Added function _setCoeff().
2 * src/lemon/lp_skeleton.h
3 * - Part of LEMON, a generic C++ optimization library
5 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
6 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 * Permission to use, modify and distribute this software is granted
9 * provided that this copyright notice appears in all copies. For
10 * precise terms see the accompanying LICENSE file.
12 * This software is provided "AS IS" with no warranty of any kind,
13 * express or implied, and with no claim as to its suitability for any
18 #ifndef LEMON_LP_SKELETON
19 #define LEMON_LP_SKELETON
21 #include <lemon/lp_base.h>
24 ///\brief A skeleton file to implement LP solver interfaces
27 ///A skeleton class to implement LP solver interfaces
28 class LpSkeleton :public LpSolverBase {
33 virtual LpSolverBase &_newLp();
35 virtual LpSolverBase &_copyLp();
37 virtual int _addCol();
39 virtual int _addRow();
42 /// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
44 virtual void _setRowCoeffs(int i,
47 Value const * values );
50 /// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
52 virtual void _setColCoeffs(int i,
55 Value const * values );
57 /// Set one element of the coefficient matrix
58 virtual void _setCoeff(int row, int col, Value value);
60 /// The lower bound of a variable (column) have to be given by an
61 /// extended number of type Value, i.e. a finite number of type
62 /// Value or -\ref INF.
63 virtual void _setColLowerBound(int i, Value value);
66 /// The upper bound of a variable (column) have to be given by an
67 /// extended number of type Value, i.e. a finite number of type
68 /// Value or \ref INF.
69 virtual void _setColUpperBound(int i, Value value);
72 // /// The lower bound of a linear expression (row) have to be given by an
73 // /// extended number of type Value, i.e. a finite number of type
74 // /// Value or -\ref INF.
75 // virtual void _setRowLowerBound(int i, Value value);
78 // /// The upper bound of a linear expression (row) have to be given by an
79 // /// extended number of type Value, i.e. a finite number of type
80 // /// Value or \ref INF.
81 // virtual void _setRowUpperBound(int i, Value value);
83 /// The lower and upper bound of a linear expression (row) have to be
85 /// extended number of type Value, i.e. a finite number of type
86 /// Value or +/-\ref INF.
87 virtual void _setRowBounds(int i, Value lb, Value ub);
92 virtual void _clearObj();
94 virtual void _setObjCoeff(int i, Value obj_coef);
98 ///\bug Wrong interface
100 virtual SolveExitStatus _solve();
104 ///\bug Wrong interface
106 virtual Value _getPrimal(int i);
109 ///\bug Wrong interface
111 virtual Value _getPrimalValue();
114 ///\bug Wrong interface
116 virtual SolutionStatus _getPrimalStatus();
119 virtual void _setMax();
121 virtual void _setMin();
125 LpSkeleton() : LpSolverBase(), col_num(0), row_num(0) {}
130 #endif // LEMON_LP_SKELETON