pub const unsafe extern "rust-intrinsic" fn unreachable() -> !🔬This is a nightly-only experimental API. (
core_intrinsics)Expand description
Informs the optimizer that this point in the code is not reachable, enabling further optimizations.
N.B., this is very different from the unreachable!() macro: Unlike the
macro, which panics when it is executed, it is undefined behavior to
reach code marked with this function.
The stabilized version of this intrinsic is core::hint::unreachable_unchecked.