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authorRoland McGrath <roland@gnu.org>1995-10-06 04:50:55 +0000
committerRoland McGrath <roland@gnu.org>1995-10-06 04:50:55 +0000
commit80fd73873bd51e58039983a9416ef3bb97bdac57 (patch)
tree76bfd0b8072711fe1600de73879168d4b9671c33 /time/offtime.c
parent6a76c115150318eae5d02eca76f2fc03be7bd029 (diff)
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Fri Sep 29 03:43:51 1995 Paul Eggert <eggert@twinsun.com>
Rewrite mktime from scratch for performance, and for correctness in the presence of leap seconds. * time/mktime.c (ydhms_tm_diff, not_equal_tm, print_tm, check_result): New functions. (LEAP_SECONDS_POSSIBLE, CHAR_BIT, INT_MIN, INT_MAX, TIME_T_MIN, TIME_T_MAX, TM_YEAR_BASE, EPOCH_YEAR): New macros. <limits.h>, <stdlib.h>: New #includes. (main): Support tests with given broken-down value; support benchmarks. (__mon_lengths, debugging_enabled, printtm, dist_tm, doit, do_normalization, normalize, BAD_STRUCT_TM, SKIP_VALUE, <ctype.h>): Remove. * time/time.h, time/mktime.c (__mktime_internal): New offset arg. * time/mktime.c (mktime), time/timegm.c (timegm): Use it. * time/mktime.c (__mon_yday): New variable; replaces `__mon_lengths'. time/offtime.c (__offtime), time/tzset.c (compute_change): Use it. * time/offtime.c (__offtime): Remove useless assignment `tp->tm_isdst = -1'. * manual/maint.texi: Update credits. Fri Oct 6 00:28:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/unix/common/readv.S: Moved to sysdeps/unix/bsd. * sysdeps/unix/common/writev.S: Moved to sysdeps/unix/bsd. * sysdeps/unix/sysv/linux/readv.c: File removed. * sysdeps/unix/sysv/linux/writev.c: File removed. * sysdeps/unix/configure.in: Check for readv and writev syscalls. * sysdeps/unix/configure.in: If eval doesn't set $unix_srcname, set it to $unix_syscall instead of $unix_function.
Diffstat (limited to 'time/offtime.c')
-rw-r--r--time/offtime.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/time/offtime.c b/time/offtime.c
index e588c4c..4b8ddb1 100644
--- a/time/offtime.c
+++ b/time/offtime.c
@@ -21,7 +21,7 @@ Cambridge, MA 02139, USA. */
/* Defined in mktime.c. */
-extern CONST unsigned short int __mon_lengths[2][12];
+extern CONST unsigned short int __mon_yday[2][13];
#define SECS_PER_HOUR (60 * 60)
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
@@ -71,10 +71,10 @@ DEFUN(__offtime, (t, offset, tp),
}
tp->tm_year = y - 1900;
tp->tm_yday = days;
- ip = __mon_lengths[__isleap(y)];
- for (y = 0; days >= ip[y]; ++y)
- days -= ip[y];
+ ip = __mon_yday[__isleap(y)];
+ for (y = 11; days < ip[y]; --y)
+ continue;
+ days -= ip[y];
tp->tm_mon = y;
tp->tm_mday = days + 1;
- tp->tm_isdst = -1;
}