Cargo Features

im has no features set by default.

[dependencies]
im = { version = "15.1.0", features = ["debug", "quickcheck", "rayon", "refpool", "serde", "arbitrary", "proptest"] }
debug

Features from optional dependencies

quickcheck implicit feature

Enables quickcheck

quickcheck:

Automatic property based testing with shrinking

Affects lib::quickcheck

rayon implicit feature

Enables rayon

rayon:

Simple work-stealing parallelism for Rust

refpool implicit feature

Enables refpool

refpool:

Efficient memory pool with reference counting

serde implicit feature

Enables serde

serde:

A generic serialization/deserialization framework

arbitrary implicit feature

Enables arbitrary

arbitrary:

The trait for generating structured data from unstructured data

Affects lib::arbitrary

proptest implicit feature

Enables proptest

proptest:

Hypothesis-like property-based testing and shrinking