SoPlex: Vector_exact Class Reference

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Dense vector of MpqReal.Class Vector_exact is a copy of class Vector replacing the floating point type Real with the exact MpqReal. More...

#include <vector_exact.h>

Inheritance diagram for Vector_exact:

Inheritance graph

Public Member Functions
Construction and assignment
	Vector_exact (int p_dimen, MpqReal *p_val)
	construction

Vector_exact &	operator= (const Vector_exact &vec)
	Assignment operator.

Vector_exact &	operator= (const Vector &vec)
	Assignment operator.

Vector_exact &	operator= (const SVector &vec)
	Assignment operator.

Algebraic methods
Vector_exact &	operator+= (const Vector_exact &vec)
	vector addition

Vector_exact &	operator+= (const Vector &vec)
	vector addition

Vector_exact &	operator+= (const SVector &vec)
	vector addition

Vector_exact &	operator-= (const Vector_exact &vec)
	vector difference

Vector_exact &	operator-= (const Vector &vec)
	vector difference

Vector_exact &	operator-= (const SVector &vec)
	vector difference

Vector_exact &	operator*= (MpqReal x)
	scaling

MpqReal	maxAbs () const
	absolute biggest element (infinity norm).

MpqReal	minAbs () const
	absolute smallest element.

Vector_exact &	multAdd (MpqReal x, const Vector_exact &vec)
	addition of scaled vector

Vector_exact &	multAdd (MpqReal x, const Vector &vec)
	addition of scaled vector

Vector_exact &	multAdd (MpqReal x, const SVector &vec)
	addition of scaled vector

Protected Attributes
Data
int	dimen
	dimension of vector

MpqReal *	val
	values of a vector

Private Member Functions
Blocked
	Vector_exact ()
	we have no default constructor.

Access
int	dim () const
	dimension of vector

MpqReal &	operator[] (int n)
	return `n` 'th value by reference

MpqReal	operator[] (int n) const
	return `n` 'th value

bool	operator== (const Vector_exact &vec1, const Vector_exact &vec2)
	equality operator

Utilities
MpqReal *	get_ptr ()
	Conversion to C-style pointer.

const MpqReal *	get_const_ptr () const
	Conversion to C-style pointer.

bool	isConsistent () const
	consistency check.

void	clear ()
	set vector to 0.

std::ostream &	operator<< (std::ostream &s, const Vector_exact &vec)
	output operator.

Detailed Description

Dense vector of MpqReal.

Class Vector_exact is a copy of class Vector replacing the floating point type Real with the exact MpqReal.

Definition at line 41 of file vector_exact.h.

Constructor & Destructor Documentation

Vector_exact	(	int	p_dimen,
		MpqReal *	p_val
	)

construction

There is no default constructor since the storage for a Vector must be provided externally. Storage must be passed as a memory block val at construction. It must be large enough to fit at least dimen Real values.

Definition at line 68 of file vector_exact.h.

References Vector_exact::dimen, and Vector_exact::isConsistent().

Vector_exact ( )

private

we have no default constructor.

Member Function Documentation

void clear ( )

set vector to 0.

Definition at line 176 of file vector_exact.h.

References Vector_exact::dimen, and Vector_exact::val.

Referenced by SPxLP::computeDualActivity(), SPxLP::computePrimalActivity(), and Vector_exact::operator=().

int dim ( ) const

dimension of vector

Definition at line 93 of file vector_exact.h.

References Vector_exact::dimen.

Referenced by SPxLP::computeDualActivity(), SPxLP::computePrimalActivity(), DVector::DVector(), DVector_exact::DVector_exact(), Vector_exact::isConsistent(), Vector_exact::maxAbs(), Vector_exact::minAbs(), Vector_exact::multAdd(), Vector_exact::operator*=(), Vector_exact::operator+=(), Vector_exact::operator-=(), soplex::operator<<(), Vector_exact::operator=(), DVector_exact::operator=(), Vector::operator=(), soplex::operator==(), and DVector_exact::reSize().

const MpqReal* get_const_ptr ( ) const

Conversion to C-style pointer.

This function serves for using a Vector in an C-style function. It returns a pointer to the first value of the array.

Definition at line 165 of file vector_exact.h.

References Vector_exact::val.

MpqReal* get_ptr ( )

Conversion to C-style pointer.

This function serves for using a Vector in an C-style function. It returns a pointer to the first value of the array.

Todo:: check whether this non-const c-style acces should indeed be public

Definition at line 157 of file vector_exact.h.

References Vector_exact::val.

bool isConsistent ( ) const

consistency check.

Definition at line 241 of file vector_exact.cpp.

References Vector_exact::dim(), MSGinconsistent, and Vector_exact::val.

Referenced by DVector_exact::isConsistent(), Vector_exact::operator=(), and Vector_exact::Vector_exact().

MpqReal maxAbs ( ) const

absolute biggest element (infinity norm).

Definition at line 174 of file vector_exact.cpp.

References soplex::abs(), Vector_exact::dim(), and Vector_exact::val.

MpqReal minAbs ( ) const

absolute smallest element.

Definition at line 191 of file vector_exact.cpp.

References soplex::abs(), Vector_exact::dim(), and Vector_exact::val.

Vector_exact & multAdd	(	MpqReal	x,
		const Vector_exact &	vec
	)

addition of scaled vector

Definition at line 210 of file vector_exact.cpp.

References Vector_exact::dim(), Vector_exact::dimen, and Vector_exact::val.

Referenced by SPxLP::computeDualActivity(), and SPxLP::computePrimalActivity().

Vector_exact& multAdd	(	MpqReal	x,
		const Vector &	vec
	)

addition of scaled vector

Vector_exact & multAdd	(	MpqReal	x,
		const SVector &	vec
	)

addition of scaled vector

Definition at line 220 of file vector_exact.cpp.

References Vector_exact::dim(), SVector::index(), SVector::size(), Vector_exact::val, and SVector::value().

Vector_exact & operator*= ( MpqReal x )

scaling

Definition at line 164 of file vector_exact.cpp.

References Vector_exact::dim(), and Vector_exact::val.

Vector_exact & operator+= ( const Vector_exact & vec )

vector addition

Definition at line 90 of file vector_exact.cpp.

References Vector_exact::dim(), Vector_exact::dimen, and Vector_exact::val.

Vector_exact & operator+= ( const Vector & vec )

vector addition

Definition at line 102 of file vector_exact.cpp.

References Vector_exact::dim(), Vector::dim(), and Vector_exact::val.

Vector_exact & operator+= ( const SVector & vec )

vector addition

Definition at line 114 of file vector_exact.cpp.

References Vector_exact::dim(), SVector::index(), SVector::size(), Vector_exact::val, and SVector::value().

Vector_exact & operator-= ( const Vector_exact & vec )

vector difference

Definition at line 128 of file vector_exact.cpp.

References Vector_exact::dim(), and Vector_exact::val.

Vector_exact & operator-= ( const Vector & vec )

vector difference

Definition at line 140 of file vector_exact.cpp.

References Vector_exact::dim(), Vector::dim(), and Vector_exact::val.

Vector_exact & operator-= ( const SVector & vec )

vector difference

Definition at line 152 of file vector_exact.cpp.

References Vector_exact::dim(), SVector::index(), SVector::size(), Vector_exact::val, and SVector::value().

Vector_exact & operator= ( const Vector_exact & vec )

Assignment operator.

Definition at line 26 of file vector_exact.cpp.

References Vector_exact::dim(), Vector_exact::dimen, Vector_exact::isConsistent(), and Vector_exact::val.

Referenced by DVector_exact::DVector_exact(), and DVector_exact::operator=().

Vector_exact & operator= ( const Vector & vec )

Assignment operator.

Definition at line 61 of file vector_exact.cpp.

References Vector_exact::dim(), Vector::dim(), Vector_exact::dimen, Vector_exact::isConsistent(), and Vector_exact::val.

Vector_exact & operator= ( const SVector & vec )

Assignment operator.

Assigning a SVector to a Vector using operator=() will set all values to 0 except the nonzeros of vec. This is diffent in method assign().

Definition at line 75 of file vector_exact.cpp.

References Vector_exact::clear(), Vector_exact::dim(), SVector::index(), Vector_exact::isConsistent(), SVector::size(), Vector_exact::val, and SVector::value().

MpqReal& operator[] ( int n )

return n 'th value by reference

Definition at line 98 of file vector_exact.h.

References Vector_exact::dimen, and Vector_exact::val.

MpqReal operator[] ( int n ) const

return n 'th value

Definition at line 105 of file vector_exact.h.

References Vector_exact::dimen, and Vector_exact::val.

Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	s,
		const Vector_exact &	vec
	)

friend

output operator.

Definition at line 231 of file vector_exact.cpp.

bool operator==	(	const Vector_exact &	vec1,
		const Vector_exact &	vec2
	)

friend

equality operator

Definition at line 43 of file vector_exact.cpp.

Member Data Documentation

int dimen

protected

dimension of vector

Definition at line 49 of file vector_exact.h.

Referenced by Vector_exact::clear(), Vector_exact::dim(), DVector_exact::DVector_exact(), DVector_exact::isConsistent(), Vector_exact::multAdd(), Vector_exact::operator+=(), Vector_exact::operator=(), Vector_exact::operator[](), DVector_exact::reDim(), DVector_exact::reSize(), and Vector_exact::Vector_exact().

protected

values of a vector

The memory block pointed to by val must at least have size dimen * sizeof(Real)

Definition at line 54 of file vector_exact.h.

Referenced by Vector_exact::clear(), DVector_exact::DVector_exact(), Vector_exact::get_const_ptr(), Vector_exact::get_ptr(), DVector_exact::isConsistent(), Vector_exact::isConsistent(), Vector_exact::maxAbs(), Vector_exact::minAbs(), Vector_exact::multAdd(), Vector_exact::operator*=(), Vector_exact::operator+=(), Vector_exact::operator-=(), Vector_exact::operator=(), Vector_exact::operator[](), and DVector_exact::reSize().