jerry73204 / nonzero

nonzero: Statically Checked Non-Zero Integers

The crate provides the nonzero! macro that converts an integer to NonZero{Usize,Isize,...} types. The conversion is done statically without extra runtime cost, and rejects zeros in compile-time.

[ docs.rs | crates.io ]

Example

use nonzero::nonzero as nz;
use std::num::{NonZeroI32, NonZeroUsize};

let safe_seven: NonZeroUsize = nz!(7usize);
let negative_one: NonZeroI32 = nz!(-1i32);

License

MIT license. See license file.