lightning 0.2.2

A Complete Bitcoin Lightning Library in Rust. Handles the core functionality of the Lightning Network, allowing clients to implement custom wallet, chain interactions, storage and network logic without enforcing a specific runtime.
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// This file is Copyright its original authors, visible in version control
// history.
//
// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
// You may not use this file except in accordance with one or both of these
// licenses.

#[inline]
pub fn slice_to_be48(v: &[u8]) -> u64 {
	((v[0] as u64) << 8 * 5)
		| ((v[1] as u64) << 8 * 4)
		| ((v[2] as u64) << 8 * 3)
		| ((v[3] as u64) << 8 * 2)
		| ((v[4] as u64) << 8 * 1)
		| ((v[5] as u64) << 8 * 0)
}
#[inline]
pub fn be48_to_array(u: u64) -> [u8; 6] {
	assert!(u & 0xffff_0000_0000_0000 == 0);
	let mut v = [0; 6];
	v[0] = ((u >> 8 * 5) & 0xff) as u8;
	v[1] = ((u >> 8 * 4) & 0xff) as u8;
	v[2] = ((u >> 8 * 3) & 0xff) as u8;
	v[3] = ((u >> 8 * 2) & 0xff) as u8;
	v[4] = ((u >> 8 * 1) & 0xff) as u8;
	v[5] = ((u >> 8 * 0) & 0xff) as u8;
	v
}

#[cfg(test)]
mod tests {
	use super::*;

	#[test]
	fn test_all() {
		assert_eq!(slice_to_be48(&[0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad]), 0xdeadbeef1bad);
		assert_eq!(be48_to_array(0xdeadbeef1bad), [0xde, 0xad, 0xbe, 0xef, 0x1b, 0xad]);
	}
}