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8b2c2981
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2003-09-09T22:41:13
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Remove K&R cruft.
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7b224479
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2003-09-06T21:34:07
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Add time_r module. Change timegm, mktime, and strftime to use localtime_r
and gmtime_r, now supplied by the time_r module. This fixes some timegm
bugs and cleans up mktime and strftime a bit.
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c80984f8
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2003-07-07T23:11:52
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Fix some boundary cases and remove need for floating point.
Issue a compile-time diagnostic if time_t is floating point, or if
two's complement arithmetic is not in effect, or if arithmetic
right shift does not propagate the sign. These assumptions were
all in the original code but they weren't checked.
(TIME_T_MIDPOINT, verify): New macros.
(__isleap): Remove; it has integer overflow problems.
(leapyear): New function, without those problems.
(ydhms_tm_diff): Remove; splitting into two parts.
(ydhms_diff): New function, containing the arithmetic part of
the old ydhms_tm_diff function. Issue a compile-time
diagnostic if we are not using C99 integer division.
Avoid casts when possible.
(guess_time_tm): New function, containing the checking part of
the old ydhms_tm_diff function. Return the new value, rather than
the difference between it and the old. Accept a new argument T
so that *T specifies the old value. Check for overflow in the result.
(__mktime_internal): Use a time_t offset, not a long int offset.
This undoes the 2003-06-04 change, which is no longer needed now
that we have better overflow checking.
(localtime_offset): Likewise.
(__mktime_internal): Avoid harmful overflow on hosts where time_t
and long are 64-bit but int is only 32-bit.
(ydhms_diff): Use long int to store year1 and yday1.
Issue a compile-time diagnostic if long int is not wide enough.
(__mktime_internal): Use long int to store adjusted year and yday.
Use plain C rather than preprocessor commands, if that doesn't
affect efficiency.
Check for overflow (and try to repair) after each probe
rather than checking only at the very end. This avoids some bugs
(e.g., southern hemisphere, behind GMT, and GMT offset at minimum time
does not equal GMT offset at maximum time).
Use integer to check for overflow rather than floating point; this
is more portable to non-IEEE hosts, and is a tad faster.
When we detect that we are oscillating between two values,
don't check whether tm_isdst has the requested value, since
we already know the answer. When tm_isdst has the wrong value,
use a different heuristic to find the right one, based on the
extreme values actually observed in practice in tz2003a,
rather than the (overly optimistic) "previous 3 calendar quarters".
(not_equal_tm, print_tm, check_result): Use "const T" rather than
"T const" to accommodate glibc style.
(check_result): Use less-confusing report format. "long" -> "long int.
(main): Likewise.
Don't loop if the iteration overflows time_t.
Allow a negative step in the iteration.
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bea5a055
|
2003-06-05T20:07:59
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|
Assume freestanding C89 or better.
(HAVE_LIMITS_H): Remove. Assume it's 1.
(__P): Remove; not used.
(INT_MIN, INT_MAX): Remove; <limits.h> defines them.
(mktime, not_equal_tm, print_tm, check_result,
main): Use prototypes. Use const * where appropriate.
(main): Fix typo in testing code that uncovered by above changes.
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b2c42615
|
2003-06-05T06:43:15
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|
Fix Debian bug 177940
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=177940>.
(localtime_offset): Now long int, not time_t, because we want it
to be guaranteed to be signed. All uses changed.
(__mktime_internal): If overflow would occur when adding offset,
don't add it.
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a76a349e
|
2003-06-04T20:09:47
|
|
Ensure we use gnulib mktime rather than glibc's mktime, on hosts
where mktime isn't the inverse of localtime (negative time_t).
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|
54a64110
|
2003-05-30T15:06:41
|
|
mktime update from libc
|
|
|
3b59684c
|
2003-05-28T20:18:22
|
|
(__mktime_internal): Do not reject negative timestamps arbitrarily.
|
|
41d8937a
|
2002-11-25T15:31:05
|
|
Really sync with libc, not with my locally-modified copy.
Thanks, Karl!
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1bc47090
|
2002-11-25T13:22:20
|
|
Sync from libc, now that it has the latest fix.
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fd8e762e
|
2002-11-24T10:39:54
|
|
Merge in changes from libc.
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|
9d7d2eaf
|
2002-11-24T10:06:16
|
|
Avoid a link-time failure on some Linux systems.
(STATIC): Define to be empty (_LIBC) or `static' (otherwise).
(__mon_yday): Declare with the STATIC attribute.
(__mktime_internal): Likewise.
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|
|
89f2b489
|
2000-08-07T15:48:18
|
|
back out Copyright date changes for files with no changes year
|
|
|
d349992d
|
2000-07-09T07:22:43
|
|
update copyright date
|
|
|
b0aca2f6
|
1999-02-17T14:58:41
|
|
tweak comment
|
|
|
f979eb04
|
1999-02-16T21:35:48
|
|
new version from Uli
|
|
|
7f20e762
|
1999-01-19T04:47:24
|
|
(__mktime_internal): Adopt the traditional (and
problematic) notion of what to do when tm_isdst doesn't match.
From Paul Eggert.
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|
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cf42d3e5
|
1998-12-07T03:12:10
|
|
ansideclify
|
|
|
d37eda27
|
1998-10-18T14:08:35
|
|
Don't invoke localtime_r or gmtime_r unless it's the GNU C
library's localtime_r and gmtime_r; there are too many buggy
implementations of localtime_r and gmtime_r out there, and
it's not worth keeping track of all the different bugs.
* mktime.c (__EXTENSIONS__, HAVE_LOCALTIME_R): Remove.
(my_mktime_localtime_r): Renamed from localtime_r; all uses changed.
Base it on localtime unless _LIBC.
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6579bcf6
|
1998-10-18T01:10:21
|
|
Declare localtime_r if necessary.
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|
|
184e8608
|
1998-10-17T12:39:30
|
|
Some systems require <unistd.h> to be included before <time.h> for
localtime_r to be declared properly.
|
|
|
599729fb
|
1998-10-12T02:00:59
|
|
(_REENTRANT): Define again -- linux-2.0.33 needs it.
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|
|
a5382999
|
1998-10-11T23:03:41
|
|
(__mktime_internal): When the requested time falls
in a spring-forward gap of size DT, return a time that is DT
away from the requested time, preferring a time whose tm_isdst
differs from the requested value. Bump the max number of
probes from 4 to 6 to account for the extra probes needed to
discover a spring-forward gap in the worst case.
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|
|
c5da3fd9
|
1998-10-08T12:19:48
|
|
(my_mktime_localtime_r): Renamed from localtime_r.
Define also if HAVE_LOCALTIME_R && defined (localtime_r), with
a body that merely expands localtime_r; this works around a
bug in Digital Unix 4.0A and 4.0D.
|
|
|
0eeff3be
|
1998-04-12T15:16:37
|
|
.
|
|
|
96462d30
|
1998-04-12T09:39:30
|
|
(TYPE_MAXIMUM): Update from system.h.
|
|
|
9300fc8b
|
1998-02-24T23:19:13
|
|
add comment
|
|
|
bfd921d6
|
1998-01-23T22:02:54
|
|
(__mktime_internal): Work around bug in Irix4.0.5's
C compiler. From Kaveh Ghazi.
(TYPE_MINIMUM): Define.
(TYPE_MAXIMUM): Define.
(TIME_T_MIN): Use TYPE_MINIMUM.
(TIME_T_MAX): Use TYPE_MAXIMUM.
|
|
|
fd396561
|
1997-11-18T03:32:00
|
|
(_REENTRANT): #define, as some hosts need this to declare localtime_r properly.
From Paul Eggert.
|
|
|
1873f591
|
1997-11-13T13:22:54
|
|
Update from FSF.
|
|
|
89b2adc0
|
1997-09-17T12:46:45
|
|
update from FSF .../copies
|
|
|
068f1a3a
|
1997-03-14T03:28:09
|
|
(TIME_T_MIN): Work around a bug in Cray C 5.0.3.0.
|
|
|
77d822a7
|
1997-02-21T02:16:54
|
|
update from FSF
|
|
|
1631b5c0
|
1996-11-05T04:22:40
|
|
Fix copyright.
|
|
|
6d8337bf
|
1996-07-15T03:36:16
|
|
update FSF address in copyright
|
|
|
870b659d
|
1995-11-03T19:56:08
|
|
New version from glibc.
|
|
|
2c5d56e2
|
1994-09-27T22:02:08
|
|
merge with 1.10n2
|
|
|
c9aad3a0
|
1994-08-19T22:42:32
|
|
merge with 1.10g
|
|
|
8965f456
|
1994-07-26T04:06:26
|
|
merge with 1.10f
|
|
|
6a75c0b2
|
1994-02-12T17:23:51
|
|
merge with 1.9.2i
|
|
|
43e78b97
|
1992-11-01T05:44:30
|
|
Initial revision
|