crc32_digest

An implementation of the digest crate's [Digest] and [DynDigest] traits using crc32fast.

If digest is built with the std feature enabled, Crc32 will implement [Write] as well.

Internally, the Crc32 struct provided by this crate implements the [FixedOutput], [Input], and [Reset] traits. A blanket impl of [Digest] and [DynDigest] is provided by digest for types implementing those traits (along with Clone and Default).

Rust 1.32 or newer is required for u32::to_be_bytes.

Usage

```rust use crc32_digest::Crc32; use digest::Digest;

fn main() { let mut crc32 = Crc32::new(); crc32.input(b"hello, world"); let result = crc32.result();

// Get checksum as a byte slice
assert_eq!(result.as_slice(), &[0xff, 0xab, 0x72, 0x3a]);
// Format checksum as a lowercase hexadecimal string
assert_eq!(format!("{:x}", result), "ffab723a");

} ```

Alternatively, Crc32::from_state(state: u32) can be used to create a new Crc32 instance with a specific initial state.