Public Comment Number PC-UK0120 ISO/IEC CD 9899 (SC22N2620) Public Comment =========================================== Date: 1998-02-25 Author: N.M Maclaren Author Affiliation: Self Postal Address: University of Cambridge, Computer Laboratory, New Museums Site, Pembroke Street, Cambridge CB3 3QG, United Kingdom E-mail Address: Telephone Number: +44 1223 334761 Fax Number: +44 1223 334679 Number of individual comments: 1 Comment 1. Category: Normative change to existing feature retaining the original intent Committee Draft subsection: 5.2.4.2.2 Title: Rounding in ambiguous cases without IEEE Detailed description: Paragraph 5 doesn't define precisely what the rounding mode terms mean, and there are many possible interpretations (especially of nearest rounding for numbers that fall precisely between two values.) Note that this is specified by IEEE 754 but explicitly not by LIA-1. I suggest adding the following to the end of the last sentence: Unless __STD_IEC_559__ is defined (see Annex F), the exact meaning of these rounding modes is implementation-defined.