ref: b2d29ed0eebd0e3e2c162b5e83d6d0e8b6ddee57 dir: /lib/thread/test/util.myr/
use std use thread pkg = const mkherd : (n : uint32, fn : (-> void) ->void) ;; const mkherd = {n, fn for var i = 0; i < n; i++ std.try(thread.spawn(fn)) ;; }