Function safemem::copy

pub fn copy<T: Copy>(slice: &mut [T],
                     src_idx: usize,
                     dest_idx: usize,
                     len: usize)

Copy len elements from src_idx to dest_idx. Ranges may overlap.

Safe wrapper for memmove()/std::ptr::copy().

Panics

• If either src_idx or dest_idx are out of bounds, or if either of these plus len is out of bounds.
• If src_idx + len or dest_idx + len overflows.