src/MoniTool/MoniTool_ElemHasher.cdl


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-- File:	MoniTool_ElemHasher.cdl
-- Created:	Fri Nov  4 11:06:49 1994
-- Author:	Christian CAILLET
--		<cky@anion>
---Copyright:	 Matra Datavision 1994


class ElemHasher  from MoniTool

    ---Purpose : ElemHasher defines HashCode for Element, which is : ask a
    --           Element its HashCode !  Because this is the Element itself
    --           which brings the HashCode for its Key
    --           
    --           This class complies to the template given in TCollection by
    --           MapHasher itself

uses Element

is

    HashCode (myclass; K : Element; Upper : Integer) returns Integer;
    ---Purpose : Returns a HashCode in the range <0,Upper> for a Element :
    --           asks the Element its HashCode then transforms it to be in the
    --           required range

    IsEqual (myclass; K1, K2 : Element) returns Boolean;
    ---Purpose : Returns True if two keys are the same.
    --           The test does not work on the Elements themselves but by
    --           calling their methods Equates

end ElemHasher;