crc32c 0.5.0

Safe implementation for SSE 4.2 CRC32C instructions, with software fallback
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# CRC32C

[![Crates.io](https://img.shields.io/crates/v/crc32c.svg)](https://crates.io/crates/crc32c)
[![Docs.rs](https://docs.rs/crc32c/badge.svg)](https://docs.rs/crc32c/)
[![Travis](https://travis-ci.org/zowens/crc32c.svg?branch=master)](https://travis-ci.org/zowens/crc32c/)

Rust implementation of the CRC-32-Castagnoli algorithm. If you have SSE 4.2 enabled at compile time, it will only build 
the SSE implementation. Otherwise, it will build both versions, and use `cpuid` to choose the best implementation at run time.

The code is inspired by [Mark Adler's CRC32C](https://stackoverflow.com/questions/17645167/) implementation.

## Usage

First, add this to your `Cargo.toml`:

```toml
[dependencies]
crc32c = "0.5"
```

```rust
extern crate crc32c;

fn main() {
    let message = b"Hello world!";
    let crc = crc32c::crc32c(message);

    println!("hash = {}", crc);
}
```

## License
You may use this code under either the [Apache 2.0 license](https://www.apache.org/licenses/LICENSE-2.0)
or the [MIT license](https://opensource.org/licenses/MIT), at your option.