pub unsafe extern "rust-intrinsic" fn unchecked_sub<T>(x: T, y: T) -> T where T: Copy,
Returns the result of an unchecked subtraction, resulting in undefined behavior when x - y > T::MAX
or x - y < T::MIN
.
This intrinsic does not have a stable counterpart.
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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/intrinsics/fn.unchecked_sub.html