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Set of indices.Class IdxSet provides a set of indices. At construction it must be given an array of int where to store the indice and its length. The array will from then on be managed by the IdxSet.
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#include <idxset.h>
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| IdxSet (int n, int imem[], int l=0) |
| constructor.
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| IdxSet () |
| default constructor.
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virtual | ~IdxSet () |
| destructor.
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IdxSet & | operator= (const IdxSet &set) |
| assignment operator.
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| IdxSet (const IdxSet &) |
| copy constructor.
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int | index (int n) const |
| access n 'th index.
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int | size () const |
| returns the number of used indices.
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int | max () const |
| returns the maximal number of indices which can be stored in IdxSet.
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int | dim () const |
| returns the maximal index.
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int | number (int i) const |
| returns the position number of index i .
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void | add (int n) |
| appends n uninitialized indices.
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void | add (const IdxSet &set) |
| appends all indices of set .
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void | add (int n, const int i[]) |
| appends n indices in i .
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void | addIdx (int i) |
| appends index i .
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void | remove (int n, int m) |
| removes indices at position numbers n through m .
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void | remove (int n) |
| removes n 'th index.
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void | clear () |
| removes all indices.
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bool | isConsistent () const |
| consistency check.
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int | num |
| number of used indices
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int | len |
| length of array idx
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int * | idx |
| array of indices
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bool | freeArray |
| true iff idx should be freed inside of this object
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Set of indices.
Class IdxSet provides a set of indices. At construction it must be given an array of int where to store the indice and its length. The array will from then on be managed by the IdxSet.
Indices are implicitely numbered from 0 thru size()-1. They can be accessed (and altered) via method index() with the desired index number as argument. Range checking is performed in the debug version.
Indices may be added or removed from the set, by calling add() or remove() methods, respectively. However, no IdxSet can hold more then max() indices, i.e. the number given at the constructor.
When removing indices, the remaining ones are renumbered. However, all indices before the first removed index keep their number unchanged.
The internal structure of an IdxSet consists of an array idx storing the indices, its length len, and the actually used number of indices num. The class IdxSet doesn't allocate memory for the idx array. Instead, the user has to provide an adequate buffer to the constructor.
An IdxSet cannot be extended to fit more than max() elements. If necessary, the user must explicitely provide the IdxSet with a suitable memory. Alternatively, one can use DIdxSets which provide the required memory managemant.
Definition at line 56 of file idxset.h.
IdxSet |
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int |
n, |
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int |
imem[], |
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int |
l = 0 |
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constructor.
The constructur receives the index memory imem to use for saving its indices. This must be large enough to fit n indices. l can be given to construct an IdxSet initialized to the l first indices in imem .
Definition at line 80 of file idxset.h.
References IdxSet::isConsistent().
default constructor.
The default constructor creates an index set with an empty index space. You cannot store any indices in an IdxSet created with the default constructor.
Definition at line 91 of file idxset.h.
References IdxSet::isConsistent().
void add |
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const IdxSet & |
set | ) |
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void add |
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int |
n, |
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const int |
i[] |
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removes all indices.
Definition at line 184 of file idxset.h.
References IdxSet::num.
Referenced by SPxDevexPR::buildBestPriceVectorEnterCoDim(), SPxSteepPR::buildBestPriceVectorEnterCoDim(), SPxDevexPR::buildBestPriceVectorEnterDim(), SPxSteepPR::buildBestPriceVectorEnterDim(), SPxDevexPR::buildBestPriceVectorLeave(), SPxSteepPR::buildBestPriceVectorLeave(), SPxSolver::clear(), SSVectorBase< Real >::clear(), SPxSolver::computeCoTest(), SPxSolver::computeFtest(), SPxSolver::computeTest(), SPxDevexPR::init(), SPxSteepPR::setType(), SSVectorBase< Real >::setup(), SPxSolver::updateCoTest(), SPxSolver::updateFtest(), and SPxSolver::updateTest().
access n 'th index.
Definition at line 118 of file idxset.h.
References IdxSet::idx, and IdxSet::size().
Referenced by SPxDevexPR::buildBestPriceVectorEnterCoDim(), SPxSteepPR::buildBestPriceVectorEnterCoDim(), SPxDevexPR::buildBestPriceVectorEnterDim(), SPxSteepPR::buildBestPriceVectorEnterDim(), SPxDevexPR::buildBestPriceVectorLeave(), SPxSteepPR::buildBestPriceVectorLeave(), SPxDevexPR::entered4(), SPxSteepPR::entered4(), SSVectorBase< Real >::index(), IdxSet::isConsistent(), SPxSolver::perturbMax(), SPxSolver::perturbMin(), soplex::reconstructVector(), SPxDefaultRT::selectEnter(), SPxDevexPR::selectEnterHyperCoDim(), SPxSteepPR::selectEnterHyperCoDim(), SPxDevexPR::selectEnterHyperDim(), SPxSteepPR::selectEnterHyperDim(), SPxDantzigPR::selectEnterSparseCoDim(), SPxDevexPR::selectEnterSparseCoDim(), SPxSteepPR::selectEnterSparseCoDim(), SPxDantzigPR::selectEnterSparseDim(), SPxDevexPR::selectEnterSparseDim(), SPxSteepPR::selectEnterSparseDim(), SPxDefaultRT::selectLeave(), SPxDevexPR::selectLeaveHyper(), SPxSteepPR::selectLeaveHyper(), SPxDantzigPR::selectLeaveSparse(), SPxDevexPR::selectLeaveSparse(), SPxSteepPR::selectLeaveSparse(), SPxSolver::updateCoTest(), SPxSolver::updateFtest(), and SPxSolver::updateTest().
bool isConsistent |
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returns the maximal number of indices which can be stored in IdxSet.
Definition at line 129 of file idxset.h.
References IdxSet::len.
Referenced by DIdxSet::add(), IdxSet::add(), DIdxSet::addIdx(), IdxSet::addIdx(), SPxSolver::computeCoTest(), SPxSolver::computeTest(), IdxSet::IdxSet(), SSVectorBase< Real >::isConsistent(), IdxSet::operator=(), SSVectorBase< Real >::operator=(), DIdxSet::setMax(), SSVectorBase< Real >::setSize(), and SSVectorBase< Real >::setup_and_assign().
int number |
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int |
i | ) |
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assignment operator.
The assignment operator copies all nonzeros of the right handside IdxSet to the left one. This implies, that the latter must have enough index memory.
Definition at line 68 of file idxset.cpp.
References IdxSet::freeArray, IdxSet::idx, IdxSet::isConsistent(), IdxSet::len, IdxSet::max(), IdxSet::num, IdxSet::size(), soplex::spx_alloc(), and soplex::spx_free().
Referenced by DIdxSet::DIdxSet(), DIdxSet::operator=(), SSVectorBase< Real >::operator=(), SSVectorBase< Real >::setup_and_assign(), and SSVectorBase< Real >::SSVectorBase().
void remove |
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int |
n, |
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int |
m |
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removes indices at position numbers n through m .
Definition at line 49 of file idxset.cpp.
References IdxSet::idx, IdxSet::num, and IdxSet::size().
Referenced by SPxDevexPR::buildBestPriceVectorEnterCoDim(), SPxSteepPR::buildBestPriceVectorEnterCoDim(), SPxDevexPR::buildBestPriceVectorEnterDim(), SPxSteepPR::buildBestPriceVectorEnterDim(), SPxDevexPR::selectEnterHyperCoDim(), SPxSteepPR::selectEnterHyperCoDim(), SPxDevexPR::selectEnterHyperDim(), SPxSteepPR::selectEnterHyperDim(), SPxDantzigPR::selectEnterSparseCoDim(), SPxDevexPR::selectEnterSparseCoDim(), SPxSteepPR::selectEnterSparseCoDim(), SPxDantzigPR::selectEnterSparseDim(), SPxDevexPR::selectEnterSparseDim(), SPxSteepPR::selectEnterSparseDim(), SPxDevexPR::selectLeaveHyper(), SPxSteepPR::selectLeaveHyper(), SPxDantzigPR::selectLeaveSparse(), SPxDevexPR::selectLeaveSparse(), and SPxSteepPR::selectLeaveSparse().
returns the number of used indices.
Definition at line 124 of file idxset.h.
References IdxSet::num.
Referenced by DIdxSet::add(), IdxSet::add(), DIdxSet::addIdx(), IdxSet::addIdx(), SPxDevexPR::buildBestPriceVectorEnterCoDim(), SPxSteepPR::buildBestPriceVectorEnterCoDim(), SPxDevexPR::buildBestPriceVectorEnterDim(), SPxSteepPR::buildBestPriceVectorEnterDim(), SPxDevexPR::buildBestPriceVectorLeave(), SPxSteepPR::buildBestPriceVectorLeave(), SPxSolver::computeCoTest(), SPxSolver::computeTest(), DIdxSet::DIdxSet(), IdxSet::dim(), SPxDevexPR::entered4(), SPxSteepPR::entered4(), IdxSet::IdxSet(), IdxSet::index(), IdxSet::isConsistent(), SPxDevexPR::left4(), SPxSteepPR::left4(), soplex::LPFwriteGenerals(), IdxSet::number(), DIdxSet::operator=(), IdxSet::operator=(), soplex::reconstructVector(), SSVectorBase< Real >::reDim(), IdxSet::remove(), SPxDefaultRT::selectEnter(), SPxDevexPR::selectEnterHyperCoDim(), SPxSteepPR::selectEnterHyperCoDim(), SPxDevexPR::selectEnterHyperDim(), SPxSteepPR::selectEnterHyperDim(), SPxDantzigPR::selectEnterSparseCoDim(), SPxDevexPR::selectEnterSparseCoDim(), SPxSteepPR::selectEnterSparseCoDim(), SPxDantzigPR::selectEnterSparseDim(), SPxDevexPR::selectEnterSparseDim(), SPxSteepPR::selectEnterSparseDim(), SPxDevexPR::selectEnterX(), SPxSteepPR::selectEnterX(), SPxDefaultRT::selectLeave(), SPxDevexPR::selectLeave(), SPxSteepPR::selectLeave(), SPxDevexPR::selectLeaveHyper(), SPxSteepPR::selectLeaveHyper(), SPxDantzigPR::selectLeaveSparse(), SPxDevexPR::selectLeaveSparse(), SPxSteepPR::selectLeaveSparse(), SSVectorBase< Real >::setMax(), DIdxSet::setMax(), SSVectorBase< Real >::size(), SPxSolver::updateCoTest(), SPxSolver::updateFtest(), SPxSolver::updateTest(), and SPxLPBase< R >::writeMPS().
array of indices
Definition at line 65 of file idxset.h.
Referenced by IdxSet::add(), IdxSet::addIdx(), SSVectorBase< Real >::altIndexMem(), SSVectorBase< R >::assign2product1(), SSVectorBase< R >::assign2productAndSetup(), SSVectorBase< R >::assign2productFull(), SSVectorBase< R >::assign2productShort(), SSVectorBase< Real >::clear(), DIdxSet::DIdxSet(), IdxSet::dim(), IdxSet::IdxSet(), IdxSet::index(), SSVectorBase< Real >::indexMem(), IdxSet::isConsistent(), SSVectorBase< Real >::length2(), SSVectorBase< Real >::maxAbs(), IdxSet::number(), IdxSet::operator=(), SSVectorBase< Real >::operator=(), IdxSet::remove(), SSVectorBase< Real >::setMax(), DIdxSet::setMax(), SSVectorBase< Real >::setup(), SSVectorBase< Real >::setup_and_assign(), SSVectorBase< Real >::SSVectorBase(), SSVectorBase< Real >::value(), DIdxSet::~DIdxSet(), IdxSet::~IdxSet(), and SSVectorBase< Real >::~SSVectorBase().
number of used indices
Definition at line 63 of file idxset.h.
Referenced by IdxSet::add(), IdxSet::addIdx(), SSVectorBase< R >::assign2productAndSetup(), IdxSet::clear(), SSVectorBase< Real >::clear(), IdxSet::IdxSet(), SSVectorBase< Real >::length2(), SSVectorBase< Real >::maxAbs(), IdxSet::operator=(), SSVectorBase< Real >::operator=(), IdxSet::remove(), SSVectorBase< Real >::setSize(), SSVectorBase< Real >::setup(), SSVectorBase< Real >::setup_and_assign(), and IdxSet::size().
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