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authorhobbs <hobbs>2001-10-18 20:20:28 (GMT)
committerhobbs <hobbs>2001-10-18 20:20:28 (GMT)
commit2e27ec369165aca385db16cb617ced30928ced42 (patch)
tree9635bc95960987f0fc5828ccfe10e1a355563ec9 /generic/tclGetDate.y
parent026b12ef89aab44e6f8580ac75268c9421330538 (diff)
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* tests/clock.test (clock-8.1):
* generic/tclDate.c (RelativeMonth): * generic/tclGetDate.y (RelativeMonth): corrected off-by-one-day error in clock scan with relative months and years during swing hours. [Bug #413397, Patch #414024] (lavana)
Diffstat (limited to 'generic/tclGetDate.y')
-rw-r--r--generic/tclGetDate.y19
1 files changed, 18 insertions, 1 deletions
diff --git a/generic/tclGetDate.y b/generic/tclGetDate.y
index dd3310b..14b9869 100644
--- a/generic/tclGetDate.y
+++ b/generic/tclGetDate.y
@@ -11,7 +11,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclGetDate.y,v 1.17 2001/07/31 19:12:06 vincentdarley Exp $
+ * RCS: @(#) $Id: tclGetDate.y,v 1.18 2001/10/18 20:20:28 hobbs Exp $
*/
%{
@@ -798,6 +798,23 @@ RelativeMonth(Start, RelMonth, TimePtr)
result = Convert(Month, (time_t) tm->tm_mday, Year,
(time_t) tm->tm_hour, (time_t) tm->tm_min, (time_t) tm->tm_sec,
MER24, DSTmaybe, &Julian);
+
+ /*
+ * The Julian time returned above is behind by one day, if "month"
+ * or "year" is used to specify relative time and the GMT flag is true.
+ * This problem occurs only when the current time is closer to
+ * midnight, the difference being not more than its time difference
+ * with GMT. For example, in US/Pacific time zone, the problem occurs
+ * whenever the current time is between midnight to 8:00am or 7:00amDST.
+ * See Bug# 413397 for more details and sample script.
+ * To resolve this bug, we simply add the number of seconds corresponding
+ * to timezone difference with GMT to Julian time, if GMT flag is true.
+ */
+
+ if (TclDateTimezone == 0) {
+ Julian += TclpGetTimeZone((unsigned long) Start) * 60L;
+ }
+
/*
* The following iteration takes into account the case were we jump
* into a "short month". Far example, "one month from Jan 31" will