core::intrinsics::unreachable

pub unsafe extern "rust-intrinsic" fn unreachable() -> !

Unstable (core_intrinsics)

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

[−] Expand description

Tells LLVM that this point in the code is not reachable, enabling further optimizations.

NB: This is very different from the unreachable!() macro!