Merge "Upgrade rust/crates/cast to 0.3.0" am: a860660912 am: b3daea5e9f am: ce06b14f42

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/cast/+/1833320

Change-Id: Ie2b259ba534588d6e84ab3902c4afb854fb4bb6a
tree: 269a30935e7b77960ca42474e69256d37c326058
  1. .github/
  2. src/
  3. .cargo_vcs_info.json
  4. .gitignore
  5. Android.bp
  6. Cargo.toml
  7. Cargo.toml.orig
  8. CHANGELOG.md
  9. LICENSE-APACHE
  10. LICENSE-MIT
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. OWNERS
  14. README.md
  15. TEST_MAPPING
README.md

crates.io crates.io

cast

Ergonomic, checked cast functions for primitive types

extern crate cast;

// `u8` and `u16` are checked cast functions, use them to cast from any numeric
// primitive to `u8`/`u16` respectively
use cast::{u8, u16, Error};

// Infallible operations, like integer promotion, are equivalent to a normal
// cast with `as`
assert_eq!(u16(0u8), 0u16);

// Everything else will return a `Result` depending on the success of the
// operation
assert_eq!(u8(0u16), Ok(0u8));
assert_eq!(u8(256u16), Err(Error::Overflow));
assert_eq!(u8(-1i8), Err(Error::Underflow));
assert_eq!(u8(1. / 0.), Err(Error::Infinite));
assert_eq!(u8(0. / 0.), Err(Error::NaN));

API docs

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.