Cargo Features

[dependencies]
concurrent-queue = { version = "2.5.0", default-features = false, features = ["std", "portable-atomic", "loom"] }
default = std

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

std default

Features from optional dependencies

portable-atomic implicit feature

Enables portable-atomic

portable-atomic:

Portable atomic types including support for 128-bit atomics, atomic float, etc

loom loom implicit feature

Enables loom

loom:

Permutation testing for concurrent code