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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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4
src/interfaces/ecpg/pgtypeslib/timestamp.c
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@ -119,7 +119,7 @@ SetEpochTimestamp(void)
* local time zone. If out of this range, leave as GMT. - tgl 97/05/27
*/
static int
timestamp2tm(timestamp dt, int *tzp, struct tm * tm, fsec_t *fsec, char **tzn)
timestamp2tm(timestamp dt, int *tzp, struct tm * tm, fsec_t *fsec, const char **tzn)
{
#ifdef HAVE_INT64_TIMESTAMP
int64 dDate,
@ -224,7 +224,7 @@ recalc_t:
*tzp = -tm->tm_gmtoff; /* tm_gmtoff is Sun/DEC-ism */
if (tzn != NULL)
*tzn = (char *) tm->tm_zone;
*tzn = tm->tm_zone;
#elif defined(HAVE_INT_TIMEZONE)
*tzp = (tm->tm_isdst > 0) ? TIMEZONE_GLOBAL - SECS_PER_HOUR : TIMEZONE_GLOBAL;
if (tzn != NULL)