CBOR 0x(4+4)9 0x49

“The Concise Binary Object Representation (CBOR) is a data format whose design goals include the possibility of extremely small code size, fairly small message size, and extensibility without the need for version negotiation.”

see rfc8949

Compatibility

The core mod should be fully compatible with rfc8949, but some extensions will not be implemented in this crate, such as datetime, bignum, bigfloat.

The serde mod defines how Rust types should be expressed in CBOR, which is not any standard, so different crate may have inconsistent behavior.

This library is intended to be compatible with serde_cbor, but will not follow some unreasonable designs of serde_cbor.

• cbor4ii will express the unit type as an empty array instead of null. This avoids the problem that serde_cbor cannot distinguish between None and Some(()). see https://github.com/pyfisch/cbor/issues/185
• cbor4ii does not support packed mode, and it may be implemented in future, but it may not be compatible with serde_cbor. If you want packed mode, you should look at bincode.

License

This project is licensed under the MIT license.