2.1 KiB
byteorder
This crate provides convenience methods for encoding and decoding numbers in either big-endian or little-endian order.
Dual-licensed under MIT or the UNLICENSE.
Documentation
Installation
This crate works with Cargo and is on
crates.io. Add it to your Cargo.toml
like so:
[dependencies]
byteorder = "1"
If you want to augment existing Read
and Write
traits, then import the
extension methods like so:
use byteorder::{ReadBytesExt, WriteBytesExt, BigEndian, LittleEndian};
For example:
use std::io::Cursor;
use byteorder::{BigEndian, ReadBytesExt};
let mut rdr = Cursor::new(vec![2, 5, 3, 0]);
// Note that we use type parameters to indicate which kind of byte order
// we want!
assert_eq!(517, rdr.read_u16::<BigEndian>().unwrap());
assert_eq!(768, rdr.read_u16::<BigEndian>().unwrap());
no_std
crates
This crate has a feature, std
, that is enabled by default. To use this crate
in a no_std
context, add the following to your Cargo.toml
:
[dependencies]
byteorder = { version = "1", default-features = false }
Minimum Rust version policy
This crate's minimum supported rustc
version is 1.60.0
.
The current policy is that the minimum Rust version required to use this crate
can be increased in minor version updates. For example, if crate 1.0
requires
Rust 1.20.0, then crate 1.0.z
for all values of z
will also require Rust
1.20.0 or newer. However, crate 1.y
for y > 0
may require a newer minimum
version of Rust.
In general, this crate will be conservative with respect to the minimum supported version of Rust.
Alternatives
Note that as of Rust 1.32, the standard numeric types provide built-in methods
like to_le_bytes
and from_le_bytes
, which support some of the same use
cases.