[Openmcl-devel] Printing/Reading floats

Sven Van Caekenberghe sven at beta9.be
Mon Mar 17 16:07:53 UTC 2003


This is probably a silly question, but what is the right (portable cl) 
way to print and read floats ?

? pi
3.141592653589793D0
? (prin1-to-string pi)
"3.141592653589793D0"
? (read-from-string *)
3.1415926944584456D0
19
?

As the previous transcript shows, a straightforward approach introduces 
quite a large rounding error, is there another way to do the same thing 
?

Thx,

Sven

--
Sven Van Caekenberghe - mailto:sven at beta9.be
Beta Nine - software engineering - http://www.beta9.be
.Mac - svc at mac.com - http://homepage.mac.com/svc


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