ref: 76c34b542f0b5c0cd6cc60a9cef9d53b6fc899d1 dir: /test/fncast.myr/
use std const main = { var fn, envfn var ptr fn = { } envfn = { ptr = ptr } ptr = fn castto(byte#) ptr = envfn castto(byte#) std.put("ok\n") }