1 |
|
/****************************************************************************** |
2 |
|
* Top contributors (to current version): |
3 |
|
* Gereon Kremer |
4 |
|
* |
5 |
|
* This file is part of the cvc5 project. |
6 |
|
* |
7 |
|
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
8 |
|
* in the top-level source directory and their institutional affiliations. |
9 |
|
* All rights reserved. See the file COPYING in the top-level source |
10 |
|
* directory for licensing information. |
11 |
|
* **************************************************************************** |
12 |
|
* |
13 |
|
* Implements a container for CAD constraints. |
14 |
|
*/ |
15 |
|
|
16 |
|
#include "cvc5_private.h" |
17 |
|
|
18 |
|
#ifndef CVC5__THEORY__ARITH__NL__CAD__CONSTRAINTS_H |
19 |
|
#define CVC5__THEORY__ARITH__NL__CAD__CONSTRAINTS_H |
20 |
|
|
21 |
|
#ifdef CVC5_POLY_IMP |
22 |
|
|
23 |
|
#include <poly/polyxx.h> |
24 |
|
|
25 |
|
#include <tuple> |
26 |
|
#include <vector> |
27 |
|
|
28 |
|
#include "theory/arith/nl/poly_conversion.h" |
29 |
|
|
30 |
|
namespace cvc5 { |
31 |
|
namespace theory { |
32 |
|
namespace arith { |
33 |
|
namespace nl { |
34 |
|
namespace cad { |
35 |
|
|
36 |
9828 |
class Constraints |
37 |
|
{ |
38 |
|
public: |
39 |
|
/** Type alias for a list of constraints. */ |
40 |
|
using Constraint = std::tuple<poly::Polynomial, poly::SignCondition, Node>; |
41 |
|
using ConstraintVector = std::vector<Constraint>; |
42 |
|
|
43 |
136 |
VariableMapper& varMapper() { return d_varMapper; } |
44 |
|
|
45 |
|
/** |
46 |
|
* Add a constraint (represented by a polynomial and a sign condition) to the |
47 |
|
* list of constraints. |
48 |
|
*/ |
49 |
|
void addConstraint(const poly::Polynomial& lhs, |
50 |
|
poly::SignCondition sc, |
51 |
|
Node n); |
52 |
|
|
53 |
|
/** |
54 |
|
* Add a constraints (represented by a node) to the list of constraints. |
55 |
|
* The given node can either be a negation (NOT) or a suitable relation symbol |
56 |
|
* as checked by is_suitable_relation(). |
57 |
|
*/ |
58 |
|
void addConstraint(Node n); |
59 |
|
|
60 |
|
/** |
61 |
|
* Gives the list of added constraints. |
62 |
|
*/ |
63 |
|
const ConstraintVector& getConstraints() const; |
64 |
|
|
65 |
|
/** |
66 |
|
* Remove all constraints. |
67 |
|
*/ |
68 |
|
void reset(); |
69 |
|
|
70 |
|
private: |
71 |
|
/** |
72 |
|
* A list of constraints, each comprised of a polynomial and a sign |
73 |
|
* condition. |
74 |
|
*/ |
75 |
|
ConstraintVector d_constraints; |
76 |
|
|
77 |
|
/** |
78 |
|
* A mapping from cvc5 variables to poly variables. |
79 |
|
*/ |
80 |
|
VariableMapper d_varMapper; |
81 |
|
|
82 |
|
void sortConstraints(); |
83 |
|
}; |
84 |
|
|
85 |
|
} // namespace cad |
86 |
|
} // namespace nl |
87 |
|
} // namespace arith |
88 |
|
} // namespace theory |
89 |
|
} // namespace cvc5 |
90 |
|
|
91 |
|
#endif |
92 |
|
|
93 |
|
#endif |