Function core::const: 1.57.0 · source ·
pub const unsafe extern "rust-intrinsic" fn unreachable() -> !
🔬This is a nightly-only experimental API. (
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