cast

Ergonomic, checked cast functions for primitive types

rust
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

• Apache License, Version 2.0 (LICENSE-APACHE or

• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

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.