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Re: Rounding rule for P1788/M0037.01

Of course, "implementation-defined" would mean we would be
giving up reproducibility, but that would not be a problem
with 754-based formats.

Baker

On 10/29/2012 12:05 PM, Vincent Lefevre wrote:

On 2012-10-29 12:30:59 -0400, Michel Hack wrote:

Perhaps we should offer a friendly amendment to replace that
paragraph:

     "if there are two closest numbers, we use the default
     rounding mode defined for the format."


There isn't necessarily a notion of "default" rounding mode.
But you could say that the choice of the rounded value (among
the two closest numbers) is implementation-defined.


This would also allow COBOL to use ties-away-from-zero, which
is permitted by IEEE 754-2008 for decimal formats.


Yes.




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Ralph Baker Kearfott,   rbk@xxxxxxxxxxxxx   (337) 482-5346 (fax)
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