Function swap_vec_ptr

src/util/low_level.rs:27–35

Pairwise-swap the values pointed to by `lhs` and `rhs`. # Safety `lhs` and `rhs` must have equal length (enforced by debug assert). Each `(lhs[i], rhs[i])` pair must point to valid, properly-aligned `T` locations and must not alias another live reference. `lhs` and `rhs` themselves must point to disjoint memory.

(lhs: &mut [*mut T], rhs: &mut [*mut T])

///   `T` locations and must not alias another live reference.
/// * `lhs` and `rhs` themselves must point to disjoint memory.
pub unsafe fn swap_vec_ptr<T>(lhs: &mut [*mut T], rhs: &mut [*mut T])
where
    T: Copy,
{
    assert_eq!(lhs.len(), rhs.len(), "Should use same length vectors");
    for (&mut l, &mut r) in lhs.iter_mut().zip(rhs.iter_mut()) {
        std::ptr::swap(l, r);
    }
}

/// Dereference every pointer in `pv` and collect the values into a `Vec`.
///