ref: fdbbf1909462cef844b6b9cbbc5d90a9ec2ebed2
dir: /lib/std/test/sjlj.myr/
use std const main = { var jb if std.setjmp(&jb) std.put("nonlocal return\n") std.exit(0) ;; std.put("doing jmp\n") dolongjmp(&jb) std.fatal("unreachable\n") } const dolongjmp = {jb std.longjmp(jb) }