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Key: STDCXX-535
Type: Bug Bug
Status: Open Open
Priority: Major Major
Assignee: Martin Sebor
Reporter: Travis Vitek
Votes: 0
Watchers: 0
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C++ Standard Library

std::time_put can generate output that is not parseable by std::time_get facet

Created: 23/Aug/07 11:58 PM   Updated: 06/Apr/08 10:59 PM
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Component/s: 22. Localization
Affects Version/s: 4.1.2, 4.1.3, 4.1.4
Fix Version/s: 4.3.0

Time Tracking:
Original Estimate: 4h
Original Estimate - 4h
Remaining Estimate: 4h
Remaining Estimate - 4h
Time Spent: Not Specified
Remaining Estimate - 4h

Severity: Incorrect Behavior


 Description  « Hide
std::time_get<>::get_date() is required to be able to parse the output produced by std::time_put<>::put(..., 'x'). For some locales, the '%x' format specifier expands out to '%e.%m.%Y'. When a date is formatted using this, there will be a leading space, and that leading space causes the time_get<>::get_date() operation to fail.

The root of the problem is that the POSIX strftime() function [which we emulate in time_get] requires that the '%e' specifier generate whitespace for single digit monthdays, and the POSIX strptime() function says that the number may be padded on the left with 0s. It does not appear to specify that whitespace is allowed. The strptime() implementation on some platforms [sun, linux, compaq, aix] allow this whitespace, while others [hp, freebsd] do not.

Discussion here.
http://mail-archives.apache.org/mod_mbox/incubator-stdcxx-dev/200708.mbox/%3c46CC8D6C.9000007@roguewave.com%3e



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