Null object: Difference between revisions
→{{header|EMal}}
Line 819:
int b # defaults to 0
void c # only one allowed value: null
writeLine("nullable var equals
writeLine("type of a equals to Void data type: " + (generic!a == void))
writeLine("integer value " + b + " equals to null: " + (b == null)) # allowed, always false
writeLine("a void value equals to null: " + (c == null)) # always true
Line 826 ⟶ 827:
{{out}}
<pre>
nullable var equals
type of a equals to Void data type: ⊤
integer value 0 equals to null: ⊥
|