OsiDylpWarmStartBasisDiff Class Reference

A `diff' between two OsiDylpWarmStartBasis objects. More...

#include <OsiDylpWarmStartBasis.hpp>

Inheritance diagram for OsiDylpWarmStartBasisDiff:

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Collaboration diagram for OsiDylpWarmStartBasisDiff:

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List of all members.

Public Member Functions
virtual CoinWarmStartDiff *	clone () const
	`Virtual constructor'
virtual OsiDylpWarmStartBasisDiff &	operator= (const OsiDylpWarmStartBasisDiff &rhs)
	Assignment.
virtual	~OsiDylpWarmStartBasisDiff ()
	Destructor.
Private Member Functions
	OsiDylpWarmStartBasisDiff (int sze, const unsigned int const diffNdxs, const unsigned int const diffVals, const CoinWarmStartBasisDiff *const cwsbd)
	Standard constructor.
	OsiDylpWarmStartBasisDiff ()
	Default constructor.
	OsiDylpWarmStartBasisDiff (const OsiDylpWarmStartBasisDiff &odwsbd)
	Copy constructor.
Private Attributes
int	consze_
	Number of entries (and allocated capacity), in units of `int`.
unsigned int *	condiffNdxs_
	Array of diff indices for constraint status.
unsigned int *	condiffVals_
	Array of diff values for constraint status.
Friends
CoinWarmStartDiff *	OsiDylpWarmStartBasis::generateDiff (const CoinWarmStart *const oldCWS) const
void	OsiDylpWarmStartBasis::applyDiff (const CoinWarmStartDiff *const diff)

Detailed Description

A `diff' between two OsiDylpWarmStartBasis objects.

This class exists in order to hide from the world the details of calculating and representing a `diff' between two OsiDylpWarmStartBasis objects. For convenience, assignment, cloning, and deletion are visible to the world, and default and copy constructors are visible to derived classes. Knowledge of the rest of this structure, and of generating and applying diffs, is restricted to the functions OsiDylpWarmStartBasis::generateDiff() and OsiDylpWarmStartBasis::applyDiff().

The actual data structure is a pair of unsigned int vectors, diffNdxs_ and diffVals_, and a CoinWarmStartBasisDiff object.

Todo:: This is a pretty generic structure, and vector diff is a pretty generic activity. We should be able to convert this to a template.

Todo:: Using unsigned int as the data type for the diff vectors might help to contain the damage when this code is inevitably compiled for 64 bit architectures. But the notion of int as 4 bytes is hardwired into CoinWarmStartBasis, so changes are definitely required.

Definition at line 261 of file OsiDylpWarmStartBasis.hpp.

Constructor & Destructor Documentation

virtual OsiDylpWarmStartBasisDiff::~OsiDylpWarmStartBasisDiff ( ) [inline, virtual]

Destructor.

Definition at line 274 of file OsiDylpWarmStartBasis.hpp.

OsiDylpWarmStartBasisDiff::OsiDylpWarmStartBasisDiff	(	int	sze,
		const unsigned int *const	diffNdxs,
		const unsigned int *const	diffVals,
		const CoinWarmStartBasisDiff *const	cwsbd
	)			`[private]`

Standard constructor.

OsiDylpWarmStartBasisDiff::OsiDylpWarmStartBasisDiff ( ) [inline, private]

Default constructor.

Definition at line 291 of file OsiDylpWarmStartBasis.hpp.

OsiDylpWarmStartBasisDiff::OsiDylpWarmStartBasisDiff ( const OsiDylpWarmStartBasisDiff & odwsbd ) [private]

Copy constructor.

For convenience when copying objects containing OsiDylpWarmStartBasisDiff objects. But consider whether you should be using clone() to retain polymorphism.