Include Paulo Moura's Logtalk OO LP system

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/library/comparingp.lgt

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+
+:- protocol(comparingp).
+
+
+	:- info([
+		version is 1.0,
+		authors is 'Paulo Moura',
+		date is 2000/7/24,
+		comment is 'Comparing protocol using overloading of standard operators.']).
+
+
+	:- public((<)/2).
+
+	:- mode(<(+term, +term), zero_or_one).
+
+	:- info((<)/2, [
+		comment is 'True if Term1 is less than Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+	:- public((=<)/2).
+
+	:- mode(=<(+term, +term), zero_or_one).
+
+	:- info((=<)/2, [
+		comment is 'True if Term1 is less or equal than Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+	:- public((>)/2).
+
+	:- mode(>(+term, +term), zero_or_one).
+
+	:- info((>)/2, [
+		comment is 'True if Term1 is greater than Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+	:- public((>=)/2).
+
+	:- mode(>=(+term, +term), zero_or_one).
+
+	:- info((>=)/2, [
+		comment is 'True if Term1 is equal or grater than Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+	:- public((=:=)/2).
+
+	:- mode(=:=(+term, +term), zero_or_one).
+
+	:- info((=:=)/2, [
+		comment is 'True if Term1 is equal to Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+	:- public((=\=)/2).
+
+	:- mode(=\=(+term, +term), zero_or_one).
+
+	:- info((=\=)/2, [
+		comment is 'True if Term1 is not equal to Term2.',
+		argnames is ['Term1', 'Term2']]).
+
+
+:- end_protocol.