Boolean values: Difference between revisions
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<syntaxhighlight lang="rockstar">Alice was right. |
<syntaxhighlight lang="rockstar">Alice was right. |
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Bob was wrong.</syntaxhighlight> |
Bob was wrong.</syntaxhighlight> |
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=={{header|RPL}}== |
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There is no boolean variable type in RPL. Boolean values are real numbers, zero meaning 'FALSE' and any other value meaning 'TRUE'; built-in boolean operators and functions always return 1 for TRUE. |
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RPL users have also access to boolean registers named flags, identified by a number, that can be cleared, set or tested. |
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{{works with|Halcyon Calc|4.2.7}} |
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1 == 1 |
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1 == 2 |
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≪ IF 42 THEN "TRUE" ELSE "FALSE" END ≫ EVAL |
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14 CF 14 FS? |
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14 SF 14 FS? |
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{{out}} |
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<pre> |
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5: 1 |
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4: 0 |
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3: "TRUE" |
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2: 0 |
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1: 1 |
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</pre> |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |