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Add const qualifier to tzn returned by timestamp2tm()

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The tzn value might come from tm->tm_zone, which libc declares as
const, so it's prudent that the upper layers know about this as well.
This commit is contained in:
Peter Eisentraut
2012-03-15 21:17:19 +02:00
parent 531e60aec0
commit eb990a2b9e
6 changed files with 10 additions and 10 deletions
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8
src/backend/utils/adt/timestamp.c
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@ -494,7 +494,7 @@ timestamptz_out(PG_FUNCTION_ARGS)
struct pg_tm tt,
*tm = &tt;
fsec_t fsec;
char *tzn;
const char *tzn;
char buf[MAXDATELEN + 1];
if (TIMESTAMP_NOT_FINITE(dt))
@ -1415,7 +1415,7 @@ timestamptz_to_str(TimestampTz t)
struct pg_tm tt,
*tm = &tt;
fsec_t fsec;
char *tzn;
const char *tzn;
if (TIMESTAMP_NOT_FINITE(t))
EncodeSpecialTimestamp(t, buf);
@ -1466,7 +1466,7 @@ dt2time(Timestamp jd, int *hour, int *min, int *sec, fsec_t *fsec)
* timezone) will be used.
*/
int
timestamp2tm(Timestamp dt, int *tzp, struct pg_tm * tm, fsec_t *fsec, char **tzn, pg_tz *attimezone)
timestamp2tm(Timestamp dt, int *tzp, struct pg_tm * tm, fsec_t *fsec, const char **tzn, pg_tz *attimezone)
{
Timestamp date;
Timestamp time;
@ -1602,7 +1602,7 @@ recalc_t:
tm->tm_zone = tx->tm_zone;
*tzp = -tm->tm_gmtoff;
if (tzn != NULL)
*tzn = (char *) tm->tm_zone;
*tzn = tm->tm_zone;
}
else
{