num-derive

library0.4.2rscratesunverified

Procedural macros for numeric conversions and operations.

# Cargo.toml
[dependencies]
num-derive = "0.4.2"

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INSTALL

IMPORT

SIG · NUM-DERIVE

num-derive

utilityrustv0.4.2

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

FromPrimitive

✓ use num_derive::FromPrimitive;

Derive FromPrimitive for an enum to convert integers to enum variants.

use num_derive::FromPrimitive; use num_traits::FromPrimitive; #[derive(FromPrimitive)] enum Color { Red = 0, Green = 1, Blue = 2, } fn main() { let color = Color::from_i32(1).unwrap(); println!("{:?}", color); }

Debug

Known issues

gotchaRequires num-traits crate for the trait implementations.

fix

Add num-traits as a dependency.

affects: >=0.3.0

Upgrade

Version history

0.4.2latest on crates.io

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Dependencies

No dependency data recorded yet.

Agent activity

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Resources

githubhttps://github.com/rust-num/num-derive ↗

homepagehttps://github.com/rust-num/num-derive ↗

docshttps://docs.rs/num-derive/ ↗