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Fix an off by 1 calculation which meant that weekOfYear would return 2

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for the first week of a year whenever the first Thursday of that year
is 7 Jan, for instance 2016.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@40239 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Wolfgang Lux 2016-11-28 09:01:04 +00:00
parent 34359ff25f
commit 80a0d3f28d
2 changed files with 10 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2016-11-28 Wolfgang Lux <wolfgang.lux@gmail.com>
* Source/Additions/NSCalendarDate+GNUstepBase.m (weekOfYear): Fix
an off by 1 calculation which meant that weekOfYear would return 2
for the first week of a year whenever the first Thursday of that
year is 7 Jan, for instance 2016.
2016-11-10 Richard Frith-Macdonald <rfm@gnu.org>
* Source/NSPortCoder.m:

4
Source/Additions/NSCalendarDate+GNUstepBase.m
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@ -89,8 +89,10 @@
/*
* Round up to a week boundary, so that when we divide by seven we
* get a result in the range 1 to 53 as mandated by the ISO standard.
* Note that dayOfYear starts at 1, too, and hence we must be careful
* to not round up an exact multiple of 7.
*/
dayOfYear += (7 - dayOfYear % 7);
dayOfYear += (7 - (dayOfYear - 1) % 7);
return dayOfYear / 7;
}