unchecked_sub in core::intrinsics - Rust
Description: Returns the result of an unchecked subtraction, resulting in undefined behavior when `x - y > T::MAX` or `x - y < T::MIN`.

## unchecked_sub

# Function unchecked_sub

Source

    pub const unsafe fn unchecked_sub<T: Copy>(x: T, y: T) -> T

🔬This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Returns the result of an unchecked subtraction, resulting in undefined behavior when `x - y > T::MAX` or `x - y < T::MIN`.

The stable counterpart of this intrinsic is `unchecked_sub` on the various integer types, such as `u16::unchecked_sub` and `i64::unchecked_sub`.