slice_dst

Function alloc_slice_dst_in

Source 
pub fn alloc_slice_dst_in<S: ?Sized + SliceDst, F>(
    container: F,
    len: usize,
) -> NonNull<S>
where
    F: FnOnce(Layout) -> Layout,
Expand description

Allocate a slice-based DST with the global allocator within some container.

The returned pointer is owned and completely uninitialized; you are required to initialize it correctly.

Note that while this function returns a ptr::NonNull<S>, the pointer is to the allocation as specified by container(S::layout(len)), so if you want/need a pointer to S, you will need to offset it.

If the layout to be allocated has zero size, then an arbitrary aligned dangling nonnull pointer is returned.