This graph is a mix between the ReverseArcListGraph and the ReverseArcStaticGraph. More...

#include <graph.h>

Inheritance diagram for util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >:

Collaboration diagram for util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >:

[legend]

Classes
class	IncomingArcIterator

class	OppositeIncomingArcIterator

class	OutgoingArcIterator

class	OutgoingOrOppositeIncomingArcIterator

Public Types
typedef NodeIndexType	NodeIndex
	Typedef so you can use Graph::NodeIndex and Graph::ArcIndex to be generic but also to improve the readability of your code. More...

typedef ArcIndexType	ArcIndex

Public Member Functions
	ReverseArcMixedGraph ()

	ReverseArcMixedGraph (NodeIndexType num_nodes, ArcIndexType arc_capacity)

ArcIndexType	OutDegree (NodeIndexType node) const

ArcIndexType	InDegree (NodeIndexType node) const

BeginEndWrapper< OutgoingArcIterator >	OutgoingArcs (NodeIndexType node) const

BeginEndWrapper< IncomingArcIterator >	IncomingArcs (NodeIndexType node) const

BeginEndWrapper< OutgoingOrOppositeIncomingArcIterator >	OutgoingOrOppositeIncomingArcs (NodeIndexType node) const

BeginEndWrapper< OppositeIncomingArcIterator >	OppositeIncomingArcs (NodeIndexType node) const

BeginEndWrapper< OutgoingArcIterator >	OutgoingArcsStartingFrom (NodeIndexType node, ArcIndexType from) const

BeginEndWrapper< IncomingArcIterator >	IncomingArcsStartingFrom (NodeIndexType node, ArcIndexType from) const

BeginEndWrapper< OutgoingOrOppositeIncomingArcIterator >	OutgoingOrOppositeIncomingArcsStartingFrom (NodeIndexType node, ArcIndexType from) const

BeginEndWrapper< OppositeIncomingArcIterator >	OppositeIncomingArcsStartingFrom (NodeIndexType node, ArcIndexType from) const

BeginEndWrapper< NodeIndexType const * >	operator[] (NodeIndexType node) const
	This loops over the heads of the OutgoingArcs(node). More...

ArcIndexType	OppositeArc (ArcIndexType arc) const

NodeIndexType	Head (ArcIndexType arc) const

NodeIndexType	Tail (ArcIndexType arc) const

void	ReserveArcs (ArcIndexType bound) override

void	AddNode (NodeIndexType node)

ArcIndexType	AddArc (NodeIndexType tail, NodeIndexType head)

void	Build ()

void	Build (std::vector< ArcIndexType > *permutation)

NodeIndexType	num_nodes () const
	Returns the number of valid nodes in the graph. More...

ArcIndexType	num_arcs () const
	Returns the number of valid arcs in the graph. More...

IntegerRange< NodeIndex >	AllNodes () const
	Allows nice range-based for loop: for (const NodeIndex node : graph.AllNodes()) { ... More...

IntegerRange< ArcIndex >	AllForwardArcs () const

bool	IsNodeValid (NodeIndexType node) const
	Returns true if the given node is a valid node of the graph. More...

bool	IsArcValid (ArcIndexType arc) const
	Returns true if the given arc is a valid arc of the graph. More...

NodeIndexType	node_capacity () const
	Capacity reserved for future nodes, always >= num_nodes_. More...

ArcIndexType	arc_capacity () const
	Capacity reserved for future arcs, always >= num_arcs_. More...

virtual void	ReserveNodes (NodeIndexType bound)
	Changes the graph capacities. More...

void	Reserve (NodeIndexType node_capacity, ArcIndexType arc_capacity)

void	FreezeCapacities ()
	FreezeCapacities() makes any future attempt to change the graph capacities crash in DEBUG mode. More...

void	GroupForwardArcsByFunctor (const A &a, B *b)

ArcIndexType	max_end_arc_index () const

Static Public Attributes
static const NodeIndexType	kNilNode
	Constants that will never be a valid node or arc. More...

static const ArcIndexType	kNilArc

Protected Member Functions
void	ComputeCumulativeSum (std::vector< ArcIndexType > *v)
	Functions commented when defined because they are implementation details. More...

void	BuildStartAndForwardHead (SVector< NodeIndexType > head, std::vector< ArcIndexType > start, std::vector< ArcIndexType > *permutation)
	Given the tail of arc #i in (head)[i] and the head of arc #i in (head)[~i]. More...

Protected Attributes
NodeIndexType	num_nodes_

NodeIndexType	node_capacity_

ArcIndexType	num_arcs_

ArcIndexType	arc_capacity_

bool	const_capacities_

Detailed Description

template<typename NodeIndexType = int32, typename ArcIndexType = int32>
class util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >

This graph is a mix between the ReverseArcListGraph and the ReverseArcStaticGraph.

It uses less memory:

It takes 2 * ArcIndexType * node_capacity()
- (2 * NodeIndexType + ArcIndexType) * arc_capacity() memory.
If the ArcIndexPermutation is needed, then an extra ArcIndexType * arc_capacity() is needed for it.

Definition at line 635 of file graph.h.

Member Typedef Documentation

◆ ArcIndex

typedef ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::ArcIndex

inherited

Definition at line 190 of file graph.h.

◆ NodeIndex

typedef NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::NodeIndex

inherited

Typedef so you can use Graph::NodeIndex and Graph::ArcIndex to be generic but also to improve the readability of your code.

We also recommend that you define a typedef ... Graph; for readability.

Definition at line 189 of file graph.h.

Constructor & Destructor Documentation

◆ ReverseArcMixedGraph() [1/2]

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::ReverseArcMixedGraph ( )

inline

Definition at line 646 of file graph.h.

◆ ReverseArcMixedGraph() [2/2]

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::ReverseArcMixedGraph	(	NodeIndexType	num_nodes,
		ArcIndexType	arc_capacity
	)

inline

Definition at line 647 of file graph.h.

Member Function Documentation

◆ AddArc()

template<typename NodeIndexType , typename ArcIndexType >

ArcIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::AddArc	(	NodeIndexType	tail,
		NodeIndexType	head
	)

We inverse head and tail here because it is more convenient this way during build time, see Build().

Definition at line 2003 of file graph.h.

◆ AddNode()

template<typename NodeIndexType , typename ArcIndexType >

void util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::AddNode ( NodeIndexType node )

Definition at line 1995 of file graph.h.

◆ AllForwardArcs()

IntegerRange< ArcIndexType > util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::AllForwardArcs ( ) const

inherited

Definition at line 935 of file graph.h.

◆ AllNodes()

IntegerRange< NodeIndexType > util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::AllNodes ( ) const

inherited

Allows nice range-based for loop: for (const NodeIndex node : graph.AllNodes()) { ...

BaseGraph implementation -------------------------------------------------—.

} for (const ArcIndex arc : graph.AllForwardArcs()) { ... }

Definition at line 929 of file graph.h.

◆ arc_capacity()

ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::arc_capacity ( ) const

inherited

Capacity reserved for future arcs, always >= num_arcs_.

Todo:: (user): Same questions as the ones in node_capacity().

Definition at line 959 of file graph.h.

◆ Build() [1/2]

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

void util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::Build ( )

inline

Definition at line 693 of file graph.h.

◆ Build() [2/2]

template<typename NodeIndexType , typename ArcIndexType >

void util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::Build ( std::vector< ArcIndexType > * permutation )

Fill tails.

Fill information for iterating over reverse arcs.

Definition at line 2017 of file graph.h.

◆ BuildStartAndForwardHead()

void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::BuildStartAndForwardHead	(	SVector< NodeIndexType > *	head,
		std::vector< ArcIndexType > *	start,
		std::vector< ArcIndexType > *	permutation
	)

protectedinherited

Given the tail of arc #i in (*head)[i] and the head of arc #i in (*head)[~i].

Reorder the arc by increasing tail.
Put the head of the new arc #i in (*head)[i].
Put in start[i] the index of the first arc with tail >= i.
Update "permutation" to reflect the change, unless it is NULL.

Computes the outgoing degree of each nodes and check if we need to permute something or not. Note that the tails are currently stored in the positive range of the SVector head.

Abort early if we do not need the permutation: we only need to put the heads in the positive range.

Computes the forward arc permutation.

Note: this temporarily alters the start vector.

Restore in (*start)[i] the index of the first arc with tail >= i.

Permutes the head into their final position in head. We do not need the tails anymore at this point.

Definition at line 995 of file graph.h.

◆ ComputeCumulativeSum()

void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::ComputeCumulativeSum ( std::vector< ArcIndexType > * v )

protectedinherited

Functions commented when defined because they are implementation details.

Computes the cummulative sum of the entry in v.

We only use it with in/out degree distribution, hence the Check() at the end.

Definition at line 978 of file graph.h.

◆ FreezeCapacities()

void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::FreezeCapacities ( )

inherited

FreezeCapacities() makes any future attempt to change the graph capacities crash in DEBUG mode.

Todo:: (user): Only define this in debug mode at the cost of having a lot of ifndef NDEBUG all over the place? remove the function completely ?

Definition at line 966 of file graph.h.

◆ GroupForwardArcsByFunctor()

void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::GroupForwardArcsByFunctor	(	const A &	a,
		B *	b
	)

inlineinherited

Todo:: (user): remove the public functions below.

They are just here during the transition from the old ebert_graph api to this new graph api.

Definition at line 264 of file graph.h.

◆ Head()

template<typename NodeIndexType , typename ArcIndexType >

NodeIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::Head ( ArcIndexType arc ) const

Todo:: (user): support Head() and Tail() before Build(), like StaticGraph<>.

Definition at line 1972 of file graph.h.

◆ IncomingArcs()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<IncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::IncomingArcs ( NodeIndexType node ) const

◆ IncomingArcsStartingFrom()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<IncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::IncomingArcsStartingFrom	(	NodeIndexType	node,
		ArcIndexType	from
	)		const

◆ InDegree()

template<typename NodeIndexType , typename ArcIndexType >

ArcIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::InDegree ( NodeIndexType node ) const

Definition at line 1949 of file graph.h.

◆ IsArcValid()

bool util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::IsArcValid ( ArcIndexType arc ) const

inlineinherited

Returns true if the given arc is a valid arc of the graph.

Note: the arc validity range changes for graph with reverse arcs.

Definition at line 219 of file graph.h.

◆ IsNodeValid()

bool util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::IsNodeValid ( NodeIndexType node ) const

inlineinherited

Returns true if the given node is a valid node of the graph.

Definition at line 213 of file graph.h.

◆ max_end_arc_index()

ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::max_end_arc_index ( ) const

inlineinherited

Definition at line 267 of file graph.h.

◆ node_capacity()

NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::node_capacity ( ) const

inherited

Capacity reserved for future nodes, always >= num_nodes_.

Todo:: (user): Is it needed? remove completely? return the real capacities at the cost of having a different implementation for each graphs?

Definition at line 951 of file graph.h.

◆ num_arcs()

ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::num_arcs ( ) const

inlineinherited

Returns the number of valid arcs in the graph.

Definition at line 204 of file graph.h.

◆ num_nodes()

NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::num_nodes ( ) const

inlineinherited

Returns the number of valid nodes in the graph.

Definition at line 201 of file graph.h.

◆ operator[]()

template<typename NodeIndexType , typename ArcIndexType >

BeginEndWrapper< NodeIndexType const * > util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::operator[] ( NodeIndexType node ) const

This loops over the heads of the OutgoingArcs(node).

It is just a more convenient way to achieve this. Moreover this interface is used by some graph algorithms.

Definition at line 1958 of file graph.h.

◆ OppositeArc()

template<typename NodeIndexType , typename ArcIndexType >

ArcIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OppositeArc ( ArcIndexType arc ) const

Definition at line 1965 of file graph.h.

◆ OppositeIncomingArcs()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OppositeIncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OppositeIncomingArcs ( NodeIndexType node ) const

◆ OppositeIncomingArcsStartingFrom()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OppositeIncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OppositeIncomingArcsStartingFrom	(	NodeIndexType	node,
		ArcIndexType	from
	)		const

◆ OutDegree()

template<typename NodeIndexType , typename ArcIndexType >

ArcIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OutDegree ( NodeIndexType node ) const

Definition at line 1943 of file graph.h.

◆ OutgoingArcs()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OutgoingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OutgoingArcs ( NodeIndexType node ) const

◆ OutgoingArcsStartingFrom()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OutgoingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OutgoingArcsStartingFrom	(	NodeIndexType	node,
		ArcIndexType	from
	)		const

◆ OutgoingOrOppositeIncomingArcs()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OutgoingOrOppositeIncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OutgoingOrOppositeIncomingArcs ( NodeIndexType node ) const

◆ OutgoingOrOppositeIncomingArcsStartingFrom()

template<typename NodeIndexType = int32, typename ArcIndexType = int32>

BeginEndWrapper<OutgoingOrOppositeIncomingArcIterator> util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::OutgoingOrOppositeIncomingArcsStartingFrom	(	NodeIndexType	node,
		ArcIndexType	from
	)		const

◆ Reserve()

void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::Reserve	(	NodeIndexType	node_capacity,
		ArcIndexType	arc_capacity
	)

inlineinherited

Definition at line 247 of file graph.h.

◆ ReserveArcs()

template<typename NodeIndexType , typename ArcIndexType >

void util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::ReserveArcs ( ArcIndexType bound )

overridevirtual

Reimplemented from util::BaseGraph< NodeIndexType, ArcIndexType, true >.

Definition at line 1987 of file graph.h.

◆ ReserveNodes()

virtual void util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::ReserveNodes ( NodeIndexType bound )

inlinevirtualinherited

Changes the graph capacities.

The functions will fail in debug mode if:

const_capacities_ is true.
A valid node does not fall into the new node range.
A valid arc does not fall into the new arc range. In non-debug mode, const_capacities_ is ignored and nothing will happen if the new capacity value for the arcs or the nodes is too small.

Reimplemented in util::ReverseArcListGraph< NodeIndexType, ArcIndexType >.

Definition at line 235 of file graph.h.

◆ Tail()

template<typename NodeIndexType , typename ArcIndexType >

NodeIndexType util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >::Tail ( ArcIndexType arc ) const

Definition at line 1980 of file graph.h.

Member Data Documentation

◆ arc_capacity_

ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::arc_capacity_

protectedinherited

Definition at line 279 of file graph.h.

◆ const_capacities_

bool util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::const_capacities_

protectedinherited

Definition at line 280 of file graph.h.

◆ kNilArc

const ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::kNilArc

staticinherited

Definition at line 259 of file graph.h.

◆ kNilNode

const NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::kNilNode

staticinherited

Constants that will never be a valid node or arc.

They are the maximum possible node and arc capacity.

Definition at line 258 of file graph.h.

◆ node_capacity_

NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::node_capacity_

protectedinherited

Definition at line 277 of file graph.h.

◆ num_arcs_

ArcIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::num_arcs_

protectedinherited

Definition at line 278 of file graph.h.

◆ num_nodes_

NodeIndexType util::BaseGraph< NodeIndexType, ArcIndexType, HasReverseArcs >::num_nodes_

protectedinherited

Definition at line 276 of file graph.h.

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

graph.h

Classes

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

template<typename NodeIndexType = int32, typename ArcIndexType = int32> class util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >

Member Typedef Documentation

◆ ArcIndex

◆ NodeIndex

Constructor & Destructor Documentation

◆ ReverseArcMixedGraph() [1/2]

◆ ReverseArcMixedGraph() [2/2]

Member Function Documentation

◆ AddArc()

◆ AddNode()

◆ AllForwardArcs()

◆ AllNodes()

◆ arc_capacity()

◆ Build() [1/2]

◆ Build() [2/2]

◆ BuildStartAndForwardHead()

◆ ComputeCumulativeSum()

◆ FreezeCapacities()

◆ GroupForwardArcsByFunctor()

◆ Head()

◆ IncomingArcs()

◆ IncomingArcsStartingFrom()

◆ InDegree()

◆ IsArcValid()

◆ IsNodeValid()

◆ max_end_arc_index()

◆ node_capacity()

◆ num_arcs()

◆ num_nodes()

◆ operator[]()

◆ OppositeArc()

◆ OppositeIncomingArcs()

◆ OppositeIncomingArcsStartingFrom()

◆ OutDegree()

◆ OutgoingArcs()

◆ OutgoingArcsStartingFrom()

◆ OutgoingOrOppositeIncomingArcs()

◆ OutgoingOrOppositeIncomingArcsStartingFrom()

◆ Reserve()

◆ ReserveArcs()

◆ ReserveNodes()

◆ Tail()

Member Data Documentation

◆ arc_capacity_

◆ const_capacities_

◆ kNilArc

◆ kNilNode

◆ node_capacity_

◆ num_arcs_

◆ num_nodes_

template<typename NodeIndexType = int32, typename ArcIndexType = int32>
class util::ReverseArcMixedGraph< NodeIndexType, ArcIndexType >