abacus::ConClass Class Reference

Constraint classification. More...

#include <ogdf/lib/abacus/conclass.h>

Inheritance diagram for abacus::ConClass:

Public Member Functions
	ConClass (const Master *master, bool discrete, bool allVarBinary, bool trivial, bool bound, bool varBound)
	The constructor initializes the constraint classification with.
bool	allVarBinary () const
	Returns true if all variables with nonzero coefficients of the constraint are binary.
bool	trivial () const
	Returns true if the constraint is a bound or a variable upper bound.
Public Member Functions inherited from abacus::AbacusRoot
virtual	~AbacusRoot ()
	The destructor.

Private Attributes
bool	allVarBinary_
	true if all variables are binary.
bool	bound_
	true if the constraint is a bound of the variable.
bool	discrete_
bool	trivial_
	true if it is a bound or a variable lower/upper bound.
bool	varBound_
	true if the constraint is a variable lower/upper bound.

Friends
std::ostream &	operator<< (std::ostream &out, const ConClass &rhs)
	Output operator for constraint classifications.

Additional Inherited Members
Static Public Member Functions inherited from abacus::AbacusRoot
static bool	ascii2bool (const string &str)
	Converts the string str to a boolean value.
static bool	endsWith (const string &str, const string &end)
	Returns true if str ends with end, false otherwise.
static double	fracPart (double x)
	Returns the absolute value of the fractional part of x.
static const char *	onOff (bool value)
	Converts a boolean variable to the strings "on" and "off".

Detailed Description

Constraint classification.

For the generation of knapsack cuts in mixed integer optimization problem, a constraint requires certain attributes about the types of its variables and the structure of the constraint. A rather rudimentary classification is implemented in the class ConClass.

Definition at line 44 of file conclass.h.

Constructor & Destructor Documentation

ConClass()

abacus::ConClass::ConClass ( const Master *  master, bool  discrete, bool  allVarBinary, bool  trivial, bool  bound, bool  varBound  )

inline

The constructor initializes the constraint classification with.

Parameters

master	A pointer to the corresponding master of the optimization.
discrete
allVarBinary	true if all variables are binary
trivial	true if it is a bound or a variable upper bound
bound	true if the constraint is a bound of the variable
varBound	true if the constraint is a variable upper bound

Definition at line 56 of file conclass.h.

Member Function Documentation

allVarBinary()

bool abacus::ConClass::allVarBinary ( ) const

inline

Returns true if all variables with nonzero coefficients of the constraint are binary.

Definition at line 75 of file conclass.h.

trivial()

bool abacus::ConClass::trivial ( ) const

inline

Returns true if the constraint is a bound or a variable upper bound.

Definition at line 78 of file conclass.h.

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream &  out, const ConClass &  rhs  )

friend

Output operator for constraint classifications.

Member Data Documentation

allVarBinary_

bool abacus::ConClass::allVarBinary_

private

true if all variables are binary.

Definition at line 86 of file conclass.h.

bound_

bool abacus::ConClass::bound_

private

true if the constraint is a bound of the variable.

Definition at line 92 of file conclass.h.

discrete_

bool abacus::ConClass::discrete_

private

Definition at line 83 of file conclass.h.

trivial_

bool abacus::ConClass::trivial_

private

true if it is a bound or a variable lower/upper bound.

Definition at line 89 of file conclass.h.

varBound_

bool abacus::ConClass::varBound_

private

true if the constraint is a variable lower/upper bound.

Definition at line 95 of file conclass.h.

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The documentation for this class was generated from the following file:

• include/ogdf/lib/abacus/conclass.h