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SCCS-file: zdump.c

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SCCS-SID: 7.59
This commit is contained in:
Arthur David Olson
2004-12-30 08:46:00 -05:00
committed by Paul Eggert
parent 842255250e
commit f9f1feea3b
1 changed files with 13 additions and 5 deletions
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18
zdump.c
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@ -151,7 +151,7 @@ static void dumptime P((const struct tm * tmp));
static time_t hunt P((char * name, time_t lot, time_t hit));
static void setabsolutes();
static void show P((char * zone, time_t t, int v));
static char * tformat P((void));
static const char * tformat P((void));
static time_t yeartot P((long y));
int
@ -505,21 +505,29 @@ struct tm * tmp;
return (result == NULL) ? &nada : result;
}
static char *
/*
** The code below can fail on certain theoretical systems;
** it works on all known real-world systems as of 2004-12-30.
*/
static const char *
tformat()
{
if (0.5 == (time_t) 0.5) /* floating */
if (0.5 == (time_t) 0.5) { /* floating */
if (sizeof (time_t) > sizeof (double))
return "%Lg";
return "%g";
}
if (0 > (time_t) -1) { /* signed */
if (sizeof (time_t) > sizeof (long))
return "%lld";
if (sizeof (time_t) == sizeof (long))
if (sizeof (time_t) > sizeof (int))
return "%ld";
return "%d";
}
if (sizeof (time_t) > sizeof (unsigned long))
return "%llu";
if (sizeof (time_t) == sizeof (unsigned long))
if (sizeof (time_t) > sizeof (unsigned int))
return "%lu";
return "%u";
}