Cargo Features

DoubleCheckedCell has no features set by default.

[dependencies]
double-checked-cell = { version = "2.1.0", features = ["parking_lot_mutex", "const_fn"] }
parking_lot_mutex const_fn? = parking_lot
const_fn = parking_lot_mutex

Enables nightly of parking_lot ^0.11

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.

parking_lot const_fn? parking_lot_mutex?

Enables parking_lot ^0.11