Luukdegram/ctradix

---

Luukdegram/ctradix.json

{
  "createdAt": "2020-10-06T19:18:27Z",
  "defaultBranch": "master",
  "description": "Comptime radix tree in Zig",
  "fullName": "Luukdegram/ctradix",
  "homepage": "",
  "language": "Zig",
  "name": "ctradix",
  "pushedAt": "2021-10-19T08:24:16Z",
  "stargazersCount": 22,
  "topics": [
    "compiletime",
    "comptime",
    "radix",
    "radix-tree",
    "zig",
    "ziglang"
  ],
  "updatedAt": "2025-01-22T19:13:34Z",
  "url": "https://github.com/Luukdegram/ctradix"
}

ctradix

Comptime radix trie implemented in Zig. This library was experimental to see how feasible it is to implement a comptime radix trie where all data is known at compile time. The main use case for this library is to be used within apple_pie for routing support.

The implementation is based on Hashicorp’s implementation.

For a fast, adaptive radix tree implementation in Zig I’d recommend art.zig.

Example

comptime var radix = RadixTree(u32){};
comptime _ = radix.insert("foo", 1);
comptime _ = radix.insert("bar", 2);

const foo = radix.get("foo");
const bar = radix.getLongestPrefix("barfoo");

std.log.info("{}", .{foo}); //1
std.log.info("{}", .{bar}); //2

Benchmarks

To run the benchmarks, run zig build bench. Note that the benchmark is always ran as ReleaseFast. edit build.zig if you want to enable other build modes as well.

Searches for 300 words, 50.000 times for 3 instances

StringHashMap             0177ms  0175ms  0175ms
StringArrayHashMap        0228ms  0241ms  0241ms
RadixTree                 0393ms  0389ms  0392ms