Issue 0CFP.14: P2: Effect of %a vs %A conversion specifiers

This issue has been automatically converted from the original issue lists and some formatting may not have been preserved.

Authors: WG14, Jim Thomas
Date: 2017-03-04
Reference document: N2125
Submitted against: Floating-point TS 18661 (C11 version, 2014-2016)
Status: Fixed
Fixed in: C23
Converted from: n2397.htm

Summary

The specification in TS 18661-2 for a,A conversion specifiers for decimal describes the behavior in terms of  f and e formatting. The intention was that the A conversion specifier would have the effects of F and E formatting. The following Technical Corrigendum corrects this oversight, using wording similar to that in C11 for the g,G conversion specifiers.

Suggested Technical Corrigendum

In 12.5, in the text added to 7.21.6.1#8 and 7.29.2.1#8, under a,A conversion specifiers, replace the bullets:

—    if −(n+5) ≤ q ≤ 0, use style f formatting with formatting precision equal to −q,

—    otherwise, use style e formatting with …

with:

—    if −(n+5) ≤ q ≤ 0, use style f (or style F in the case of an A conversion specifier) with formatting precision equal to −q,

—    otherwise, use style e (or style E in the case of an A conversion specifier) with …

Comment from WG14 on 2018-10-18:

Apr 2017 meeting

Committee Discussion

The committee agrees that this is a defect and accepts the Suggested Technical Corrigendum

Proposed Technical Corrigendum

In 12.5, in the text added to 7.21.6.1#8 and 7.29.2.1#8, under a,A conversion specifiers, replace the bullets:

—    if −(n+5) ≤ q ≤ 0, use style f formatting with formatting precision equal to −q,

—    otherwise, use style e formatting with …

with:

—    if −(n+5) ≤ q ≤ 0, use style f (or style F in the case of an A conversion specifier) with formatting precision equal to −q,

—    otherwise, use style e (or style E in the case of an A conversion specifier) with …