[rustc.git] / vendor / scroll_derive / examples / main.rs

use scroll_derive::{Pread, Pwrite, IOread, IOwrite, SizeWith};

#[derive(Debug, PartialEq, Pread, Pwrite, IOread, IOwrite, SizeWith)]
#[repr(C)]
struct Data {
    id: u32,
    timestamp: f64,
    arr: [u16; 2],
}

use scroll::{Pread, Pwrite, Cread, LE};

fn main () {
    let bytes = [0xefu8, 0xbe, 0xad, 0xde, 0, 0, 0, 0, 0, 0, 224, 63, 0xad, 0xde, 0xef, 0xbe];
    let data: Data = bytes.pread_with(0, LE).unwrap();
    println!("data: {:?}", &data);
    assert_eq!(data.id, 0xdeadbeefu32);
    let mut bytes2 = vec![0; ::std::mem::size_of::<Data>()];
    bytes2.pwrite_with(data, 0, LE).unwrap();
    let data: Data = bytes.pread_with(0, LE).unwrap();
    let data2: Data = bytes2.pread_with(0, LE).unwrap();
    assert_eq!(data, data2);

    let data: Data = bytes.cread_with(0, LE);
    assert_eq!(data, data2);
}
Commit	Line	Data
f035d41b XL	1	use scroll_derive::{Pread, Pwrite, IOread, IOwrite, SizeWith};
	2
	3	#[derive(Debug, PartialEq, Pread, Pwrite, IOread, IOwrite, SizeWith)]
	4	#[repr(C)]
	5	struct Data {
	6	id: u32,
	7	timestamp: f64,
	8	arr: [u16; 2],
	9	}
	10
	11	use scroll::{Pread, Pwrite, Cread, LE};
	12
	13	fn main () {
	14	let bytes = [0xefu8, 0xbe, 0xad, 0xde, 0, 0, 0, 0, 0, 0, 224, 63, 0xad, 0xde, 0xef, 0xbe];
	15	let data: Data = bytes.pread_with(0, LE).unwrap();
	16	println!("data: {:?}", &data);
	17	assert_eq!(data.id, 0xdeadbeefu32);
	18	let mut bytes2 = vec![0; ::std::mem::size_of::<Data>()];
	19	bytes2.pwrite_with(data, 0, LE).unwrap();
	20	let data: Data = bytes.pread_with(0, LE).unwrap();
	21	let data2: Data = bytes2.pread_with(0, LE).unwrap();
	22	assert_eq!(data, data2);
	23
	24	let data: Data = bytes.cread_with(0, LE);
	25	assert_eq!(data, data2);
	26	}