Cargo Features

halfbit has no features set by default.

[dependencies]
halfbit = { version = "0.0.5", features = ["use-std", "nightly", "use-libc"] }
use-std

Affects stream::std_file

nightly
use-libc = libc

Affects mm::libc_malloc

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.

libc use-libc?