Cargo Features

[dependencies]
laza = { version = "0.2.5", default-features = false, features = ["simd", "parallel", "crossbeam"] }
default = parallel

Enable parallel by default

simd

Add SIMD feature flag

parallel default = rayon

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

rayon parallel
crossbeam implicit feature

Enables crossbeam

crossbeam:

Tools for concurrent programming