tree: fda0a7fa42ee35e0c3051def2d99104499780fc0 [path history] [tgz]
  1. .gitignore
  2. .travis.yml
  3. LICENSE
  4. README.md
  5. edges.go
  6. go.mod
  7. go.sum
  8. iradix.go
  9. iter.go
  10. node.go
  11. raw_iter.go
vendor/github.com/hashicorp/go-immutable-radix/README.md

go-immutable-radix Build Status

Provides the iradix package that implements an immutable radix tree. The package only provides a single Tree implementation, optimized for sparse nodes.

As a radix tree, it provides the following:

  • O(k) operations. In many cases, this can be faster than a hash table since the hash function is an O(k) operation, and hash tables have very poor cache locality.
  • Minimum / Maximum value lookups
  • Ordered iteration

A tree supports using a transaction to batch multiple updates (insert, delete) in a more efficient manner than performing each operation one at a time.

For a mutable variant, see go-radix.

Documentation

The full documentation is available on Godoc.

Example

Below is a simple example of usage

// Create a tree
r := iradix.New()
r, _, _ = r.Insert([]byte("foo"), 1)
r, _, _ = r.Insert([]byte("bar"), 2)
r, _, _ = r.Insert([]byte("foobar"), 2)

// Find the longest prefix match
m, _, _ := r.Root().LongestPrefix([]byte("foozip"))
if string(m) != "foo" {
    panic("should be foo")
}