mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2025-01-18 04:52:54 +01:00
18 lines
551 B
Rust
18 lines
551 B
Rust
|
#![no_std]
|
||
|
|
|
||
|
|
use riot_wrappers::println;
|
||
|
|
use core::fmt::Write;
|
||
|
|
|
||
|
|
riot_wrappers::static_command!(static_hello_world, "hello_world", "Print a greeting", hello_world);
|
||
|
|
|
||
|
|
pub fn hello_world<'a>(_w: &mut impl Write, args: impl IntoIterator<Item=&'a str>) {
|
||
|
|
let mut args = args.into_iter();
|
||
|
|
let commandname = args.next().expect("How was this started without an argv[0]?");
|
||
|
|
|
||
|
|
match args.next() {
|
||
|
|
Some("--help") => println!("Usage: {commandname}"),
|
||
|
|
None => println!("Hello RIOT!"),
|
||
|
|
_ => println!("Invalid argument."),
|
||
|
|
};
|
||
|
|
}
|