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[macOS] Fix lower bound when searching for previous transitions 

The lower bound shouldn't be the smallest (positive) value representable
by a double, but the *lowest* (finite) value.

Task-number: QTBUG-69862
Change-Id: Ia66610e3c0f8d9643c329714607f5af573206fd8
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
bb10
Erik Verbruggen 2018-08-09 11:34:27 +02:00
parent f2862b4d5d
commit 8dd40e9b09
1 changed files with 1 additions and 1 deletions
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2
src/corelib/tools/qtimezoneprivate_mac.mm
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@ -227,7 +227,7 @@ QTimeZonePrivate::Data QMacTimeZonePrivate::nextTransition(qint64 afterMSecsSinc
QTimeZonePrivate::Data QMacTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const
{
// The native API only lets us search forward, so we need to find an early-enough start:
const NSTimeInterval lowerBound = std::numeric_limits<NSTimeInterval>::min();
const NSTimeInterval lowerBound = std::numeric_limits<NSTimeInterval>::lowest();
const qint64 endSecs = beforeMSecsSinceEpoch / 1000;
const int year = 366 * 24 * 3600; // a (long) year, in seconds
NSTimeInterval prevSecs = endSecs; // sentinel for later check