| author | Christian Urban <christian.urban@kcl.ac.uk> | 
| Thu, 13 Jan 2022 12:55:03 +0000 | |
| changeset 420 | a6db2b70abdd | 
| parent 403 | 312c9eb39ad8 | 
| child 430 | 4029552de5fc | 
| permissions | -rw-r--r-- | 
| 403 | 1 | import M3._ | 
| 221 | 2 | |
| 3 | assert(nullable(ZERO) == false) | |
| 4 | assert(nullable(ONE) == true) | |
| 5 | assert(nullable(CHAR('a')) == false)
 | |
| 6 | assert(nullable(ZERO | ONE) == true) | |
| 7 | assert(nullable(ZERO | CHAR('a')) == false)
 | |
| 8 | assert(nullable(ONE ~ ONE) == true) | |
| 9 | assert(nullable(ONE ~ CHAR('a')) == false)
 | |
| 10 | assert(nullable(STAR(ZERO)) == true) | |
| 11 |