nonmax provides types similar to the std NonZero* types, but instead requires
that their values are not the maximum for their type. This ensures that
Option<NonMax*> is no larger than NonMax*.
nonmax supports every type that has a corresponding non-zero variant in the standard library:
NonMaxI8NonMaxI16NonMaxI32NonMaxI64NonMaxI128NonMaxIsizeNonMaxU8NonMaxU16NonMaxU32NonMaxU64NonMaxU128NonMaxUsize
use nonmax::{NonMaxI16, NonMaxU8};
let value = NonMaxU8::new(16).expect("16 should definitely fit in a u8");
assert_eq!(value.get(), 16);
assert_eq!(std::mem::size_of_val(&value), 1);
let signed = NonMaxI16::new(i16::min_value()).expect("minimum values are fine");
assert_eq!(signed.get(), i16::min_value());
assert_eq!(std::mem::size_of_val(&signed), 2);
let oops = NonMaxU8::new(255);
assert_eq!(oops, None);-
std(default): implements [std::error::Error] for [ParseIntError] and [TryFromIntError]. Disable this feature for#![no_std]support. -
serde: implements theSerializeandDeserializetraits fromserde.
nonmax supports Rust 1.47.0 and newer. Until this library reaches 1.0, changes to the MSRV will require major version bumps. After 1.0, MSRV changes will only require minor version bumps, but will need significant justification.
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
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.