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enum-map-derive
enum-map
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README.md

README.md

enum-map

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A library providing enum map providing type safe enum array. It is implemented using regular Rust arrays, so using them is as fast as using regular Rust arrays.

Examples

#[macro_use]
extern crate enum_map;

use enum_map::EnumMap;

#[derive(Debug, EnumMap)]
enum Example {
    A,
    B,
    C,
}

fn main() {
    let mut map = enum_map! {
        Example::A => 1,
        Example::B => 2,
        Example::C => 3,
    };
    map[Example::C] = 4;

    assert_eq!(map[Example::A], 1);

    for (key, &value) in &map {
        println!("{:?} has {} as value.", key, value);
    }
}
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