-- File:	IntTools_CompareRange.cdl
-- Created:	Tue Oct 24 14:07:14 2000
-- Author:	Peter KURNEV
--		<pkv@irinox>
---Copyright:	 Matra Datavision 2000


class CompareRange from IntTools 

	---Purpose: Auxiliary class to provide a sorting Ranges, 
        --          taking  into  account a value of Left .   

uses
    Range from IntTools
--raises

is
    Create   
    	returns CompareRange from IntTools; 
	---Purpose:
	--- Empty constructor
	---
	 
    Create  (aTol:Real from Standard) 
    	returns CompareRange from IntTools;
	---Purpose:
	--- Initializes me by tolerance
	---
	 
    IsLower (me; Left, Right: Range from IntTools)
	---Purpose: 
    	--- Returns True if <Left> is lower than <Right>.
	---
    	returns Boolean from Standard;
    
    IsGreater (me; Left, Right: Range from IntTools)
	---Level: Public
	---Purpose: 
    	--- Returns True if <Left> is greater than <Right>.
	---
    	returns Boolean from Standard;

    IsEqual(me; Left, Right: Range from IntTools)
	---Level: Public
	---Purpose: 
    	--- Returns True when <Right> and <Left> are equal.
	---
    	returns Boolean from Standard ;

fields
    myTol: Real from Standard; 

end CompareRange;