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SoPlex

Sequential object-oriented simPlex

SVSetBase< R >::DLPSV Class Reference

SVectorBase with prev/next pointers. More...

Inheritance diagram for SVSetBase< R >::DLPSV:

Public Member Functions

Construction / destruction
 DLPSV ()
 Default constructor.
 
 DLPSV (const DLPSV &copy)
 Copy constructor.
 
Successor / predecessor
DLPSV *& next ()
 Next SVectorBase.
 
DLPSV *const & next () const
 Next SVectorBase.
 
DLPSV *const & prev () const
 Previous SVectorBase.
 
DLPSV *& prev ()
 Previous SVectorBase.
 
- Public Member Functions inherited from SVectorBase< R >
int size () const
 Number of used indices.
 
int max () const
 Maximal number of indices.
 
int dim () const
 Dimension of the vector defined as maximal index + 1.
 
int number (int i) const
 Number of index i.
 
operator[] (int i) const
 Value to index i.
 
Nonzero< R > & element (int n)
 Reference to the n 'th nonzero element.
 
const Nonzero< R > & element (int n) const
 The n 'th nonzero element.
 
int & index (int n)
 Reference to index of n 'th nonzero.
 
int index (int n) const
 Index of n 'th nonzero.
 
R & value (int n)
 Reference to value of n 'th nonzero.
 
const R & value (int n) const
 Value of n 'th nonzero.
 
void add (int i, const R &v)
 Append one nonzero (i,v).
 
void add (int i)
 Append one uninitialized nonzero.
 
void add (const SVectorBase &sv)
 Append nonzeros of sv.
 
void add (int n, const int i[], const R v[])
 Append n nonzeros.
 
template<class S >
void add (int n, const int i[], const S v[])
 Append n nonzeros.
 
void add (int n, const Nonzero< R > e[])
 Append n nonzeros.
 
void remove (int n, int m)
 Remove nonzeros n thru m.
 
void remove (int n)
 Remove n 'th nonzero.
 
void clear ()
 Remove all indices.
 
void sort ()
 Sort nonzeros to increasing indices.
 
maxAbs () const
 Maximum absolute value, i.e., infinity norm.
 
minAbs () const
 Minimum absolute value.
 
Real length () const
 Floating point approximation of euclidian norm (without any approximation guarantee).
 
length2 () const
 Squared norm.
 
SVectorBase< R > & operator*= (const R &x)
 Scaling.
 
operator* (const VectorBase< R > &w) const
 Inner product.
 
template<class S >
operator* (const SVectorBase< S > &w) const
 inner product for sparse vectors
 
 SVectorBase (int n=0, Nonzero< R > *p_mem=0)
 Default constructor.
 
template<class S >
SVectorBase< R > & operator= (const VectorBase< S > &vec)
 Assignment operator.
 
SVectorBase< R > & operator= (const SVectorBase< R > &sv)
 Assignment operator.
 
template<class S >
SVectorBase< R > & operator= (const SVectorBase< S > &sv)
 Assignment operator.
 
template<class S >
SVectorBase< R > & assignArray (const S *rowValues, const int *rowIndices, int rowSize)
 Assignment operator.
 
template<class S >
SVectorBase< R > & operator= (const SSVectorBase< S > &sv)
 Assignment operator.
 
Nonzero< R > * mem () const
 get pointer to internal memory.
 
void set_size (int s)
 Set size of the vector.
 
void set_max (int m)
 Set the maximum number of nonzeros in the vector.
 
void setMem (int n, Nonzero< R > *elmem)
 Set the memory area where the nonzeros will be stored.
 
bool isConsistent () const
 Consistency check.
 

Private Attributes

Data
DLPSVthenext
 next SVectorBase
 
DLPSVtheprev
 previous SVectorBase
 

Additional Inherited Members

- Public Types inherited from SVectorBase< R >
typedef Nonzero< R > Element
 

Detailed Description

template<class R>
class soplex::SVSetBase< R >::DLPSV

SVectorBase with prev/next pointers.

Todo:
Check whether SVSetBase::DLPSV can be implemented as IdElement<SVectorBase>

The management of the SVectorBases is implemented by a DataSet<DLPSV>, the keys used externally are DataKeys.

The management of nonzeros is done by a Real linked list IdList<DLPSV>, where the SVectorBases are kept in the order in which their indices occurr in the Array. The SVectorBases are kept without holes: If one is removed or moved to the end, the SVectorBase preceeding it obtains the space for all the nonzeros that previously belonged to the (re-)moved one. However, the nonzeros in use are uneffected by this.

Definition at line 81 of file svsetbase.h.

Constructor & Destructor Documentation

DLPSV ( )

Default constructor.

Definition at line 101 of file svsetbase.h.

DLPSV ( const DLPSV copy)

Copy constructor.

Definition at line 106 of file svsetbase.h.

Member Function Documentation

DLPSV*& next ( )

Next SVectorBase.

Definition at line 117 of file svsetbase.h.

References SVSetBase< R >::DLPSV::thenext.

DLPSV* const& next ( ) const

Next SVectorBase.

Definition at line 123 of file svsetbase.h.

References SVSetBase< R >::DLPSV::thenext.

DLPSV* const& prev ( ) const

Previous SVectorBase.

Definition at line 129 of file svsetbase.h.

References SVSetBase< R >::DLPSV::theprev.

DLPSV*& prev ( )

Previous SVectorBase.

Definition at line 135 of file svsetbase.h.

References SVSetBase< R >::DLPSV::theprev.

Member Data Documentation

DLPSV* thenext
private

next SVectorBase

Definition at line 89 of file svsetbase.h.

Referenced by SVSetBase< R >::DLPSV::next().

DLPSV* theprev
private

previous SVectorBase

Definition at line 90 of file svsetbase.h.

Referenced by SVSetBase< R >::DLPSV::prev().