Function std::intrinsics::saturating_sub

pub extern "rust-intrinsic" fn saturating_sub<T>(a: T, b: T) -> T

🔬 This is a nightly-only experimental API. (core_intrinsics #0)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

Computes a - b, while saturating at numeric bounds. The stabilized versions of this intrinsic are available on the integer primitives via the saturating_sub method. For example, std::u32::saturating_sub