Function std::intrinsics::black_box

pub extern "rust-intrinsic" fn black_box<T>(dummy: T) -> T

???? This is a nightly-only experimental API. (core_intrinsics)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

See documentation of std::hint::black_box for details.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/intrinsics/fn.black_box.html