X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmktime.c;h=b2d9e52e4bc60ec9b554f80221266e65a5af82d1;hb=8de557e31178699dd6e839850056f0653cdfba89;hp=300607c4ba8343885582f71beef004926397cbe3;hpb=f77aebf866032522e6a2c8b0d36a587f6aeccbe4;p=gnulib.git diff --git a/lib/mktime.c b/lib/mktime.c index 300607c4b..b2d9e52e4 100644 --- a/lib/mktime.c +++ b/lib/mktime.c @@ -1,6 +1,5 @@ /* Convert a `struct tm' to a time_t value. - Copyright (C) 1993-1999, 2002, 2003, 2004, 2005 Free Software Foundation, - Inc. + Copyright (C) 1993-1999, 2002-2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Eggert (eggert@twinsun.com). @@ -16,7 +15,7 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Define this to have a standalone program to test this implementation of mktime. */ @@ -38,10 +37,11 @@ #include +#include /* For the real memcpy prototype. */ + #if DEBUG # include # include -# include /* Make it work even if the system's libc has its own mktime routine. */ # define mktime my_mktime #endif /* DEBUG */ @@ -68,9 +68,9 @@ an integer. */ #define TYPE_IS_INTEGER(t) ((t) 1.5 == 1) -/* True if negative values of the signed integer type T use twos - complement, ones complement, or signed magnitude representation, - respectively. Much GNU code assumes twos complement, but some +/* True if negative values of the signed integer type T use two's + complement, ones' complement, or signed magnitude representation, + respectively. Much GNU code assumes two's complement, but some people like to be portable to all possible C hosts. */ #define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1) #define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0) @@ -228,13 +228,12 @@ static struct tm * ranged_convert (struct tm *(*convert) (const time_t *, struct tm *), time_t *t, struct tm *tp) { - struct tm *r; + struct tm *r = convert (t, tp); - if (! (r = (*convert) (t, tp)) && *t) + if (!r && *t) { time_t bad = *t; time_t ok = 0; - struct tm tm; /* BAD is a known unconvertible time_t, and OK is a known good one. Use binary search to narrow the range between BAD and OK until @@ -244,11 +243,9 @@ ranged_convert (struct tm *(*convert) (const time_t *, struct tm *), time_t mid = *t = (bad < 0 ? bad + ((ok - bad) >> 1) : ok + ((bad - ok) >> 1)); - if ((r = (*convert) (t, tp))) - { - tm = *r; - ok = mid; - } + r = convert (t, tp); + if (r) + ok = mid; else bad = mid; } @@ -258,8 +255,7 @@ ranged_convert (struct tm *(*convert) (const time_t *, struct tm *), /* The last conversion attempt failed; revert to the most recent successful attempt. */ *t = ok; - *tp = tm; - r = tp; + r = convert (t, tp); } } @@ -488,7 +484,7 @@ __mktime_internal (struct tm *tp, t2 = t1 + sec_adjustment; if (((t1 < t) != (sec_requested < 0)) | ((t2 < t1) != (sec_adjustment < 0)) - | ! (*convert) (&t2, &tm)) + | ! convert (&t2, &tm)) return -1; t = t2; }