| author | Christian Urban <urbanc@in.tum.de> | 
| Thu, 31 Oct 2019 12:01:56 +0000 | |
| changeset 300 | be9900ba65ff | 
| parent 221 | d061f3a94fa7 | 
| permissions | -rw-r--r-- | 
| 300 | 1  | 
import CW9c._  | 
| 221 | 2  | 
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3  | 
assert(nullable(ZERO) == false)  | 
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assert(nullable(ONE) == true)  | 
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assert(nullable(CHAR('a')) == false)
 | 
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assert(nullable(ZERO | ONE) == true)  | 
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assert(nullable(ZERO | CHAR('a')) == false)
 | 
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assert(nullable(ONE ~ ONE) == true)  | 
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assert(nullable(ONE ~ CHAR('a')) == false)
 | 
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assert(nullable(STAR(ZERO)) == true)  | 
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11  |