mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +00:00
92bd70fb85
This patch updates files coming from tzcode to the versions in tzcode 2017b. A couple of changes to other glibc code are needed. time/tzset.c was using the SECSPERDAY macro from tzfile.h, which no longer defines that macro, so a local definition is added to tzset.c. Because timezone/private.h now defines the _ macro whenever HAVE_GETTEXT is true, even if it was previously defined, it is also necessary to avoid a conflict with the definition in include/libintl.h. Defining _ISOMAC is the obvious way to avoid such internal definitions being visible, together with defining TZ_DOMAIN so that zic and zdump continue to get the messages from the libc domain as desired. However, zic and zdump rely on PKGVERSION and REPORT_BUGS_TO from config.h, which is not included by default with _ISOMAC, so -include config.h needs adding to the options for these programs as well. Together those changes allow unmodified tzcode 2017b sources to work in glibc. Tested for x86_64. * timezone/private.h: Update from tzcode 2017b. * timezone/tzfile.h: Likewise. * timezone/tzselect.ksh: Likewise. * timezone/zdump.c: Likewise. * timezone/zic.c: Likewise. * timezone/Makefile (tz-cflags): Add -D_ISOMAC -DTZ_DOMAIN='"libc"' -include $(common-objpfx)config.h. * time/tzset.c (SECSPERDAY): New macro.
653 lines
16 KiB
C
653 lines
16 KiB
C
#ifndef PRIVATE_H
|
|
|
|
#define PRIVATE_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!
|
|
*/
|
|
|
|
/* This string was in the Factory zone through version 2016f. */
|
|
#define GRANDPARENTED "Local time zone must be set--see zic manual page"
|
|
|
|
/*
|
|
** Defaults for preprocessor symbols.
|
|
** You can override these in your C compiler options, e.g. '-DHAVE_GETTEXT=1'.
|
|
*/
|
|
|
|
#ifndef HAVE_DECL_ASCTIME_R
|
|
#define HAVE_DECL_ASCTIME_R 1
|
|
#endif
|
|
|
|
#ifndef HAVE_GETTEXT
|
|
#define HAVE_GETTEXT 0
|
|
#endif /* !defined HAVE_GETTEXT */
|
|
|
|
#ifndef HAVE_INCOMPATIBLE_CTIME_R
|
|
#define HAVE_INCOMPATIBLE_CTIME_R 0
|
|
#endif /* !defined INCOMPATIBLE_CTIME_R */
|
|
|
|
#ifndef HAVE_LINK
|
|
#define HAVE_LINK 1
|
|
#endif /* !defined HAVE_LINK */
|
|
|
|
#ifndef HAVE_POSIX_DECLS
|
|
#define HAVE_POSIX_DECLS 1
|
|
#endif
|
|
|
|
#ifndef HAVE_STRDUP
|
|
#define HAVE_STRDUP 1
|
|
#endif
|
|
|
|
#ifndef HAVE_SYMLINK
|
|
#define HAVE_SYMLINK 1
|
|
#endif /* !defined HAVE_SYMLINK */
|
|
|
|
#ifndef HAVE_SYS_STAT_H
|
|
#define HAVE_SYS_STAT_H 1
|
|
#endif /* !defined HAVE_SYS_STAT_H */
|
|
|
|
#ifndef HAVE_SYS_WAIT_H
|
|
#define HAVE_SYS_WAIT_H 1
|
|
#endif /* !defined HAVE_SYS_WAIT_H */
|
|
|
|
#ifndef HAVE_UNISTD_H
|
|
#define HAVE_UNISTD_H 1
|
|
#endif /* !defined HAVE_UNISTD_H */
|
|
|
|
#ifndef HAVE_UTMPX_H
|
|
#define HAVE_UTMPX_H 1
|
|
#endif /* !defined HAVE_UTMPX_H */
|
|
|
|
#ifndef NETBSD_INSPIRED
|
|
# define NETBSD_INSPIRED 1
|
|
#endif
|
|
|
|
#if HAVE_INCOMPATIBLE_CTIME_R
|
|
#define asctime_r _incompatible_asctime_r
|
|
#define ctime_r _incompatible_ctime_r
|
|
#endif /* HAVE_INCOMPATIBLE_CTIME_R */
|
|
|
|
/* Enable tm_gmtoff and tm_zone on GNUish systems. */
|
|
#define _GNU_SOURCE 1
|
|
/* Fix asctime_r on Solaris 11. */
|
|
#define _POSIX_PTHREAD_SEMANTICS 1
|
|
/* Enable strtoimax on pre-C99 Solaris 11. */
|
|
#define __EXTENSIONS__ 1
|
|
|
|
/*
|
|
** Nested includes
|
|
*/
|
|
|
|
/* Avoid clashes with NetBSD by renaming NetBSD's declarations. */
|
|
#define localtime_rz sys_localtime_rz
|
|
#define mktime_z sys_mktime_z
|
|
#define posix2time_z sys_posix2time_z
|
|
#define time2posix_z sys_time2posix_z
|
|
#define timezone_t sys_timezone_t
|
|
#define tzalloc sys_tzalloc
|
|
#define tzfree sys_tzfree
|
|
#include <time.h>
|
|
#undef localtime_rz
|
|
#undef mktime_z
|
|
#undef posix2time_z
|
|
#undef time2posix_z
|
|
#undef timezone_t
|
|
#undef tzalloc
|
|
#undef tzfree
|
|
|
|
#include <sys/types.h> /* for time_t */
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <limits.h> /* for CHAR_BIT et al. */
|
|
#include <stdlib.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#ifndef ENAMETOOLONG
|
|
# define ENAMETOOLONG EINVAL
|
|
#endif
|
|
#ifndef ENOTSUP
|
|
# define ENOTSUP EINVAL
|
|
#endif
|
|
#ifndef EOVERFLOW
|
|
# define EOVERFLOW EINVAL
|
|
#endif
|
|
|
|
#if HAVE_GETTEXT
|
|
#include <libintl.h>
|
|
#endif /* HAVE_GETTEXT */
|
|
|
|
#if HAVE_SYS_WAIT_H
|
|
#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */
|
|
#endif /* HAVE_SYS_WAIT_H */
|
|
|
|
#ifndef WIFEXITED
|
|
#define WIFEXITED(status) (((status) & 0xff) == 0)
|
|
#endif /* !defined WIFEXITED */
|
|
#ifndef WEXITSTATUS
|
|
#define WEXITSTATUS(status) (((status) >> 8) & 0xff)
|
|
#endif /* !defined WEXITSTATUS */
|
|
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h> /* for F_OK, R_OK, and other POSIX goodness */
|
|
#endif /* HAVE_UNISTD_H */
|
|
|
|
#ifndef HAVE_STRFTIME_L
|
|
# if _POSIX_VERSION < 200809
|
|
# define HAVE_STRFTIME_L 0
|
|
# else
|
|
# define HAVE_STRFTIME_L 1
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef F_OK
|
|
#define F_OK 0
|
|
#endif /* !defined F_OK */
|
|
#ifndef R_OK
|
|
#define R_OK 4
|
|
#endif /* !defined R_OK */
|
|
|
|
/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
|
|
#define is_digit(c) ((unsigned)(c) - '0' <= 9)
|
|
|
|
/*
|
|
** Define HAVE_STDINT_H's default value here, rather than at the
|
|
** start, since __GLIBC__ and INTMAX_MAX's values depend on
|
|
** previously-included files. glibc 2.1 and Solaris 10 and later have
|
|
** stdint.h, even with pre-C99 compilers.
|
|
*/
|
|
#ifndef HAVE_STDINT_H
|
|
#define HAVE_STDINT_H \
|
|
(199901 <= __STDC_VERSION__ \
|
|
|| 2 < __GLIBC__ + (1 <= __GLIBC_MINOR__) \
|
|
|| __CYGWIN__ || INTMAX_MAX)
|
|
#endif /* !defined HAVE_STDINT_H */
|
|
|
|
#if HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#endif /* !HAVE_STDINT_H */
|
|
|
|
#ifndef HAVE_INTTYPES_H
|
|
# define HAVE_INTTYPES_H HAVE_STDINT_H
|
|
#endif
|
|
#if HAVE_INTTYPES_H
|
|
# include <inttypes.h>
|
|
#endif
|
|
|
|
/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */
|
|
#ifdef __LONG_LONG_MAX__
|
|
# ifndef LLONG_MAX
|
|
# define LLONG_MAX __LONG_LONG_MAX__
|
|
# endif
|
|
# ifndef LLONG_MIN
|
|
# define LLONG_MIN (-1 - LLONG_MAX)
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef INT_FAST64_MAX
|
|
# ifdef LLONG_MAX
|
|
typedef long long int_fast64_t;
|
|
# define INT_FAST64_MIN LLONG_MIN
|
|
# define INT_FAST64_MAX LLONG_MAX
|
|
# else
|
|
# if LONG_MAX >> 31 < 0xffffffff
|
|
Please use a compiler that supports a 64-bit integer type (or wider);
|
|
you may need to compile with "-DHAVE_STDINT_H".
|
|
# endif
|
|
typedef long int_fast64_t;
|
|
# define INT_FAST64_MIN LONG_MIN
|
|
# define INT_FAST64_MAX LONG_MAX
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef PRIdFAST64
|
|
# if INT_FAST64_MAX == LLONG_MAX
|
|
# define PRIdFAST64 "lld"
|
|
# else
|
|
# define PRIdFAST64 "ld"
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef SCNdFAST64
|
|
# define SCNdFAST64 PRIdFAST64
|
|
#endif
|
|
|
|
#ifndef INT_FAST32_MAX
|
|
# if INT_MAX >> 31 == 0
|
|
typedef long int_fast32_t;
|
|
# define INT_FAST32_MAX LONG_MAX
|
|
# define INT_FAST32_MIN LONG_MIN
|
|
# else
|
|
typedef int int_fast32_t;
|
|
# define INT_FAST32_MAX INT_MAX
|
|
# define INT_FAST32_MIN INT_MIN
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef INTMAX_MAX
|
|
# ifdef LLONG_MAX
|
|
typedef long long intmax_t;
|
|
# define strtoimax strtoll
|
|
# define INTMAX_MAX LLONG_MAX
|
|
# define INTMAX_MIN LLONG_MIN
|
|
# else
|
|
typedef long intmax_t;
|
|
# define strtoimax strtol
|
|
# define INTMAX_MAX LONG_MAX
|
|
# define INTMAX_MIN LONG_MIN
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef PRIdMAX
|
|
# if INTMAX_MAX == LLONG_MAX
|
|
# define PRIdMAX "lld"
|
|
# else
|
|
# define PRIdMAX "ld"
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef UINT_FAST64_MAX
|
|
# if defined ULLONG_MAX || defined __LONG_LONG_MAX__
|
|
typedef unsigned long long uint_fast64_t;
|
|
# else
|
|
# if ULONG_MAX >> 31 >> 1 < 0xffffffff
|
|
Please use a compiler that supports a 64-bit integer type (or wider);
|
|
you may need to compile with "-DHAVE_STDINT_H".
|
|
# endif
|
|
typedef unsigned long uint_fast64_t;
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef UINTMAX_MAX
|
|
# if defined ULLONG_MAX || defined __LONG_LONG_MAX__
|
|
typedef unsigned long long uintmax_t;
|
|
# else
|
|
typedef unsigned long uintmax_t;
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef PRIuMAX
|
|
# if defined ULLONG_MAX || defined __LONG_LONG_MAX__
|
|
# define PRIuMAX "llu"
|
|
# else
|
|
# define PRIuMAX "lu"
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef INT32_MAX
|
|
#define INT32_MAX 0x7fffffff
|
|
#endif /* !defined INT32_MAX */
|
|
#ifndef INT32_MIN
|
|
#define INT32_MIN (-1 - INT32_MAX)
|
|
#endif /* !defined INT32_MIN */
|
|
|
|
#ifndef SIZE_MAX
|
|
#define SIZE_MAX ((size_t) -1)
|
|
#endif
|
|
|
|
#if 2 < __GNUC__ + (96 <= __GNUC_MINOR__)
|
|
# define ATTRIBUTE_CONST __attribute__ ((const))
|
|
# define ATTRIBUTE_PURE __attribute__ ((__pure__))
|
|
# define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
|
|
#else
|
|
# define ATTRIBUTE_CONST /* empty */
|
|
# define ATTRIBUTE_PURE /* empty */
|
|
# define ATTRIBUTE_FORMAT(spec) /* empty */
|
|
#endif
|
|
|
|
#if !defined _Noreturn && __STDC_VERSION__ < 201112
|
|
# if 2 < __GNUC__ + (8 <= __GNUC_MINOR__)
|
|
# define _Noreturn __attribute__ ((__noreturn__))
|
|
# else
|
|
# define _Noreturn
|
|
# endif
|
|
#endif
|
|
|
|
#if __STDC_VERSION__ < 199901 && !defined restrict
|
|
# define restrict /* empty */
|
|
#endif
|
|
|
|
/*
|
|
** Workarounds for compilers/systems.
|
|
*/
|
|
|
|
#ifndef EPOCH_LOCAL
|
|
# define EPOCH_LOCAL 0
|
|
#endif
|
|
#ifndef EPOCH_OFFSET
|
|
# define EPOCH_OFFSET 0
|
|
#endif
|
|
|
|
/*
|
|
** Compile with -Dtime_tz=T to build the tz package with a private
|
|
** time_t type equivalent to T rather than the system-supplied time_t.
|
|
** This debugging feature can test unusual design decisions
|
|
** (e.g., time_t wider than 'long', or unsigned time_t) even on
|
|
** typical platforms.
|
|
*/
|
|
#if defined time_tz || EPOCH_LOCAL || EPOCH_OFFSET != 0
|
|
# ifdef LOCALTIME_IMPLEMENTATION
|
|
static time_t sys_time(time_t *x) { return time(x); }
|
|
# endif
|
|
|
|
typedef time_tz tz_time_t;
|
|
|
|
# undef ctime
|
|
# define ctime tz_ctime
|
|
# undef ctime_r
|
|
# define ctime_r tz_ctime_r
|
|
# undef difftime
|
|
# define difftime tz_difftime
|
|
# undef gmtime
|
|
# define gmtime tz_gmtime
|
|
# undef gmtime_r
|
|
# define gmtime_r tz_gmtime_r
|
|
# undef localtime
|
|
# define localtime tz_localtime
|
|
# undef localtime_r
|
|
# define localtime_r tz_localtime_r
|
|
# undef localtime_rz
|
|
# define localtime_rz tz_localtime_rz
|
|
# undef mktime
|
|
# define mktime tz_mktime
|
|
# undef mktime_z
|
|
# define mktime_z tz_mktime_z
|
|
# undef offtime
|
|
# define offtime tz_offtime
|
|
# undef posix2time
|
|
# define posix2time tz_posix2time
|
|
# undef posix2time_z
|
|
# define posix2time_z tz_posix2time_z
|
|
# undef time
|
|
# define time tz_time
|
|
# undef time2posix
|
|
# define time2posix tz_time2posix
|
|
# undef time2posix_z
|
|
# define time2posix_z tz_time2posix_z
|
|
# undef time_t
|
|
# define time_t tz_time_t
|
|
# undef timegm
|
|
# define timegm tz_timegm
|
|
# undef timelocal
|
|
# define timelocal tz_timelocal
|
|
# undef timeoff
|
|
# define timeoff tz_timeoff
|
|
# undef tzalloc
|
|
# define tzalloc tz_tzalloc
|
|
# undef tzfree
|
|
# define tzfree tz_tzfree
|
|
# undef tzset
|
|
# define tzset tz_tzset
|
|
# undef tzsetwall
|
|
# define tzsetwall tz_tzsetwall
|
|
|
|
char *ctime(time_t const *);
|
|
char *ctime_r(time_t const *, char *);
|
|
double difftime(time_t, time_t);
|
|
struct tm *gmtime(time_t const *);
|
|
struct tm *gmtime_r(time_t const *restrict, struct tm *restrict);
|
|
struct tm *localtime(time_t const *);
|
|
struct tm *localtime_r(time_t const *restrict, struct tm *restrict);
|
|
time_t mktime(struct tm *);
|
|
time_t time(time_t *);
|
|
void tzset(void);
|
|
#endif
|
|
|
|
#if !HAVE_DECL_ASCTIME_R && !defined asctime_r
|
|
extern char *asctime_r(struct tm const *restrict, char *restrict);
|
|
#endif
|
|
|
|
#if !HAVE_POSIX_DECLS
|
|
# ifdef USG_COMPAT
|
|
# ifndef timezone
|
|
extern long timezone;
|
|
# endif
|
|
# ifndef daylight
|
|
extern int daylight;
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#if defined ALTZONE && !defined altzone
|
|
extern long altzone;
|
|
#endif
|
|
|
|
/*
|
|
** The STD_INSPIRED functions are similar, but most also need
|
|
** declarations if time_tz is defined.
|
|
*/
|
|
|
|
#ifdef STD_INSPIRED
|
|
# if !defined tzsetwall || defined time_tz
|
|
void tzsetwall(void);
|
|
# endif
|
|
# if !defined offtime || defined time_tz
|
|
struct tm *offtime(time_t const *, long);
|
|
# endif
|
|
# if !defined timegm || defined time_tz
|
|
time_t timegm(struct tm *);
|
|
# endif
|
|
# if !defined timelocal || defined time_tz
|
|
time_t timelocal(struct tm *);
|
|
# endif
|
|
# if !defined timeoff || defined time_tz
|
|
time_t timeoff(struct tm *, long);
|
|
# endif
|
|
# if !defined time2posix || defined time_tz
|
|
time_t time2posix(time_t);
|
|
# endif
|
|
# if !defined posix2time || defined time_tz
|
|
time_t posix2time(time_t);
|
|
# endif
|
|
#endif
|
|
|
|
/* Infer TM_ZONE on systems where this information is known, but suppress
|
|
guessing if NO_TM_ZONE is defined. Similarly for TM_GMTOFF. */
|
|
#if (defined __GLIBC__ \
|
|
|| defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ \
|
|
|| (defined __APPLE__ && defined __MACH__))
|
|
# if !defined TM_GMTOFF && !defined NO_TM_GMTOFF
|
|
# define TM_GMTOFF tm_gmtoff
|
|
# endif
|
|
# if !defined TM_ZONE && !defined NO_TM_ZONE
|
|
# define TM_ZONE tm_zone
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
** Define functions that are ABI compatible with NetBSD but have
|
|
** better prototypes. NetBSD 6.1.4 defines a pointer type timezone_t
|
|
** and labors under the misconception that 'const timezone_t' is a
|
|
** pointer to a constant. This use of 'const' is ineffective, so it
|
|
** is not done here. What we call 'struct state' NetBSD calls
|
|
** 'struct __state', but this is a private name so it doesn't matter.
|
|
*/
|
|
#if NETBSD_INSPIRED
|
|
typedef struct state *timezone_t;
|
|
struct tm *localtime_rz(timezone_t restrict, time_t const *restrict,
|
|
struct tm *restrict);
|
|
time_t mktime_z(timezone_t restrict, struct tm *restrict);
|
|
timezone_t tzalloc(char const *);
|
|
void tzfree(timezone_t);
|
|
# ifdef STD_INSPIRED
|
|
# if !defined posix2time_z || defined time_tz
|
|
time_t posix2time_z(timezone_t, time_t) ATTRIBUTE_PURE;
|
|
# endif
|
|
# if !defined time2posix_z || defined time_tz
|
|
time_t time2posix_z(timezone_t, time_t) ATTRIBUTE_PURE;
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
** Finally, some convenience items.
|
|
*/
|
|
|
|
#if __STDC_VERSION__ < 199901
|
|
# define true 1
|
|
# define false 0
|
|
# define bool int
|
|
#else
|
|
# include <stdbool.h>
|
|
#endif
|
|
|
|
#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT)
|
|
#define TYPE_SIGNED(type) (((type) -1) < 0)
|
|
#define TWOS_COMPLEMENT(t) ((t) ~ (t) 0 < 0)
|
|
|
|
/* Max and min values of the integer type T, of which only the bottom
|
|
B bits are used, and where the highest-order used bit is considered
|
|
to be a sign bit if T is signed. */
|
|
#define MAXVAL(t, b) \
|
|
((t) (((t) 1 << ((b) - 1 - TYPE_SIGNED(t))) \
|
|
- 1 + ((t) 1 << ((b) - 1 - TYPE_SIGNED(t)))))
|
|
#define MINVAL(t, b) \
|
|
((t) (TYPE_SIGNED(t) ? - TWOS_COMPLEMENT(t) - MAXVAL(t, b) : 0))
|
|
|
|
/* The minimum and maximum finite time values. This implementation
|
|
assumes no padding if time_t is signed and either the compiler is
|
|
pre-C11 or time_t is not one of the standard signed integer types. */
|
|
#if 201112 <= __STDC_VERSION__
|
|
static time_t const time_t_min
|
|
= (TYPE_SIGNED(time_t)
|
|
? _Generic((time_t) 0,
|
|
signed char: SCHAR_MIN, short: SHRT_MIN,
|
|
int: INT_MIN, long: LONG_MIN, long long: LLONG_MIN,
|
|
default: MINVAL(time_t, TYPE_BIT(time_t)))
|
|
: 0);
|
|
static time_t const time_t_max
|
|
= (TYPE_SIGNED(time_t)
|
|
? _Generic((time_t) 0,
|
|
signed char: SCHAR_MAX, short: SHRT_MAX,
|
|
int: INT_MAX, long: LONG_MAX, long long: LLONG_MAX,
|
|
default: MAXVAL(time_t, TYPE_BIT(time_t)))
|
|
: -1);
|
|
#else
|
|
static time_t const time_t_min = MINVAL(time_t, TYPE_BIT(time_t));
|
|
static time_t const time_t_max = MAXVAL(time_t, TYPE_BIT(time_t));
|
|
#endif
|
|
|
|
/*
|
|
** 302 / 1000 is log10(2.0) rounded up.
|
|
** Subtract one for the sign bit if the type is signed;
|
|
** add one for integer division truncation;
|
|
** add one more for a minus sign if the type is signed.
|
|
*/
|
|
#define INT_STRLEN_MAXIMUM(type) \
|
|
((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
|
|
1 + TYPE_SIGNED(type))
|
|
|
|
/*
|
|
** INITIALIZE(x)
|
|
*/
|
|
|
|
#ifdef lint
|
|
# define INITIALIZE(x) ((x) = 0)
|
|
#else
|
|
# define INITIALIZE(x)
|
|
#endif
|
|
|
|
#ifndef UNINIT_TRAP
|
|
# define UNINIT_TRAP 0
|
|
#endif
|
|
|
|
/*
|
|
** For the benefit of GNU folk...
|
|
** '_(MSGID)' uses the current locale's message library string for MSGID.
|
|
** The default is to use gettext if available, and use MSGID otherwise.
|
|
*/
|
|
|
|
#if HAVE_GETTEXT
|
|
#define _(msgid) gettext(msgid)
|
|
#else /* !HAVE_GETTEXT */
|
|
#define _(msgid) msgid
|
|
#endif /* !HAVE_GETTEXT */
|
|
|
|
#if !defined TZ_DOMAIN && defined HAVE_GETTEXT
|
|
# define TZ_DOMAIN "tz"
|
|
#endif
|
|
|
|
#if HAVE_INCOMPATIBLE_CTIME_R
|
|
#undef asctime_r
|
|
#undef ctime_r
|
|
char *asctime_r(struct tm const *, char *);
|
|
char *ctime_r(time_t const *, char *);
|
|
#endif /* HAVE_INCOMPATIBLE_CTIME_R */
|
|
|
|
/* Handy macros that are independent of tzfile implementation. */
|
|
|
|
#define YEARSPERREPEAT 400 /* years before a Gregorian repeat */
|
|
|
|
#define SECSPERMIN 60
|
|
#define MINSPERHOUR 60
|
|
#define HOURSPERDAY 24
|
|
#define DAYSPERWEEK 7
|
|
#define DAYSPERNYEAR 365
|
|
#define DAYSPERLYEAR 366
|
|
#define SECSPERHOUR (SECSPERMIN * MINSPERHOUR)
|
|
#define SECSPERDAY ((int_fast32_t) 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)
|
|
|
|
|
|
/*
|
|
** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
|
|
*/
|
|
|
|
#define AVGSECSPERYEAR 31556952L
|
|
#define SECSPERREPEAT \
|
|
((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
|
|
#define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */
|
|
|
|
#endif /* !defined PRIVATE_H */
|