diff options
Diffstat (limited to 'src/timezone/localtime.c')
| -rw-r--r-- | src/timezone/localtime.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/timezone/localtime.c b/src/timezone/localtime.c index f5c6c0db8df..fca5ebac643 100644 --- a/src/timezone/localtime.c +++ b/src/timezone/localtime.c @@ -3,7 +3,7 @@ * 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov). * * IDENTIFICATION - * $PostgreSQL: pgsql/src/timezone/localtime.c,v 1.15 2006/10/16 19:58:26 tgl Exp $ + * $PostgreSQL: pgsql/src/timezone/localtime.c,v 1.16 2006/10/18 16:43:14 tgl Exp $ */ /* @@ -1067,6 +1067,31 @@ pg_next_dst_boundary(const pg_time_t *timep, } /* + * If the given timezone uses only one GMT offset, store that offset + * into *gmtoff and return TRUE, else return FALSE. + */ +bool +pg_get_timezone_offset(const pg_tz *tz, long int *gmtoff) +{ + /* + * The zone could have more than one ttinfo, if it's historically used + * more than one abbreviation. We return TRUE as long as they all have + * the same gmtoff. + */ + const struct state *sp; + int i; + + sp = &tz->state; + for (i = 1; i < sp->typecnt; i++) + { + if (sp->ttis[i].tt_gmtoff != sp->ttis[0].tt_gmtoff) + return false; + } + *gmtoff = sp->ttis[0].tt_gmtoff; + return true; +} + +/* * Return the name of the current timezone */ const char * |