/usr/include/lpsolve/lp_simplex.h is in liblpsolve55-dev 5.5.0.13-7build1.
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 | #ifndef HEADER_lp_simplex
#define HEADER_lp_simplex
#include "lp_types.h"
#define ForceDualSimplexInBB /* Force use/switch of dual simplex in B&B */
#define AssumeHighAccuracyInBB /* No iteration of simplex solves at infeasibility */
/*#define UseLongStepPruning*/
/*#define UseLongStepDualPhase1*/
#define primal_UseRejectionList
#define dual_UseRejectionList
#define dual_RemoveBasicFixedVars
/*#define dual_Phase1PriceEqualities */ /* Force elimination of equality slacks */
#define AcceptMarginalAccuracy
#ifdef __cplusplus
extern "C" {
#endif
/* Put function headers here */
STATIC int primloop(lprec *lp, MYBOOL primalfeasible, REAL primaloffset);
STATIC int dualloop(lprec *lp, MYBOOL dualfeasible, int dualinfeasibles[], REAL dualoffset);
STATIC int spx_run(lprec *lp, MYBOOL validInvB);
STATIC int spx_solve(lprec *lp);
STATIC int lag_solve(lprec *lp, REAL start_bound, int num_iter);
STATIC int heuristics(lprec *lp, int mode);
STATIC int lin_solve(lprec *lp);
#ifdef __cplusplus
}
#endif
#endif /* HEADER_lp_simplex */
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