Crate num_derive

Procedural macros to derive numeric traits in Rust.

Usage

Add this to your Cargo.toml:

[dependencies]
num-traits = "0.2"
num-derive = "0.2"

Then you can derive traits on your own types:

#[macro_use]
extern crate num_derive;

#[derive(FromPrimitive, ToPrimitive)]
enum Color {
    Red,
    Blue,
    Green,
}

Functions

float	Derives num_traits::Float for newtypes. The inner type must already implement Float.
from_primitive	Derives num_traits::FromPrimitive for simple enums and newtypes.
num	Derives num_traits::Num for newtypes. The inner type must already implement Num.
num_cast	Derives num_traits::NumCast for newtypes. The inner type must already implement NumCast.
num_ops	Derives num_traits::NumOps for newtypes. The inner type must already implement NumOps.
one	Derives num_traits::One for newtypes. The inner type must already implement One.
to_primitive	Derives num_traits::ToPrimitive for simple enums and newtypes.
zero	Derives num_traits::Zero for newtypes. The inner type must already implement Zero.