Cargo Features

mem_cmp has no features set by default.

[dependencies]
mem_cmp = { version = "0.1.4", features = ["avx", "nightly", "specialization"] }
avx = simd
nightly = specialization
specialization nightly?

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.

simd avx?