6 ** This file is in the public domain, so clarified as of
7 ** 1996-06-05 by Arthur David Olson.
11 ** This header is for use ONLY with the time conversion code.
12 ** There is no guarantee that it will remain unchanged,
13 ** or that it will remain at all.
14 ** Do NOT copy it to any system include directory.
18 #define GRANDPARENTED "Local time zone must be set--see zic manual page"
21 ** Defaults for preprocessor symbols.
22 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
26 #define HAVE_ADJTIME 1
27 #endif /* !defined HAVE_ADJTIME */
30 #define HAVE_GETTEXT 0
31 #endif /* !defined HAVE_GETTEXT */
33 #ifndef HAVE_INCOMPATIBLE_CTIME_R
34 #define HAVE_INCOMPATIBLE_CTIME_R 0
35 #endif /* !defined INCOMPATIBLE_CTIME_R */
37 #ifndef HAVE_SETTIMEOFDAY
38 #define HAVE_SETTIMEOFDAY 3
39 #endif /* !defined HAVE_SETTIMEOFDAY */
42 #define HAVE_SYMLINK 1
43 #endif /* !defined HAVE_SYMLINK */
45 #ifndef HAVE_SYS_STAT_H
46 #define HAVE_SYS_STAT_H 1
47 #endif /* !defined HAVE_SYS_STAT_H */
49 #ifndef HAVE_SYS_WAIT_H
50 #define HAVE_SYS_WAIT_H 1
51 #endif /* !defined HAVE_SYS_WAIT_H */
54 #define HAVE_UNISTD_H 1
55 #endif /* !defined HAVE_UNISTD_H */
58 #define HAVE_UTMPX_H 0
59 #endif /* !defined HAVE_UTMPX_H */
62 #define LOCALE_HOME "/usr/lib/locale"
63 #endif /* !defined LOCALE_HOME */
65 #if HAVE_INCOMPATIBLE_CTIME_R
66 #define asctime_r _incompatible_asctime_r
67 #define ctime_r _incompatible_ctime_r
68 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
74 #include "sys/types.h" /* for time_t */
78 #include "limits.h" /* for CHAR_BIT et al. */
84 #endif /* HAVE_GETTEXT */
87 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */
88 #endif /* HAVE_SYS_WAIT_H */
91 #define WIFEXITED(status) (((status) & 0xff) == 0)
92 #endif /* !defined WIFEXITED */
94 #define WEXITSTATUS(status) (((status) >> 8) & 0xff)
95 #endif /* !defined WEXITSTATUS */
98 #include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */
99 #endif /* HAVE_UNISTD_H */
103 #endif /* !defined F_OK */
106 #endif /* !defined R_OK */
108 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
109 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
112 ** Define HAVE_STDINT_H's default value here, rather than at the
113 ** start, since __GLIBC__'s value depends on previously-included
115 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.)
117 #ifndef HAVE_STDINT_H
118 #define HAVE_STDINT_H \
119 (199901 <= __STDC_VERSION__ || \
120 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
121 #endif /* !defined HAVE_STDINT_H */
125 #endif /* !HAVE_STDINT_H */
127 #ifndef INT_FAST64_MAX
128 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */
129 #if defined LLONG_MAX || defined __LONG_LONG_MAX__
130 typedef long long int_fast64_t;
131 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
132 #if (LONG_MAX >> 31) < 0xffffffff
133 Please use a compiler that supports a 64-bit integer type (or wider);
134 you may need to compile with "-DHAVE_STDINT_H".
135 #endif /* (LONG_MAX >> 31) < 0xffffffff */
136 typedef long int_fast64_t;
137 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
138 #endif /* !defined INT_FAST64_MAX */
141 #define INT32_MAX 0x7fffffff
142 #endif /* !defined INT32_MAX */
144 #define INT32_MIN (-1 - INT32_MAX)
145 #endif /* !defined INT32_MIN */
148 ** Workarounds for compilers/systems.
152 ** Some time.h implementations don't declare asctime_r.
153 ** Others might define it as a macro.
154 ** Fix the former without affecting the latter.
158 extern char * asctime_r(struct tm const *, char *);
162 ** Private function declarations.
165 char * icalloc(int nelem, int elsize);
166 char * icatalloc(char * old, const char * new);
167 char * icpyalloc(const char * string);
168 char * imalloc(int n);
169 void * irealloc(void * pointer, int size);
170 void icfree(char * pointer);
171 void ifree(char * pointer);
172 const char * scheck(const char * string, const char * format);
175 ** Finally, some convenience items.
180 #endif /* !defined TRUE */
184 #endif /* !defined FALSE */
187 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT)
188 #endif /* !defined TYPE_BIT */
191 #define TYPE_SIGNED(type) (((type) -1) < 0)
192 #endif /* !defined TYPE_SIGNED */
195 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
196 ** it cannot be used in preprocessor directives.
199 #ifndef TYPE_INTEGRAL
200 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
201 #endif /* !defined TYPE_INTEGRAL */
203 #ifndef INT_STRLEN_MAXIMUM
205 ** 302 / 1000 is log10(2.0) rounded up.
206 ** Subtract one for the sign bit if the type is signed;
207 ** add one for integer division truncation;
208 ** add one more for a minus sign if the type is signed.
210 #define INT_STRLEN_MAXIMUM(type) \
211 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
212 1 + TYPE_SIGNED(type))
213 #endif /* !defined INT_STRLEN_MAXIMUM */
222 #endif /* defined lint */
226 #endif /* defined __GNUC__ */
227 #endif /* !defined lint */
228 #endif /* !defined GNUC_or_lint */
232 #define INITIALIZE(x) ((x) = 0)
233 #endif /* defined GNUC_or_lint */
235 #define INITIALIZE(x)
236 #endif /* !defined GNUC_or_lint */
237 #endif /* !defined INITIALIZE */
240 ** For the benefit of GNU folk...
241 ** `_(MSGID)' uses the current locale's message library string for MSGID.
242 ** The default is to use gettext if available, and use MSGID otherwise.
247 #define _(msgid) gettext(msgid)
248 #else /* !HAVE_GETTEXT */
249 #define _(msgid) msgid
250 #endif /* !HAVE_GETTEXT */
251 #endif /* !defined _ */
254 #define TZ_DOMAIN "tz"
255 #endif /* !defined TZ_DOMAIN */
257 #if HAVE_INCOMPATIBLE_CTIME_R
260 char *asctime_r(struct tm const *, char *);
261 char *ctime_r(time_t const *, char *);
262 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
264 #ifndef YEARSPERREPEAT
265 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */
266 #endif /* !defined YEARSPERREPEAT */
269 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
272 #ifndef AVGSECSPERYEAR
273 #define AVGSECSPERYEAR 31556952L
274 #endif /* !defined AVGSECSPERYEAR */
276 #ifndef SECSPERREPEAT
277 #define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
278 #endif /* !defined SECSPERREPEAT */
280 #ifndef SECSPERREPEAT_BITS
281 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */
282 #endif /* !defined SECSPERREPEAT_BITS */
285 ** UNIX was a registered trademark of The Open Group in 2003.
288 #endif /* !defined PRIVATE_H */