Crate pw_varint

pw_varint

pw_varint provides support for encoding and decoding variable length integers. Small values require less memory than they do with fixed encoding. Signed integers are first zig-zag encoded to allow small negative numbers to realize the memory savings. For more information see Pigweed’s pw_varint documentation.

The encoding format used is compatible with Protocol Buffers.

Encoding and decoding is provided through the VarintEncode and VarintDecode traits.

Example

use pw_varint::{VarintEncode, VarintDecode};

let mut buffer = [0u8; 64];

let encoded_len = (-1i64).varint_encode(&mut buffer).unwrap();

let (decoded_len, val) = i64::varint_decode(&buffer ).unwrap();

Traits

• VarintDecode
  A trait for objects than can be decoded from a varint.
• VarintEncode
  A trait for objects than can be encoded into a varint.