phobos2/gcc/cbridge_time.c

   1 #include <time.h>
   2 #include "config.h"
   3
   4 time_t _d_gnu_cbridge_tza()
   5 {
   6     time_t t;
   7     struct tm * p_tm;
   8
   9     time(&t);
  10     p_tm = localtime(&t);       /* this will set timezone */
  11
  12 #if defined(HAVE_TIMEZONE)
  13     return - timezone;
  14 #elif defined(HAVE__TIMEZONE)
  15     return - _timezone;
  16 #elif HAVE_TM_GMTOFF_AND_ZONE
  17     /* std.date expects this value to not include
  18        the daylight saving time offset. */
  19     if (p_tm->tm_isdst)
  20         /* std.date assumes daylight saving time is a one hour offset,
  21            so no attempt is made determine the correct offset */
  22         return p_tm->tm_gmtoff - 3600;
  23     return p_tm->tm_gmtoff;
  24 #else
  25     return (time_t) 0;
  26 #endif
  27 }