Function median3

fn median3<T, F: FnMut(&T, &T) -> bool>(
    a: &T,
    b: &T,
    c: &T,
    is_less: &mut F,
) -> *const T

🔬This is a nightly-only experimental API. (slice_internals)

Calculates the median of 3 elements.

SAFETY: a, b, c must be valid initialized elements.