Snap for 11541002 from 6acf04bb2e23da386651bf4b2491f46b74836fa3 to sdk-release

Change-Id: I5b65a4629466efa5f2262de06df91a0f7785b487
tree: 7af162db7ed50bc535901cb51ec5c4bd9b9c3ec7
  1. patches/
  2. src/
  3. tests/
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Android.bp
  7. Cargo.toml
  8. Cargo.toml.orig
  9. cargo_embargo.json
  10. LICENSE-APACHE
  11. LICENSE-MIT
  12. METADATA
  13. MODULE_LICENSE_APACHE2
  14. OWNERS
  15. README.md
  16. RELEASES.md
  17. TEST_MAPPING
README.md

num-derive

crate documentation minimum rustc 1.31 build status

Procedural macros to derive numeric traits in Rust.

Usage

Add this to your Cargo.toml:

[dependencies]
num-traits = "0.2"
num-derive = "0.3"

and this to your crate root:

#[macro_use]
extern crate num_derive;

Then you can derive traits on your own types:

#[derive(FromPrimitive, ToPrimitive)]
enum Color {
    Red,
    Blue,
    Green,
}

Optional features

  • full-syntax — Enables num-derive to handle enum discriminants represented by complex expressions. Usually can be avoided by utilizing constants, so only use this feature if namespace pollution is undesired and compile time doubling is acceptable.

Releases

Release notes are available in RELEASES.md.

Compatibility

The num-derive crate is tested for rustc 1.31 and greater.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.