Function redox::intrinsics::u8_sub_with_overflow

pub unsafe extern "rust-intrinsic" fn u8_sub_with_overflow(x: u8, y: u8) -> (u8, bool)

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

Performs checked u8 subtraction.