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rand_macros
====
`#[derive(Rand)]` functionality for the `rand::Rand` trait.
## Usage
Add this to your `Cargo.toml`:
```toml
[dependencies]
rand = "0.4"
rand_macros = "0.2"
```
and this to your crate root:
```rust
extern crate rand;
#[macro_use]
extern crate rand_macros;
```
## Examples
`#[derive(Rand)]` can be used on any `struct` or `enum` where all fields/variants implement `rand::Rand`.
```rust
#[derive(Debug, Rand)]
struct Foo {
x: u16,
y: Option<f64>,
}
#[derive(Debug, Rand)]
enum Bar {
X{x: u8, y: isize},
Y([bool; 4]),
Z,
}
```
Now you can call the `Rng::gen()` function on your custom types.
```rust
use rand::Rng;
let mut rng = rand::thread_rng();
println!("{:?}", rng.gen::<Foo>());
println!("{:?}", rng.gen::<Bar>());
```
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