:- protocol(comparingp).
:- info([
version is 1.0,
author 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.',
:- public((>)/2).
:- mode(>(+term, +term), zero_or_one).
:- info((>)/2, [
comment is 'True if Term1 is greater than Term2.',
:- public((>=)/2).
:- mode(>=(+term, +term), zero_or_one).
:- info((>=)/2, [
comment is 'True if Term1 is equal or grater than Term2.',
:- public((=:=)/2).
:- mode(=:=(+term, +term), zero_or_one).
:- info((=:=)/2, [
comment is 'True if Term1 is equal to Term2.',
:- public((=\=)/2).
:- mode(=\=(+term, +term), zero_or_one).
:- info((=\=)/2, [
comment is 'True if Term1 is not equal to Term2.',
:- end_protocol.