Floating point print Incompatibility SWI 5.10.2 versus 6.6.2

Jeff <[email protected]>
Newsgroups gmane.comp.ai.prolog.swi
Message-ID <[email protected]>
I have been using the older 5.10.2 for years (on my Intel Mac) and have
just tried 6.6.2 (on a remote Linux system).

In 5.10.2:

 ?-	A is 2.1, write(A).
	2.1
	A = 2.1.

 ?-	A is 2.1 + 3.2, write(A).
	5.3
	A = 5.3. 

In 6.6.2:

 ?-	A is 2.1, write(A).
	2.1
	A = 2.100000000.

 ?-	A is 2.1 + 3.2, write(A).
	5.300000000000001
	A = 5.300000000.

I have set flags so that BOTH versions have

	current_prolog_flag(float_format, %g’).

and	current_prolog_flag(write_attributes, ignore).

How can I get 6.6.2 to behave the way 5.10.2 did???



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