LpBase::ColIt Class Reference

Detailed Description

Its usage is quite simple, for example, you can count the number of columns in an LP lp:

int count=0;
for (LpBase::ColIt c(lp); c!=INVALID; ++c) ++count;

#include <lemon/lp_base.h>

Inheritance diagram for LpBase::ColIt:

Public Member Functions
	ColIt ()
	Default constructor.
	ColIt (const LpBase &solver)
	Sets the iterator to the first Col.
	ColIt (const Invalid &)
	Invalid constructor & conversion.
ColIt &	operator++ ()
	Next column.
Public Member Functions inherited from LpBase::Col
	Col ()
	Default constructor.
	Col (const Invalid &)
	Invalid constructor & conversion.
bool	operator== (Col c) const
	Equality operator.
bool	operator!= (Col c) const
	Inequality operator.
bool	operator< (Col c) const
	Artificial ordering operator.

Constructor & Destructor Documentation

ColIt() [1/3]

ColIt ( )

inline

Warning

The default constructor sets the iterator to an undefined value.

ColIt() [2/3]

ColIt ( const LpBase & solver )

inline

Sets the iterator to the first Col.

ColIt() [3/3]

ColIt ( const Invalid & )

inline

Initialize the iterator to be invalid.

See also

Invalid for more details.

Member Function Documentation

operator++()

ColIt & operator++ ( )

inline

Assign the iterator to the next column.