Expand description
This library provides a data view for reading and writing data in a byte array.
It also works with [no_std] environment.
By default, this library uses little endian as the default endianness.
But you can override the endianness by using BE (for big endian) or NE (for native endian) in fetures flag.
For example, if you want to use big endian,
[dependencies]
data-view = { version = "5", features = ["BE"] }Examples
Add this to your project’s Cargo.toml file.
[dependencies]
data-view = "5"DataView
use data_view::DataView;
let mut view = DataView::new([0; 8]);
view.write(12_u16);
view.write(34_u16);
view.write(5678_u32);
view.offset = 0;
assert_eq!(view.read::<u16>(), Some(12));
assert_eq!(view.read::<u16>(), Some(34));
assert_eq!(view.read::<u32>(), Some(5678));View
use data_view::View;
let mut buf = [0; 8];
buf.write_at(0, 42_u16);
buf.write_at(2, 123_u32);
assert_eq!(buf.read_at::<u16>(0), Some(42));
assert_eq!(buf.read_at::<u32>(2), Some(123));Alternative
There are many alternative libraries,
But I didn’t like API of these libraries.
The have a lot of functions for reading and writing data. For example, read_u16, read_u32, write_i64, And so on…
Luckily, Rust support Generics function, This is why this library exists.
Structs
This struct represents a data view for reading and writing data in a byte array. When read/write, This increment current offset by the size of the value.