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Details

Type: Bug
Resolution: Done
Priority: P3: Somewhat important
Fix Version/s: None
Affects Version/s: 5.11.2
Component/s: Core: Date/Time
Labels:
None

Platform/s:

Windows
Story Points:
5
Commits:
91140eb7268bc36efceef0459e7b124ce333829e (qt/qtbase/dev)
Sprint:
Qt6_Foundation_Sprint 17, Qt6_Foundation_Sprint 18, Qt6_Foundation_Sprint 19, Qt6_Foundation_Sprint 20, Qt6_Foundation_Sprint 21

Description

QDate QDate::fromString(const QString &string, const QString &format) const

cannot parse dates with negative year, although the documentation states that yyyy The year as four digit number. If the year is negative, a minus sign is prepended in addition.

QDate::fromString( "-0010-01-01", "yyyy-MM-dd" );

results in an invalid date.

Instead

QString QDate::toString(const QString &format) const

correctly handles dates with negative years.

In fact

QDate( -10, 1, 1 ).toString( "yyyy-MM-dd" );

correctly creates the string "-0010-01-01".

Attachments

Issue Links

relates to

QTBUG-82886 Qt::DefaultLocaleShortDate / QLocale::ShortFormat date parsing doesn't deal with 4-digit years

Open

QTBUG-84349 QDateTimeParser wrongly accepts a sign in a month field MM

Closed

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For Gerrit Dashboard: QTBUG-84334
#	Subject	Branch	Project	Status	CR	V
312777,13	adapt QDate::fromString to better align with documentation	dev	qt/qtbase	Status: ABANDONED	0	0
315029,24	Adapt QDate::fromString() to accept negative year numbers	dev	qt/qtbase	Status: MERGED	+2	0
316087,12	Add unit tests for qdatetimeparser	dev	qt/qtbase	Status: MERGED	+2	0
316622,19	Add unit tests for QDateTimeParser internals	dev	qt/qtbase	Status: MERGED	+2	0