Cargo Features

[dependencies]
whirlpool = { version = "0.11.0-pre.2", default-features = false, features = ["std", "zeroize"] }
default = std

The std feature is set by default whenever whirlpool is added without default-features = false somewhere in the dependency tree.

std default

Enables std of digest =0.11.0-pre.7

zeroize

Enables zeroize of digest =0.11.0-pre.7

Whirlpool has 3 features without comments.