main_marking3/re_test1.scala
author Christian Urban <christian.urban@kcl.ac.uk>
Wed, 01 Dec 2021 07:51:21 +0000
changeset 413 f4db8336d3d5
parent 390 720206dcacf7
child 421 864107857d27
permissions -rw-r--r--
updated

import CW8c._

assert(nullable(ZERO) == false)
assert(nullable(ONE) == true)
assert(nullable(CHAR('a')) == false)
assert(nullable(ZERO | ONE) == true)
assert(nullable(ZERO | CHAR('a')) == false)
assert(nullable(ONE ~  ONE) == true)
assert(nullable(ONE ~ CHAR('a')) == false)
assert(nullable(STAR(ZERO)) == true)