| ... | ... |
@@ -501,48 +501,54 @@ |
| 501 | 501 |
case MAX: |
| 502 | 502 |
glp_set_obj_dir(lp, GLP_MAX); |
| 503 | 503 |
break; |
| 504 | 504 |
} |
| 505 | 505 |
} |
| 506 | 506 |
|
| 507 | 507 |
GlpkBase::Sense GlpkBase::_getSense() const {
|
| 508 | 508 |
switch(glp_get_obj_dir(lp)) {
|
| 509 | 509 |
case GLP_MIN: |
| 510 | 510 |
return MIN; |
| 511 | 511 |
case GLP_MAX: |
| 512 | 512 |
return MAX; |
| 513 | 513 |
default: |
| 514 | 514 |
LEMON_ASSERT(false, "Wrong sense"); |
| 515 | 515 |
return GlpkBase::Sense(); |
| 516 | 516 |
} |
| 517 | 517 |
} |
| 518 | 518 |
|
| 519 | 519 |
void GlpkBase::_clear() {
|
| 520 | 520 |
glp_erase_prob(lp); |
| 521 | 521 |
rows.clear(); |
| 522 | 522 |
cols.clear(); |
| 523 | 523 |
} |
| 524 | 524 |
|
| 525 |
void GlpkBase::freeEnv() {
|
|
| 526 |
glp_free_env(); |
|
| 527 |
} |
|
| 528 |
|
|
| 529 |
GlpkBase::FreeEnvHelper GlpkBase::freeEnvHelper; |
|
| 530 |
|
|
| 525 | 531 |
// GlpkLp members |
| 526 | 532 |
|
| 527 | 533 |
GlpkLp::GlpkLp() |
| 528 | 534 |
: LpBase(), GlpkBase(), LpSolver() {
|
| 529 | 535 |
messageLevel(MESSAGE_NO_OUTPUT); |
| 530 | 536 |
} |
| 531 | 537 |
|
| 532 | 538 |
GlpkLp::GlpkLp(const GlpkLp& other) |
| 533 | 539 |
: LpBase(other), GlpkBase(other), LpSolver(other) {
|
| 534 | 540 |
messageLevel(MESSAGE_NO_OUTPUT); |
| 535 | 541 |
} |
| 536 | 542 |
|
| 537 | 543 |
GlpkLp* GlpkLp::newSolver() const { return new GlpkLp; }
|
| 538 | 544 |
GlpkLp* GlpkLp::cloneSolver() const { return new GlpkLp(*this); }
|
| 539 | 545 |
|
| 540 | 546 |
const char* GlpkLp::_solverName() const { return "GlpkLp"; }
|
| 541 | 547 |
|
| 542 | 548 |
void GlpkLp::_clear_temporals() {
|
| 543 | 549 |
_primal_ray.clear(); |
| 544 | 550 |
_dual_ray.clear(); |
| 545 | 551 |
} |
| 546 | 552 |
|
| 547 | 553 |
GlpkLp::SolveExitStatus GlpkLp::_solve() {
|
| 548 | 554 |
return solvePrimal(); |
| ... | ... |
@@ -79,48 +79,60 @@ |
| 79 | 79 |
|
| 80 | 80 |
virtual void _setColLowerBound(int i, Value value); |
| 81 | 81 |
virtual Value _getColLowerBound(int i) const; |
| 82 | 82 |
|
| 83 | 83 |
virtual void _setColUpperBound(int i, Value value); |
| 84 | 84 |
virtual Value _getColUpperBound(int i) const; |
| 85 | 85 |
|
| 86 | 86 |
virtual void _setRowLowerBound(int i, Value value); |
| 87 | 87 |
virtual Value _getRowLowerBound(int i) const; |
| 88 | 88 |
|
| 89 | 89 |
virtual void _setRowUpperBound(int i, Value value); |
| 90 | 90 |
virtual Value _getRowUpperBound(int i) const; |
| 91 | 91 |
|
| 92 | 92 |
virtual void _setObjCoeffs(ExprIterator b, ExprIterator e); |
| 93 | 93 |
virtual void _getObjCoeffs(InsertIterator b) const; |
| 94 | 94 |
|
| 95 | 95 |
virtual void _setObjCoeff(int i, Value obj_coef); |
| 96 | 96 |
virtual Value _getObjCoeff(int i) const; |
| 97 | 97 |
|
| 98 | 98 |
virtual void _setSense(Sense); |
| 99 | 99 |
virtual Sense _getSense() const; |
| 100 | 100 |
|
| 101 | 101 |
virtual void _clear(); |
| 102 | 102 |
|
| 103 |
private: |
|
| 104 |
|
|
| 105 |
static void freeEnv(); |
|
| 106 |
|
|
| 107 |
struct FreeEnvHelper {
|
|
| 108 |
~FreeEnvHelper() {
|
|
| 109 |
freeEnv(); |
|
| 110 |
} |
|
| 111 |
}; |
|
| 112 |
|
|
| 113 |
static FreeEnvHelper freeEnvHelper; |
|
| 114 |
|
|
| 103 | 115 |
public: |
| 104 | 116 |
|
| 105 | 117 |
///Pointer to the underlying GLPK data structure. |
| 106 | 118 |
LPX *lpx() {return lp;}
|
| 107 | 119 |
///Const pointer to the underlying GLPK data structure. |
| 108 | 120 |
const LPX *lpx() const {return lp;}
|
| 109 | 121 |
|
| 110 | 122 |
///Returns the constraint identifier understood by GLPK. |
| 111 | 123 |
int lpxRow(Row r) const { return rows(id(r)); }
|
| 112 | 124 |
|
| 113 | 125 |
///Returns the variable identifier understood by GLPK. |
| 114 | 126 |
int lpxCol(Col c) const { return cols(id(c)); }
|
| 115 | 127 |
|
| 116 | 128 |
}; |
| 117 | 129 |
|
| 118 | 130 |
/// \brief Interface for the GLPK LP solver |
| 119 | 131 |
/// |
| 120 | 132 |
/// This class implements an interface for the GLPK LP solver. |
| 121 | 133 |
///\ingroup lp_group |
| 122 | 134 |
class GlpkLp : public LpSolver, public GlpkBase {
|
| 123 | 135 |
public: |
| 124 | 136 |
|
| 125 | 137 |
///\e |
| 126 | 138 |
GlpkLp(); |
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