07-271R1
To: J3
From: Dick Hendrickson
Subject: Interpretation: Field width for INFINITY output
Date: 2007 August 02
NUMBER: F03/0100
TITLE: Error in field width for special cases of signed INFINITY output
KEYWORDS: formatted output, signed infinity
DEFECT TYPE: Erratum
STATUS: J3 consideration in progress
QUESTION:
Is there an error in the description for the output of a IEEE infinity
with a sign and a field width of 3 or 8?
228:36-37 describes the output for an IEEE infinity and special cases
field widths of 3 and 8. But, the special casing doesn't consider the
possibility of a plus or minus sign in the field. A signed infinity
should be special cased for field widths of 9 and 4.
ANSWER:
Yes, there is an error in the special cases. Edits are provided to
correctly describe the required field widths for signed infinities.
EDITS:
[228:7] In the paragraph beginning "For an internal value that is an
IEEE infinity." in 10.6.1.2.1 change "If is less than 3" to
"If no sign is produced and is less than 3".
Add after that sentence:
"If a sign is produced and is less than 4, the field is filled with
asterisks; otherwise, if is less than 9, the sign followed by 'Inf'
is produced. "
SUBMITTED BY: Dick Hendrickson
HISTORY: 07-271 m181 F03/00xx Submitted
07-271r1 m181 Draft answer