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lib_std
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hashable.e
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1999-06-05
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885b
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25 lines
-- This file is free software, which comes along with SmallEiffel. This
-- software is distributed in the hope that it will be useful, but WITHOUT
-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. You can modify it as you want, provided
-- this header is kept unaltered, and a notification of the changes is added.
-- You are allowed to redistribute it and sell it, alone or as a part of
-- another product.
-- Copyright (C) 1994-98 LORIA - UHP - CRIN - INRIA - FRANCE
-- Dominique COLNET and Suzanne COLLIN - colnet@loria.fr
-- http://SmallEiffel.loria.fr
--
deferred class HASHABLE
feature
hash_code: INTEGER is
-- The hash-code value of `Current'.
deferred
ensure
good_hash_value: Result >= 0
end;
end -- HASHABLE