Function nc::truncate

pub fn truncate(filename: &str, length: off_t) -> Result<(), Errno>

Truncate a file to a specified length.

let path = "/tmp/nc-truncate";
let ret = nc::open(path, nc::O_WRONLY | nc::O_CREAT, 0o644);
assert!(ret.is_ok());
let fd = ret.unwrap();
assert!(nc::close(fd).is_ok());
let ret = nc::truncate(path, 64 * 1024);
assert!(ret.is_ok());
assert!(nc::unlink(path).is_ok());