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#![deny(missing_docs, warnings)] #![no_std] //! `panic!()` in debug builds, optimization hint in release. #[doc(hidden)] pub mod _internal { pub use core::hint::unreachable_unchecked; } #[macro_export] /// `panic!()` in debug builds, optimization hint in release. /// /// Example: /// /// ``` /// use debug_unreachable::debug_unreachable; /// /// fn main() { /// if 0 > 100 { /// // Can't happen! /// unsafe { debug_unreachable!() } /// } else { /// println!("Good, 0 <= 100."); /// } /// } /// ``` macro_rules! debug_unreachable { () => { debug_unreachable!("entered unreachable code") }; ($e:expr) => { if cfg!(debug_assertions) { panic!($e) } else { $crate::_internal::unreachable_unchecked() } } }