1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*******************************************************/
/* CUDF solver: notuptodate_criteria.h */
/* Concrete class for the notuptodate criteria */
/* (c) Claude Michel I3S (UNSA-CNRS) 2009,2010,2011 */
/*******************************************************/
#ifndef _NOTUPTODATE_CRITERIA_H_
#define _NOTUPTODATE_CRITERIA_H_
#include <abstract_criteria.h>
// A concrete class for the notuptodate criteria
// i.e. number of virtual packages that are not installed
// with their highest available version
class notuptodate_criteria: public abstract_criteria {
public:
CUDFproblem *problem; // a pointer to the problem
abstract_solver *solver; // a pointer to the solver
// column of the first variable used by the criteria
int first_free_var;
// Allocate some columns for the criteria
int set_variable_range(int first_free_var);
// Add the criteria to the objective
int add_criteria_to_objective(CUDFcoefficient lambda);
// Add the criteria to the constraint set
int add_criteria_to_constraint(CUDFcoefficient lambda);
// Add constraints required by the criteria
int add_constraints();
// upper bound of the criteria
CUDFcoefficient ub;
// Compute the criteria range, upper and lower bounds
CUDFcoefficient bound_range();
CUDFcoefficient upper_bound();
CUDFcoefficient lower_bound();
// Does the criteria allows problem reductions
bool can_reduce(CUDFcoefficient lambda) { return ((lambda >= 0) && (lambda_crit >= 0)); }
// Criteria initialization
void initialize(CUDFproblem *problem, abstract_solver *solver);
// lambda multiplier for the criteria
CUDFcoefficient lambda_crit ;
// Criteria initialization
notuptodate_criteria() { this->lambda_crit = +1; };
notuptodate_criteria(CUDFcoefficient lambda_crit) { this->lambda_crit = lambda_crit; };
};
#endif
|
