core::intrinsics::coverage_unreachable - Rust
Description: API documentation for the Rust `coverage_unreachable` fn in crate `core`.
Keywords: rust, rustlang, rust-lang, coverage_unreachable

# [−][src]Function core::intrinsics::coverage_unreachable

    pub unsafe extern "rust-intrinsic" fn coverage_unreachable(
        start_byte_pos: u32,
        end_byte_pos: u32
    )

🔬 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

This marker identifies a code region to be added to the "coverage map" to indicate source code that can never be reached. (See `coverage_counter_add` for more information.)