#![crate_type = "lib"]

extern crate memmap;

fn read_u64<T: AsRef<[u8]>>(buf: T) {}

fn main() {
    let mmap: memmap::MmapMut = unimplemented!();
    // you can pass a reference ...
    read_u64(&mmap);
    // ... or pass an owned value.
    read_u64(mmap);
}