTHING) {
36 s << "NOTHING";
37 return;
38 }
39
40 while (true) {
41 if (implies(f, SUBSUMES)) {
42 s << "SUBSUMES";
43 f &= ~SUBSUMES;
44 }
45 if (f != NOTHING) {
46 s << " & ";
47 }
48 else {
49 break;
50 }
51 }
52 }
53
54 PPL_OUTPUT_DEFINITIONS(Poly_Gen_Relation)
55
56 /*! \relates Parma_Polyhedra_Library::Poly_Gen_Relation */
57 std::ostream&
58 PPL::IO_Operators::operator<<(std::ostream& s, const Poly_Gen_Relation& r) {
59 r.ascii_dump(s);
60 return s;
61 }
62
63 bool
OK() const64 PPL::Poly_Gen_Relation::OK() const {
65 return true;
66 }
67