Cargo Features

unicode-width-16 has no features set by default.

[dependencies]
unicode-width-16 = { version = "0.1.0", features = ["no_std", "rustc-dep-of-std", "bench"] }
no_std
rustc-dep-of-std = compiler_builtins, core, std
bench

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.

std rustc-dep-of-std?

Enables rustc-std-workspace-std

core rustc-dep-of-std?

Enables rustc-std-workspace-core

compiler_builtins rustc-dep-of-std?