Index: icu46/source/tools/tzcode/tzfile.h |
=================================================================== |
--- icu46/source/tools/tzcode/tzfile.h (revision 0) |
+++ icu46/source/tools/tzcode/tzfile.h (revision 0) |
@@ -0,0 +1,180 @@ |
+#ifndef TZFILE_H |
+ |
+#define TZFILE_H |
+ |
+/* |
+** This file is in the public domain, so clarified as of |
+** 1996-06-05 by Arthur David Olson. |
+*/ |
+ |
+/* |
+** This header is for use ONLY with the time conversion code. |
+** There is no guarantee that it will remain unchanged, |
+** or that it will remain at all. |
+** Do NOT copy it to any system include directory. |
+** Thank you! |
+*/ |
+ |
+/* |
+** ID |
+*/ |
+ |
+#ifndef lint |
+#ifndef NOID |
+static char tzfilehid[] = "@(#)tzfile.h 8.1"; |
+#endif /* !defined NOID */ |
+#endif /* !defined lint */ |
+ |
+/* |
+** Information about time zone files. |
+*/ |
+ |
+#ifndef TZDIR |
+#define TZDIR "/usr/local/etc/zoneinfo" /* Time zone object file directory */ |
+#endif /* !defined TZDIR */ |
+ |
+#ifndef TZDEFAULT |
+#define TZDEFAULT "localtime" |
+#endif /* !defined TZDEFAULT */ |
+ |
+#ifndef TZDEFRULES |
+#define TZDEFRULES "posixrules" |
+#endif /* !defined TZDEFRULES */ |
+ |
+/* |
+** Each file begins with. . . |
+*/ |
+ |
+#define TZ_MAGIC "TZif" |
+ |
+struct tzhead { |
+ char tzh_magic[4]; /* TZ_MAGIC */ |
+ char tzh_version[1]; /* '\0' or '2' as of 2005 */ |
+ char tzh_reserved[15]; /* reserved--must be zero */ |
+ char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */ |
+ char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */ |
+ char tzh_leapcnt[4]; /* coded number of leap seconds */ |
+ char tzh_timecnt[4]; /* coded number of transition times */ |
+ char tzh_typecnt[4]; /* coded number of local time types */ |
+ char tzh_charcnt[4]; /* coded number of abbr. chars */ |
+}; |
+ |
+/* |
+** . . .followed by. . . |
+** |
+** tzh_timecnt (char [4])s coded transition times a la time(2) |
+** tzh_timecnt (unsigned char)s types of local time starting at above |
+** tzh_typecnt repetitions of |
+** one (char [4]) coded UTC offset in seconds |
+** one (unsigned char) used to set tm_isdst |
+** one (unsigned char) that's an abbreviation list index |
+** tzh_charcnt (char)s '\0'-terminated zone abbreviations |
+** tzh_leapcnt repetitions of |
+** one (char [4]) coded leap second transition times |
+** one (char [4]) total correction after above |
+** tzh_ttisstdcnt (char)s indexed by type; if TRUE, transition |
+** time is standard time, if FALSE, |
+** transition time is wall clock time |
+** if absent, transition times are |
+** assumed to be wall clock time |
+** tzh_ttisgmtcnt (char)s indexed by type; if TRUE, transition |
+** time is UTC, if FALSE, |
+** transition time is local time |
+** if absent, transition times are |
+** assumed to be local time |
+*/ |
+ |
+/* |
+** If tzh_version is '2' or greater, the above is followed by a second instance |
+** of tzhead and a second instance of the data in which each coded transition |
+** time uses 8 rather than 4 chars, |
+** then a POSIX-TZ-environment-variable-style string for use in handling |
+** instants after the last transition time stored in the file |
+** (with nothing between the newlines if there is no POSIX representation for |
+** such instants). |
+*/ |
+ |
+/* |
+** In the current implementation, "tzset()" refuses to deal with files that |
+** exceed any of the limits below. |
+*/ |
+ |
+#ifndef TZ_MAX_TIMES |
+#define TZ_MAX_TIMES 1200 |
+#endif /* !defined TZ_MAX_TIMES */ |
+ |
+#ifndef TZ_MAX_TYPES |
+#ifndef NOSOLAR |
+#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */ |
+#endif /* !defined NOSOLAR */ |
+#ifdef NOSOLAR |
+/* |
+** Must be at least 14 for Europe/Riga as of Jan 12 1995, |
+** as noted by Earl Chew. |
+*/ |
+#define TZ_MAX_TYPES 20 /* Maximum number of local time types */ |
+#endif /* !defined NOSOLAR */ |
+#endif /* !defined TZ_MAX_TYPES */ |
+ |
+#ifndef TZ_MAX_CHARS |
+#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */ |
+ /* (limited by what unsigned chars can hold) */ |
+#endif /* !defined TZ_MAX_CHARS */ |
+ |
+#ifndef TZ_MAX_LEAPS |
+#define TZ_MAX_LEAPS 50 /* Maximum number of leap second corrections */ |
+#endif /* !defined TZ_MAX_LEAPS */ |
+ |
+#define SECSPERMIN 60 |
+#define MINSPERHOUR 60 |
+#define HOURSPERDAY 24 |
+#define DAYSPERWEEK 7 |
+#define DAYSPERNYEAR 365 |
+#define DAYSPERLYEAR 366 |
+#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR) |
+#define SECSPERDAY ((long) SECSPERHOUR * HOURSPERDAY) |
+#define MONSPERYEAR 12 |
+ |
+#define TM_SUNDAY 0 |
+#define TM_MONDAY 1 |
+#define TM_TUESDAY 2 |
+#define TM_WEDNESDAY 3 |
+#define TM_THURSDAY 4 |
+#define TM_FRIDAY 5 |
+#define TM_SATURDAY 6 |
+ |
+#define TM_JANUARY 0 |
+#define TM_FEBRUARY 1 |
+#define TM_MARCH 2 |
+#define TM_APRIL 3 |
+#define TM_MAY 4 |
+#define TM_JUNE 5 |
+#define TM_JULY 6 |
+#define TM_AUGUST 7 |
+#define TM_SEPTEMBER 8 |
+#define TM_OCTOBER 9 |
+#define TM_NOVEMBER 10 |
+#define TM_DECEMBER 11 |
+ |
+#define TM_YEAR_BASE 1900 |
+ |
+#define EPOCH_YEAR 1970 |
+#define EPOCH_WDAY TM_THURSDAY |
+ |
+#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) |
+ |
+/* |
+** Since everything in isleap is modulo 400 (or a factor of 400), we know that |
+** isleap(y) == isleap(y % 400) |
+** and so |
+** isleap(a + b) == isleap((a + b) % 400) |
+** or |
+** isleap(a + b) == isleap(a % 400 + b % 400) |
+** This is true even if % means modulo rather than Fortran remainder |
+** (which is allowed by C89 but not C99). |
+** We use this to avoid addition overflow problems. |
+*/ |
+ |
+#define isleap_sum(a, b) isleap((a) % 400 + (b) % 400) |
+ |
+#endif /* !defined TZFILE_H */ |
Property changes on: icu46/source/tools/tzcode/tzfile.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |