Re: [gobo-eiffel-develop] MA_DECIMAL_CONSTANTS.zero

[CRISMER Paul-G. <Pau...@gr...>]

Typo.

Instead of
"That way, 1 million of objects whose value is zero."

Please read
"That way, you could create 1 million of objects whose value is zero."

-----Original Message-----
From: gob...@li... [mailto:gob...@li...] On Behalf Of CRISMER Paul-Georges
Sent: jeudi 7 février 2008 14:01
To: gob...@li...
Subject: Re: [gobo-eiffel-develop] MA_DECIMAL_CONSTANTS.zero


Hello Berend,

{MA_DECIMAL}.make_zero creates one object whose value is zero.
That way, 1 million of objects whose value is zero.

{MA_DECIMAL_CONSTANTS}.zero refers to a single object whose value is zero.
You can have as many references to {MA_DECIMAL}.zero or {MA_DECIMAL_CONSTANTS}.zero, they refer all to a unique object whose value is zero.

In {MA_DECIMAL_CONSTANTS}.zero, you have to create a {MA_DECIMAL} instance (line 1:) before being able to call the {MA_DECIMAL}.zero feature (line 2:).

Since this object is just a "proxy" to be able to call the {MA_DECIMAL}.zero feature, I chose to write line 1: which creates a decimal object with 1 significant digit.

Does this make sense to you?

Best regards,

Paul G. Crismer


	zero: MA_DECIMAL is
			-- Neutral element for "+" and "-"
		once
1:			create Result.make (1)
2:			Result := Result.zero
		ensure
			zero_not_void: Result /= Void
		end

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