const-addrs

A set of macros for creating networking types from a string literal.

Each of the macros will parse using the FromStr implementation for the appropriate type. The generated code will use a const constructor for the type, if one exists.

use std::net::Ipv4Addr;
use const_addrs::ip4;

let a = ip4!("192.168.1.1");
let b = Ipv4Addr::new(192,168,1,1);
assert_eq!(a, b);

And turns invalid strings into compile-time errors:

error: invalid IPv4 address syntax
  --> bad.rs:10:18
   |
10 |     let a = ip4!("192.1681.1");
   |                  ^^^^^^^^^^^^

There are macros for:

Note: using ipnetwork::* types requires you to have the ipnetwork crate in your depdencies. These types can be enabled with the ipnet feature. default)

Note: using macaddr::* requires the macaddr crate in your depdencies. These types can be enabled with the mac feature.

When possible the expanded macro uses const constructors, allowing for simple string representations of network types without the cost of runtime parsing.