LpColReader Class Reference
[Tools for Lp and Mip solvers]

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Detailed Description

This class is an Lp variable item reader for Lemon IO. It makes possible to store lp variables in lemon file. The usage of this class is very simple:

      Graph graph;
      Lp lp;
      Graph::EdgeMap<Lp::Col> var(graph); 
     
      GraphReader<Graph> reader(cin, graph);
      reader.readEdgeMap("lpvar", var, LpColReader(lp));
      reader.run();

If there is already a variable with the same name in the lp then it will be used for the return value. If there is no such variable then it will be constructed. The file could contain '-' as value which means that no lp variable associated to the current item and in this case INVALID will be returned. #include <lemon/lp_utils.h>

List of all members.

Public Types
typedef LpSolverBase::Col	Value
Public Member Functions
	LpColReader (LpSolverBase &_lp)
void	read (std::istream &is, LpSolverBase::Col &col) const
	Reads an lp variable from the given stream.

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Member Typedef Documentation

typedef LpSolverBase::Col Value

The value type of reader.

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Constructor & Destructor Documentation

LpColReader

(

LpSolverBase &

_lp

)

[inline]

Constructor for the reader.

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Member Function Documentation

void read	(	std::istream &	is,
		LpSolverBase::Col &	col
	)			const [inline]

Reads an lp variable string from the given stream.