/usr/include/lpsolve/lp_SOS.h is in liblpsolve55-dev 5.5.0.13-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | #ifndef HEADER_lp_SOS
#define HEADER_lp_SOS
/* Specially Ordered Sets (SOS) prototypes and settings */
/* ------------------------------------------------------------------------- */
#include "lp_types.h"
#include "lp_utils.h"
#include "lp_matrix.h"
/* SOS constraint defines */
/* ------------------------------------------------------------------------- */
#define SOS1 1
#define SOS2 2
#define SOS3 -1
#define SOSn MAXINT32
#define SOS_START_SIZE 10 /* Start size of SOS_list array; realloced if needed */
/* Define SOS_is_feasible() return values */
/* ------------------------------------------------------------------------- */
#define SOS3_INCOMPLETE -2
#define SOS_INCOMPLETE -1
#define SOS_COMPLETE 0
#define SOS_INFEASIBLE 1
#define SOS_INTERNALERROR 2
typedef struct _SOSgroup SOSgroup;
typedef struct _SOSrec
{
SOSgroup *parent;
int tagorder;
char *name;
int type;
MYBOOL isGUB;
int size;
int priority;
int *members;
REAL *weights;
int *membersSorted;
int *membersMapped;
} SOSrec;
/* typedef */ struct _SOSgroup
{
lprec *lp; /* Pointer to owner */
SOSrec **sos_list; /* Array of pointers to SOS lists */
int sos_alloc; /* Size allocated to specially ordered sets (SOS1, SOS2...) */
int sos_count; /* Number of specially ordered sets (SOS1, SOS2...) */
int maxorder; /* The highest-order SOS in the group */
int sos1_count; /* Number of the lowest order SOS in the group */
int *membership; /* Array of variable-sorted indeces to SOSes that the variable is member of */
int *memberpos; /* Starting positions of the each column's membership list */
} /* SOSgroup */;
#ifdef __cplusplus
extern "C" {
#endif
/* SOS storage structure */
STATIC SOSgroup *create_SOSgroup(lprec *lp);
STATIC void resize_SOSgroup(SOSgroup *group);
STATIC int append_SOSgroup(SOSgroup *group, SOSrec *SOS);
STATIC int clean_SOSgroup(SOSgroup *group, MYBOOL forceupdatemap);
STATIC void free_SOSgroup(SOSgroup **group);
STATIC SOSrec *create_SOSrec(SOSgroup *group, char *name, int type, int priority, int size, int *variables, REAL *weights);
STATIC MYBOOL delete_SOSrec(SOSgroup *group, int sosindex);
STATIC int append_SOSrec(SOSrec *SOS, int size, int *variables, REAL *weights);
STATIC void free_SOSrec(SOSrec *SOS);
/* SOS utilities */
STATIC int make_SOSchain(lprec *lp, MYBOOL forceresort);
STATIC int SOS_member_updatemap(SOSgroup *group);
STATIC MYBOOL SOS_member_sortlist(SOSgroup *group, int sosindex);
STATIC MYBOOL SOS_shift_col(SOSgroup *group, int sosindex, int column, int delta, LLrec *usedmap, MYBOOL forceresort);
int SOS_member_delete(SOSgroup *group, int sosindex, int member);
int SOS_get_type(SOSgroup *group, int sosindex);
int SOS_infeasible(SOSgroup *group, int sosindex);
int SOS_member_index(SOSgroup *group, int sosindex, int member);
int SOS_member_count(SOSgroup *group, int sosindex);
int SOS_memberships(SOSgroup *group, int column);
int *SOS_get_candidates(SOSgroup *group, int sosindex, int column, MYBOOL excludetarget, REAL *upbound, REAL *lobound);
int SOS_is_member(SOSgroup *group, int sosindex, int column);
MYBOOL SOS_is_member_of_type(SOSgroup *group, int column, int sostype);
MYBOOL SOS_set_GUB(SOSgroup *group, int sosindex, MYBOOL state);
MYBOOL SOS_is_GUB(SOSgroup *group, int sosindex);
MYBOOL SOS_is_marked(SOSgroup *group, int sosindex, int column);
MYBOOL SOS_is_active(SOSgroup *group, int sosindex, int column);
MYBOOL SOS_is_full(SOSgroup *group, int sosindex, int column, MYBOOL activeonly);
MYBOOL SOS_can_activate(SOSgroup *group, int sosindex, int column);
MYBOOL SOS_set_marked(SOSgroup *group, int sosindex, int column, MYBOOL asactive);
MYBOOL SOS_unmark(SOSgroup *group, int sosindex, int column);
int SOS_fix_unmarked(SOSgroup *group, int sosindex, int variable, REAL *bound, REAL value,
MYBOOL isupper, int *diffcount, DeltaVrec *changelog);
int SOS_fix_list(SOSgroup *group, int sosindex, int variable, REAL *bound,
int *varlist, MYBOOL isleft, DeltaVrec *changelog);
int SOS_is_satisfied(SOSgroup *group, int sosindex, REAL *solution);
MYBOOL SOS_is_feasible(SOSgroup *group, int sosindex, REAL *solution);
#ifdef __cplusplus
}
#endif
#endif /* HEADER_lp_SOS */
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