| commit | 29a0e4509c32ffd24cbeae49c53dcc81050c82bb | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Wed May 10 16:16:22 2023 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Wed May 10 16:16:22 2023 +0000 |
| tree | 7442a329d612499cdc5be0c9b778eae0c2dc76d4 | |
| parent | 34c8e34910b6f88cb6d55b294ee12bd18a611ab2 [diff] | |
| parent | 716f98e399780802432a6f44e9f562c2d82fe628 [diff] |
Snap for 10103804 from 716f98e399780802432a6f44e9f562c2d82fe628 to mainline-tzdata5-release Change-Id: Id947f59364bb46507b7898636ac323239a1ea4a5
BitReader is a helper type to extract strings of bits from a slice of bytes.
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).
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.