graph

Creates a simple graph, and prints the degree of each vertex.

package main

import (
	"fmt"

	"gopkg.in/karalabe/cookiejar.v2/graph"
)

func main() {
	// Create a star shaped 5 vertex graph
	g := graph.New(5)
	g.Connect(0, 2)
	g.Connect(0, 3)
	g.Connect(1, 3)
	g.Connect(1, 4)
	g.Connect(2, 4)

	// For each vertex, count the outgoing edges
	for v := 0; v < g.Vertices(); v++ {
		degree := 0
		g.Do(v, func(peer interface{}) {
			degree++
		})
		fmt.Printf("%v: %v\n", v, degree)
	}
}

Output:

0: 2
1: 2
2: 2
3: 2
4: 2