Assertions: Difference between revisions
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=={{header|RPL}}==
There is no build-in assertion feature in RPL, but it can be easily programmed
≪ '''IF''' SWAP '''THEN''' ABORT '''ELSE''' DROP '''END''' ≫ ''''ASSRT'''' STO ''( condition message -- message )''
≪ 43 → a
≪ a 42 == "Not good" '''ASSRT'''
"This won't happen"
≫ ≫ EVAL
{{out}}
<pre>
1: "Not good"
</pre>
=={{header|Ruby}}==
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