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Section: 28.3.4.6.4.3 [locale.time.put.virtuals] Status: TC1 Submitter: Angelika Langer Opened: 1999-07-23 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
In 28.3.4.6.4.3 [locale.time.put.virtuals] the do_put() function is specified
as taking a fill character as an argument, but the description of the
function does not say whether the character is used at all and, if so,
in which way. The same holds for any format control parameters that
are accessible through the ios_base& argument, such as the
adjustment or the field width. Is strftime() supposed to use the fill
character in any way? In any case, the specification of
time_put.do_put() looks inconsistent to me.
Is the
signature of do_put() wrong, or is the effects clause incomplete?
Proposed resolution:
Add the following note after 28.3.4.6.4.3 [locale.time.put.virtuals] paragraph 2:
[Note: the
fillargument may be used in the implementation-defined formats, or by derivations. A space character is a reasonable default for this argument. --end Note]
Rationale:
The LWG felt that while the normative text was correct,
users need some guidance on what to pass for the fill
argument since the standard doesn't say how it's used.