Prevent timetz2tm() from scribbling on its input in HAVE_INT64_TIMESTAMP case.

diff --git a/src/backend/utils/adt/date.c b/src/backend/utils/adt/date.c
index f9d976ad65d6e1c062724bdfdf15d8094a92156a..b3839a34da270b78e96934a5b9b03d0251f8b3df 100644 (file)
--- a/src/backend/utils/adt/date.c
+++ b/src/backend/utils/adt/date.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.73.2.3 2003/01/29 01:09:03 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.73.2.4 2003/02/13 17:04:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1348,23 +1348,22 @@ timetz_out(PG_FUNCTION_ARGS)
 
 /* timetz2tm()
  * Convert TIME WITH TIME ZONE data type to POSIX time structure.
- * For dates within the system-supported time_t range, convert to the
- *     local time zone. If out of this range, leave as GMT. - tgl 97/05/27
  */
 static int
 timetz2tm(TimeTzADT *time, struct tm * tm, fsec_t *fsec, int *tzp)
 {
 #ifdef HAVE_INT64_TIMESTAMP
-       tm->tm_hour = (time->time / INT64CONST(3600000000));
-       time->time -= (tm->tm_hour * INT64CONST(3600000000));
-       tm->tm_min = (time->time / INT64CONST(60000000));
-       time->time -= (tm->tm_min * INT64CONST(60000000));
-       tm->tm_sec = (time->time / INT64CONST(1000000));
-       *fsec = (time->time - (tm->tm_sec * INT64CONST(1000000)));
+       int64           trem = time->time;
+
+       tm->tm_hour = (trem / INT64CONST(3600000000));
+       trem -= (tm->tm_hour * INT64CONST(3600000000));
+       tm->tm_min = (trem / INT64CONST(60000000));
+       trem -= (tm->tm_min * INT64CONST(60000000));
+       tm->tm_sec = (trem / INT64CONST(1000000));
+       *fsec = (trem - (tm->tm_sec * INT64CONST(1000000)));
 #else
-       double          trem;
+       double          trem = time->time;
 
-       trem = time->time;
        TMODULO(trem, tm->tm_hour, 3600e0);
        TMODULO(trem, tm->tm_min, 60e0);
        TMODULO(trem, tm->tm_sec, 1e0);