Graaf  

Functions and types for working with graphs

Graaf is Dutch for

1. graph
2. count
3. dig

This crate is in early alpha. The API is unstable.

Algorithms

Breadth-first search

• algo::bfs::min_distances_single_source
• algo::bfs::min_distances
• algo::bfs::predecessors_single_source
• algo::bfs::predecessors

Dijkstra's algorithm

• algo::dijkstra::min_distances_single_source
• algo::dijkstra::min_distances
• algo::dijkstra::predecessors_single_source
• algo::dijkstra::predecessors

Graph operation traits

These traits are implemented for various graph representations built from standard library containers.

• op::AddEdge adds an edge to an unweighted graph.
• op::AddWeightedEdge adds an edge to a weighted graph.
• op::CountAllEdges counts all edges in a graph.
• op::CountAllVertices counts all vertices in a graph.
• op::EdgeWeight gets the weight of an edge.
• op::Indegree returns the indegree of a vertex.
• op::IsEdge returns whether an edge exists between two vertices.
• op::IterAllEdges iterates over all unweighted edges in a graph.
• op::IterAllWeightedEdges iterates over all weighted edges in a graph.
• op::IterEdges iterates over all unweighted edges of a source vertex.
• op::IterVertices iterates over all vertices in a graph.
• op::IterWeightedEdges iterates over all weighted edges of a source vertex.
• op::Outdegree returns the outdegree of a vertex.
• op::RemoveEdge removes an edge from a graph.

Graph representations

Adjacency list

Unweighted

• Vec<Vec<usize>>
• Vec<HashSet<usize>>
• [Vec<usize>]
• [HashSet<usize>]
• HashMap<usize, Vec<usize>>
• HashMap<usize, HashSet<usize>>

Weighted

• Vec<Vec<(usize, W)>>
• Vec<HashSet<(usize, W)>>
• Vec<HashMap<usize, W>>
• [Vec<(usize, W)>]
• [HashSet<(usize, W)>]
• [HashMap<usize, W>]
• HashMap<usize, Vec<(usize, W)>>
• HashMap<usize, HashSet<(usize, W)>>
• HashMap<usize, HashMap<usize, W>>

Adjacency matrix

Unweighted

• AdjacencyMatrix: an adjacency matrix representation of an unweighted directed graph stored as a bit array.

Edge list

Unweighted

• Vec<(usize, usize)>
• [(usize, usize)]
• HashSet<(usize, usize)>

Weighted

• Vec<(usize, usize, W)>
• [(usize, usize, W)]
• HashSet<(usize, usize, W)>