//! Fitness-function helpers and wrappers.
//!
//! - [`count_true()`] — a simple fitness function that counts the number of `true`
//! genes in a binary chromosome (useful for OneMax-style problems).
//! - [`FitnessFnWrapper`] — a wrapper that stores an `Arc<dyn Fn>` fitness
//! function alongside a chromosome, enabling deferred evaluation.
pub mod cache;
pub mod count_true;
pub mod fitness_fn_wrapper;
pub use cache::FitnessCache;
pub use count_true::count_true;
pub use fitness_fn_wrapper::FitnessFnWrapper;