To compute CRC values by providing the length of bits, expression, reflection, an initial value and a final xor value. It has many built-in CRC functions.
You can use create_crc associated function to create a CRC instance by providing the length of bits, expression, reflection, an initial value and a final xor value. For example, if you want to compute a CRC-24 value.
```rust extern crate crc_any;
use crc_any::CRC;
let mut crc24 = CRC::create_crc(0x0000000000864CFB, 24, 0x0000000000B704CE, 0x0000000000000000, false);
crc24.digest(b"hello");
asserteq!([71, 245, 138].tovec(), crc24.getcrcvecbe()); asserteq!("0x47F58A", &crc24.to_string()); ```
To simplify the usage, there are several common versions of CRC whose computing functions are already built-in.
crc32b in mhash.mhash is a common library which has two weird versions of CRC32 called crc32 and crc32b. crc32 and crc32mhash in this module are crc32b and crc32 in mhash respectively.For instance,
```rust extern crate crc_any;
use crc_any::CRC;
let mut crc64 = CRC::crc64();
crc64.digest(b"hello");
asserteq!([236, 83, 136, 71, 154, 124, 145, 63].tovec(), crc64.getcrcvecbe()); asserteq!("0xEC5388479A7C913F", &crc64.to_string()); ```
After getting a CRC value, you can still use the digest method to continue computing the next CRC values.
Enable the no_std feature to compile this crate without std.
toml
[dependencies.crc-any]
version = "*"
features = ["no_std"]
https://crates.io/crates/crc-any
https://docs.rs/crc-any