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| 2 | :- protocol(comparingp). |
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| 3 | |
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| 4 | :- info([ |
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| 5 | version is 1.0, |
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| 6 | author is 'Paulo Moura', |
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| 7 | date is 2000/7/24, |
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| 8 | comment is 'Comparing protocol using overloading of standard operators.']). |
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| 9 | |
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| 10 | :- public((<)/2). |
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| 11 | :- mode(<(+term, +term), zero_or_one). |
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| 12 | :- info((<)/2, [ |
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| 13 | comment is 'True if Term1 is less than Term2.', |
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| 14 | argnames is ['Term1', 'Term2']]). |
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| 15 | |
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| 16 | :- public((=<)/2). |
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| 17 | :- mode(=<(+term, +term), zero_or_one). |
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| 18 | :- info((=<)/2, [ |
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| 19 | comment is 'True if Term1 is less or equal than Term2.', |
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| 20 | argnames is ['Term1', 'Term2']]). |
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| 21 | |
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| 22 | :- public((>)/2). |
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| 23 | :- mode(>(+term, +term), zero_or_one). |
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| 24 | :- info((>)/2, [ |
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| 25 | comment is 'True if Term1 is greater than Term2.', |
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| 26 | argnames is ['Term1', 'Term2']]). |
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| 27 | |
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| 28 | :- public((>=)/2). |
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| 29 | :- mode(>=(+term, +term), zero_or_one). |
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| 30 | :- info((>=)/2, [ |
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| 31 | comment is 'True if Term1 is equal or grater than Term2.', |
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| 32 | argnames is ['Term1', 'Term2']]). |
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| 33 | |
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| 34 | :- public((=:=)/2). |
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| 35 | :- mode(=:=(+term, +term), zero_or_one). |
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| 36 | :- info((=:=)/2, [ |
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| 37 | comment is 'True if Term1 is equal to Term2.', |
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| 38 | argnames is ['Term1', 'Term2']]). |
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| 39 | |
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| 40 | :- public((=\=)/2). |
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| 41 | :- mode(=\=(+term, +term), zero_or_one). |
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| 42 | :- info((=\=)/2, [ |
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| 43 | comment is 'True if Term1 is not equal to Term2.', |
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| 44 | argnames is ['Term1', 'Term2']]). |
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| 45 | |
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| 46 | :- end_protocol. |
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