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Null object: Difference between revisions
Added solution for Action!
Puppydrum64 (talk | contribs) No edit summary |
(Added solution for Action!) |
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Line 88:
.include "../includeARM64.inc"
</lang>
=={{header|Action!}}==
<lang Action!>TYPE Object=[
BYTE byteData
INT intData
CARD cardData]
PROC IsNull(Object POINTER ptr)
IF ptr=0 THEN
PrintE("Object is null")
ELSE
PrintE("Object is not null")
FI
RETURN
PROC Main()
Object a
Object POINTER ptr1=a,ptr2=0
IsNull(ptr1)
IsNull(ptr2)
RETURN</lang>
{{out}}
[https://gitlab.com/amarok8bit/action-rosetta-code/-/raw/master/images/Null_object.png Screenshot from Atari 8-bit computer]
<pre>
Object is not null
Object is null
</pre>
=={{header|ActionScript}}==
<lang actionscript>if (object == null)
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