#random #match #choose #pick

no-std random-branch

Provides a macro to select a random branch like match

3 releases

0.1.1 Apr 8, 2021
0.1.0 Apr 7, 2021

#1294 in Algorithms

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1,222 downloads per month

MIT/Apache

11KB
67 lines

Random Branch

Crates.io Documentation

Provides a macro to select a random branch.

This crate provides the branch and branch_using macro, which will execute randomly one of the given expressions.

It is maybe best visualized by the following example:

branch!(
    println!("First line."),
    println!("Second line?"),
    println!("Third line!"),
);

This will be turned into something similar to this:

match rand::thread_rng().gen_range(0..3) {
    0 => println!("First line."),
    1 => println!("Second line?"),
    2 => println!("Third line!"),
    _ => unreachable!(),
}

For more details see branch and branch_using. The basic difference between them is, that branch uses rand::thread_rng() whereas branch_using uses the the given rand::Rng.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~240–680KB
~12K SLoC