Submitter: C FP group
Submission Date: 2018-03-22
Document: WG14 N2224
Reference Document: TS 18661-1
TS 18661-1 CFP DR ??


It is possible that a floating-point value, when converted to a one-digit character string, results in odd numbers no matter which way rounding is done. For roundTiesToEven, IEC 60559 specifies that the larger magnitude value be used.

Suggested Technical Corrigendum:

Add the following to TS 18661-1 clause 10.2 Conversions to character sequences:

Add to F.5 Binary-decimal conversion:

NOTE: IEC 60559 specifies that conversion to one-digit character strings using roundTiesToEven when both choices are odd, shall produce the value with the larger magnitude. This can happen with 9.5 whose nearest neighbors are 9.e0 and 1.e1, both of which are odd.