blob: 640071bf23285f10e627002ec1e3698db77afa98 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
# BitReader
BitReader is a helper type to extract strings of bits from a slice of bytes.
[](https://crates.io/crates/bitreader)
[](https://docs.rs/bitreader)
[](https://travis-ci.org/irauta/bitreader)
Here is how you read first a single bit, then three bits and finally four bits from a byte buffer:
use bitreader::BitReader;
let slice_of_u8 = &[0b1000_1111];
let mut reader = BitReader::new(slice_of_u8);
// You obviously should use try! or some other error handling mechanism here
let a_single_bit = reader.read_u8(1).unwrap(); // 1
let more_bits = reader.read_u8(3).unwrap(); // 0
let last_bits_of_byte = reader.read_u8(4).unwrap(); // 0b1111
You can naturally read bits from longer buffer of data than just a single byte.
As you read bits, the internal cursor of BitReader moves on along the stream of bits. Big endian format is assumed when reading the multi-byte values. BitReader supports reading maximum of 64 bits at a time (with read_u64).
## License
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
|
