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| ☜ | unaryop1984 Version of ANSI Standard | ☞ | ||||
There are three unary operators: ' (not), + (plus), and - (minus).
Not inverts the truth value of the expratom immediately to its right. The value of 'expratom is 1 if the truth-value interpretation of expratom is 0; otherwise its value is 0. Note that '' performs the truth-value interpretation.
Plus is merely an explicit means of taking a numeric interpretation. The value of + expratom is the numeric interpretation of the value of expratom.
Minus negates the numeric interpretation of expratom. The value of -expratom is the numeric interpretation of -N, where N is the value of expratom.
Note that the order of application of unary operators is right-to-left.
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Copyright © Examples: 1995-2024 Ed de Moel;
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Copyright © Annotations: 2008-2024 Ed de Moel.
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