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Section: 30.4.3.3.3 [facet.num.put.virtuals] Status: C++11 Submitter: Seungbeom Kim Opened: 2009-06-27 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
In Table 73 — Floating-point conversions, 30.4.3.3.3 [facet.num.put.virtuals], in N2914, we have the following entries:
| State | stdio equivalent |
|---|---|
floatfield == ios_base::fixed | ios_base::scientific && !uppercase |
%a |
floatfield == ios_base::fixed | ios_base::scientific |
%A |
These expressions are supposed to mean:
floatfield == (ios_base::fixed | ios_base::scientific) && !uppercase floatfield == (ios_base::fixed | ios_base::scientific)
but technically parsed as:
((floatfield == ios_base::fixed) | ios_base::scientific) && (!uppercase) ((floatfield == ios_base::fixed) | ios_base::scientific)
and should be corrected with additional parentheses, as shown above.
[ 2009-10-28 Howard: ]
Moved to Tentatively Ready after 5 positive votes on c++std-lib.
Proposed resolution:
Change Table 83 — Floating-point conversions in 30.4.3.3.3 [facet.num.put.virtuals]:
| State | stdio equivalent |
|---|---|
floatfield == (ios_base::fixed | ios_base::scientific) && !uppercase |
%a |
floatfield == (ios_base::fixed | ios_base::scientific) |
%A |