diff options
Diffstat (limited to 'timezone/zdump.c')
| -rw-r--r-- | timezone/zdump.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/timezone/zdump.c b/timezone/zdump.c index ae4d286b12..d525da1bae 100644 --- a/timezone/zdump.c +++ b/timezone/zdump.c @@ -1,4 +1,4 @@ -static char elsieid[] = "@(#)zdump.c 8.2"; +static char elsieid[] = "@(#)zdump.c 7.74"; /* ** This code has been made independent of the rest of the time @@ -15,7 +15,7 @@ static char elsieid[] = "@(#)zdump.c 8.2"; #include "ctype.h" /* for isalpha et al. */ #ifndef isascii #define isascii(x) 1 -#endif /* !defined isascii */ +#endif #ifndef ZDUMP_LO_YEAR #define ZDUMP_LO_YEAR (-500) @@ -130,7 +130,11 @@ static char elsieid[] = "@(#)zdump.c 8.2"; #endif /* !defined TZ_DOMAIN */ #ifndef P +#ifdef __STDC__ #define P(x) x +#else /* !defined __STDC__ */ +#define P(x) () +#endif /* !defined __STDC__ */ #endif /* !defined P */ extern char ** environ; @@ -414,21 +418,14 @@ _("%s: use of -v on system with floating time_t other than float or double\n"), } } else if (0 > (time_t) -1) { /* - ** time_t is signed. Assume overflow wraps around. + ** time_t is signed. */ - time_t t = 0; - time_t t1 = 1; + register time_t hibit; - while (t < t1) { - t = t1; - t1 = 2 * t1 + 1; - } - - absolute_max_time = t; - t = -t; - absolute_min_time = t - 1; - if (t < absolute_min_time) - absolute_min_time = t; + for (hibit = 1; (hibit * 2) != 0; hibit *= 2) + continue; + absolute_min_time = hibit; + absolute_max_time = -(hibit + 1); } else { /* ** time_t is unsigned. @@ -471,7 +468,10 @@ const long y; } static time_t -hunt(char *name, time_t lot, time_t hit) +hunt(name, lot, hit) +char * name; +time_t lot; +time_t hit; { time_t t; long diff; @@ -541,7 +541,10 @@ struct tm * oldp; } static void -show(char *zone, time_t t, int v) +show(zone, t, v) +char * zone; +time_t t; +int v; { register struct tm * tmp; |