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ClpConstraintLinear.hpp
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1 /* $Id: ClpConstraintLinear.hpp 2385 2019-01-06 19:43:06Z unxusr $ */
2 // Copyright (C) 2007, International Business Machines
3 // Corporation and others. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5
6 #ifndef ClpConstraintLinear_H
7 #define ClpConstraintLinear_H
8
9 #include "ClpConstraint.hpp"
10
11 //#############################################################################
12
17 class ClpConstraintLinear : public ClpConstraint {
18
19 public:
21
22
29 virtual int gradient(const ClpSimplex *model,
30 const double *solution,
31 double *gradient,
32 double &functionValue,
33 double &offset,
34 bool useScaling = false,
35 bool refresh = true) const;
37 virtual void resize(int newNumberColumns);
39 virtual void deleteSome(int numberToDelete, const int *which);
41 virtual void reallyScale(const double *columnScale);
45 virtual int markNonlinear(char *which) const;
49 virtual int markNonzero(char *which) const;
51
53
54 ClpConstraintLinear();
56
58 ClpConstraintLinear(int row, int numberCoefficients, int numberColumns,
59 const int *column, const double *element);
60
63 ClpConstraintLinear(const ClpConstraintLinear &rhs);
64
66 ClpConstraintLinear &operator=(const ClpConstraintLinear &rhs);
67
69 virtual ~ClpConstraintLinear();
70
72 virtual ClpConstraint *clone() const;
74
76 virtual int numberCoefficients() const;
79 inline int numberColumns() const
80 {
81 return numberColumns_;
82 }
84 inline const int *column() const
85 {
86 return column_;
87 }
89 inline const double *coefficient() const
90 {
91 return coefficient_;
92 }
94
95 //---------------------------------------------------------------------------
96
97 private:
100 int *column_;
102 double *coefficient_;
104 int numberColumns_;
106 int numberCoefficients_;
108 };
109
110 #endif
111
112 /* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
113 */
ClpConstraintLinear::deleteSome
virtual void deleteSome(int numberToDelete, const int *which)
Delete columns in constraint.
ClpConstraint::offset
double offset() const
Constraint offset.
Definition: ClpConstraint.hpp:100
ClpConstraintLinear::operator=
ClpConstraintLinear & operator=(const ClpConstraintLinear &rhs)
Assignment operator.
ClpConstraintLinear::column_
int * column_
Definition: ClpConstraintLinear.hpp:100
ClpConstraintLinear::markNonlinear
virtual int markNonlinear(char *which) const
Given a zeroed array sets nonlinear columns to 1.
ClpConstraintLinear::column
const int * column() const
Columns.
Definition: ClpConstraintLinear.hpp:84
ClpConstraint
Constraint Abstract Base Class.
Definition: ClpConstraint.hpp:18
ClpConstraint.hpp
ClpConstraintLinear::markNonzero
virtual int markNonzero(char *which) const
Given a zeroed array sets possible nonzero coefficients to 1.
ClpConstraintLinear::reallyScale
virtual void reallyScale(const double *columnScale)
Scale constraint.
ClpConstraintLinear
Linear Constraint Class.
Definition: ClpConstraintLinear.hpp:17
ClpConstraint::functionValue
double functionValue() const
Stored constraint function value.
Definition: ClpConstraint.hpp:94
ClpConstraintLinear::resize
virtual void resize(int newNumberColumns)
Resize constraint.
ClpConstraintLinear::coefficient
const double * coefficient() const
Coefficients.
Definition: ClpConstraintLinear.hpp:89
ClpSimplex
This solves LPs using the simplex method.
Definition: ClpSimplex.hpp:106
ClpConstraintLinear::coefficient_
double * coefficient_
Coefficients.
Definition: ClpConstraintLinear.hpp:102
ClpConstraintLinear::numberColumns
int numberColumns() const
Number of columns in linear constraint.
Definition: ClpConstraintLinear.hpp:79
ClpConstraintLinear::numberColumns_
int numberColumns_
Useful to have number of columns about.
Definition: ClpConstraintLinear.hpp:104
ClpConstraintLinear::clone
virtual ClpConstraint * clone() const
Clone.
ClpConstraintLinear::~ClpConstraintLinear
virtual ~ClpConstraintLinear()
Destructor.
ClpConstraintLinear::numberCoefficients_
int numberCoefficients_
Number of coefficients.
Definition: ClpConstraintLinear.hpp:106
ClpConstraintLinear::gradient
virtual int gradient(const ClpSimplex *model, const double *solution, double *gradient, double &functionValue, double &offset, bool useScaling=false, bool refresh=true) const
Fills gradient.
ClpConstraintLinear::ClpConstraintLinear
ClpConstraintLinear()
Default Constructor.
ClpConstraintLinear::numberCoefficients
virtual int numberCoefficients() const
Number of coefficients.