diff options
Diffstat (limited to 'time')
| -rw-r--r-- | time/mktime.c | 86 |
1 files changed, 27 insertions, 59 deletions
diff --git a/time/mktime.c b/time/mktime.c index f4c2c67d24..e801928570 100644 --- a/time/mktime.c +++ b/time/mktime.c @@ -1,5 +1,5 @@ /* Convert a `struct tm' to a time_t value. - Copyright (C) 1993-1999, 2002 Free Software Foundation, Inc. + Copyright (C) 1993-1999, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Eggert (eggert@twinsun.com). @@ -26,11 +26,6 @@ # include <config.h> #endif -#ifdef _LIBC -# define HAVE_LIMITS_H 1 -# define STDC_HEADERS 1 -#endif - /* Assume that leap seconds are possible, unless told otherwise. If the host has a `zic' command with a `-L leapsecondfilename' option, then it supports leap seconds; otherwise it probably doesn't. */ @@ -41,32 +36,16 @@ #include <sys/types.h> /* Some systems define `time_t' here. */ #include <time.h> -#if HAVE_LIMITS_H -# include <limits.h> -#endif +#include <limits.h> #if DEBUG # include <stdio.h> -# if STDC_HEADERS -# include <stdlib.h> -# include <string.h> -# endif +# include <stdlib.h> +# include <string.h> /* Make it work even if the system's libc has its own mktime routine. */ # define mktime my_mktime #endif /* DEBUG */ -#ifndef __P -# if defined __GNUC__ || (defined __STDC__ && __STDC__) -# define __P(args) args -# else -# define __P(args) () -# endif /* GCC. */ -#endif /* Not __P. */ - -#ifndef CHAR_BIT -# define CHAR_BIT 8 -#endif - /* The extra casts work around common compiler bugs. */ #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) /* The outer cast is needed to work around a bug in Cray C 5.0.3.0. @@ -75,13 +54,6 @@ ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0)) #define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t))) -#ifndef INT_MIN -# define INT_MIN TYPE_MINIMUM (int) -#endif -#ifndef INT_MAX -# define INT_MAX TYPE_MAXIMUM (int) -#endif - #ifndef TIME_T_MIN # define TIME_T_MIN TYPE_MINIMUM (time_t) #endif @@ -395,8 +367,7 @@ static time_t localtime_offset; /* Convert *TP to a time_t value. */ time_t -mktime (tp) - struct tm *tp; +mktime (struct tm *tp) { #ifdef _LIBC /* POSIX.1 8.1.1 requires that whenever mktime() is called, the @@ -420,9 +391,7 @@ libc_hidden_weak (timelocal) #if DEBUG static int -not_equal_tm (a, b) - struct tm *a; - struct tm *b; +not_equal_tm (const struct tm *a, const struct tm *b) { return ((a->tm_sec ^ b->tm_sec) | (a->tm_min ^ b->tm_min) @@ -436,8 +405,7 @@ not_equal_tm (a, b) } static void -print_tm (tp) - struct tm *tp; +print_tm (const struct tm *tp) { if (tp) printf ("%04d-%02d-%02d %02d:%02d:%02d yday %03d wday %d isdst %d", @@ -449,19 +417,15 @@ print_tm (tp) } static int -check_result (tk, tmk, tl, lt) - time_t tk; - struct tm tmk; - time_t tl; - struct tm *lt; +check_result (time_t tk, struct tm tmk, time_t tl, const struct tm *lt) { if (tk != tl || !lt || not_equal_tm (&tmk, lt)) { printf ("mktime ("); - print_tm (&tmk); - printf (")\nyields ("); print_tm (lt); - printf (") == %ld, should be %ld\n", (long) tl, (long) tk); + printf (")\nyields ("); + print_tm (&tmk); + printf (") == %ld, should be %ld\n", (long int) tk, (long int) tl); return 1; } @@ -469,14 +433,12 @@ check_result (tk, tmk, tl, lt) } int -main (argc, argv) - int argc; - char **argv; +main (int argc, char **argv) { int status = 0; struct tm tm, tmk, tml; struct tm *lt; - time_t tk, tl; + time_t tk, tl, tl1; char trailer; if ((argc == 3 || argc == 4) @@ -498,7 +460,7 @@ main (argc, argv) tml = *lt; lt = &tml; } - printf ("mktime returns %ld == ", (long) tl); + printf ("mktime returns %ld == ", (long int) tl); print_tm (&tmk); printf ("\n"); status = check_result (tl, tmk, tl, lt); @@ -510,23 +472,26 @@ main (argc, argv) time_t to = atol (argv[3]); if (argc == 4) - for (tl = from; tl <= to; tl += by) + for (tl = from; by < 0 ? to <= tl : tl <= to; tl = tl1) { lt = localtime (&tl); if (lt) { tmk = tml = *lt; tk = mktime (&tmk); - status |= check_result (tk, tmk, tl, tml); + status |= check_result (tk, tmk, tl, &tml); } else { - printf ("localtime (%ld) yields 0\n", (long) tl); + printf ("localtime (%ld) yields 0\n", (long int) tl); status = 1; } + tl1 = tl + by; + if ((tl1 < tl) != (by < 0)) + break; } else - for (tl = from; tl <= to; tl += by) + for (tl = from; by < 0 ? to <= tl : tl <= to; tl = tl1) { /* Null benchmark. */ lt = localtime (&tl); @@ -534,13 +499,16 @@ main (argc, argv) { tmk = tml = *lt; tk = tl; - status |= check_result (tk, tmk, tl, tml); + status |= check_result (tk, tmk, tl, &tml); } else { - printf ("localtime (%ld) yields 0\n", (long) tl); + printf ("localtime (%ld) yields 0\n", (long int) tl); status = 1; } + tl1 = tl + by; + if ((tl1 < tl) != (by < 0)) + break; } } else @@ -557,6 +525,6 @@ main (argc, argv) /* Local Variables: -compile-command: "gcc -DDEBUG -DHAVE_LIMITS_H -DSTDC_HEADERS -Wall -W -O -g mktime.c -o mktime" +compile-command: "gcc -DDEBUG -Wall -W -O -g mktime.c -o mktime" End: */ |