17 lines
386 B
Text
17 lines
386 B
Text
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Most programming languages have a native Boolean data type. Perl
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does not.
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Perl has a simple and well known Truth System. The following scalar
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values are false:
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$false1 = undef;
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$false2 = 0;
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$false3 = 0.0;
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$false4 = '';
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$false5 = '0';
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Every other scalar value is true.
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This module provides basic Boolean support, by defining two special
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objects: true and false.
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