main_testing3/re_test1.scala
author Christian Urban <christian.urban@kcl.ac.uk>
Mon, 10 Jan 2022 13:51:59 +0000
changeset 418 9ac77b4b42a7
parent 403 312c9eb39ad8
child 430 4029552de5fc
permissions -rw-r--r--
added feedback

import M3._

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)