zic.tproj/private.h

   1 #ifndef PRIVATE_H
   2
   3 #define PRIVATE_H
   4
   5 /*
   6 ** This file is in the public domain, so clarified as of
   7 ** 1996-06-05 by Arthur David Olson.
   8 */
   9
  10 /*
  11  * FreeBSD modifications: separate libc's privates from zic's.
  12  * This makes it easier when we need to update one but not the other.
  13  * I have removed all of the ifdef spaghetti which is not relevant to
  14  * zic from this file.
  15  *
  16  * $FreeBSD: head/contrib/tzcode/zic/private.h 207590 2010-05-03 22:32:26Z emaste $
  17  */
  18
  19 /*
  20 ** This header is for use ONLY with the time conversion code.
  21 ** There is no guarantee that it will remain unchanged,
  22 ** or that it will remain at all.
  23 ** Do NOT copy it to any system include directory.
  24 ** Thank you!
  25 */
  26
  27 /*
  28 ** ID
  29 */
  30
  31 #ifndef lint
  32 #ifndef NOID
  33 static const char       privatehid[] = "@(#)private.h   8.6";
  34 #endif /* !defined NOID */
  35 #endif /* !defined lint */
  36
  37 #define GRANDPARENTED   "Local time zone must be set--use tzsetup"
  38
  39 /*
  40 ** Defaults for preprocessor symbols.
  41 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  42 */
  43
  44 #ifndef HAVE_GETTEXT
  45 #define HAVE_GETTEXT            0
  46 #endif /* !defined HAVE_GETTEXT */
  47
  48 #ifndef HAVE_SYMLINK
  49 #define HAVE_SYMLINK            1
  50 #endif /* !defined HAVE_SYMLINK */
  51
  52 #ifndef HAVE_SYS_STAT_H
  53 #define HAVE_SYS_STAT_H         1
  54 #endif /* !defined HAVE_SYS_STAT_H */
  55
  56 #ifndef HAVE_SYS_WAIT_H
  57 #define HAVE_SYS_WAIT_H         1
  58 #endif /* !defined HAVE_SYS_WAIT_H */
  59
  60 #ifndef HAVE_UNISTD_H
  61 #define HAVE_UNISTD_H           1
  62 #endif /* !defined HAVE_UNISTD_H */
  63
  64 /*
  65 ** Nested includes
  66 */
  67
  68 #include "sys/types.h"  /* for time_t */
  69 #include "stdio.h"
  70 #include "errno.h"
  71 #include "string.h"
  72 #include "limits.h"     /* for CHAR_BIT et al. */
  73 #include "time.h"
  74 #include "stdlib.h"
  75
  76 #if HAVE_GETTEXT
  77 #include "libintl.h"
  78 #endif /* HAVE_GETTEXT */
  79
  80 #if HAVE_SYS_WAIT_H
  81 #include <sys/wait.h>   /* for WIFEXITED and WEXITSTATUS */
  82 #endif /* HAVE_SYS_WAIT_H */
  83
  84 #if HAVE_UNISTD_H
  85 #include "unistd.h"     /* for F_OK and R_OK, and other POSIX goodness */
  86 #endif /* HAVE_UNISTD_H */
  87
  88 #ifndef F_OK
  89 #define F_OK    0
  90 #endif /* !defined F_OK */
  91 #ifndef R_OK
  92 #define R_OK    4
  93 #endif /* !defined R_OK */
  94
  95 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
  96 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
  97
  98 /*
  99 ** Define HAVE_STDINT_H's default value here, rather than at the
 100 ** start, since __GLIBC__'s value depends on previously-included
 101 ** files.
 102 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.)
 103 */
 104 #ifndef HAVE_STDINT_H
 105 #define HAVE_STDINT_H \
 106        (199901 <= __STDC_VERSION__ || \
 107        2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
 108 #endif /* !defined HAVE_STDINT_H */
 109
 110 #if HAVE_STDINT_H
 111 #include "stdint.h"
 112 #endif /* !HAVE_STDINT_H */
 113
 114 #ifndef INT_FAST64_MAX
 115 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX.  */
 116 #if defined LLONG_MAX || defined __LONG_LONG_MAX__
 117 typedef long long      int_fast64_t;
 118 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
 119 #if (LONG_MAX >> 31) < 0xffffffff
 120 Please use a compiler that supports a 64-bit integer type (or wider);
 121 you may need to compile with "-DHAVE_STDINT_H".
 122 #endif /* (LONG_MAX >> 31) < 0xffffffff */
 123 typedef long           int_fast64_t;
 124 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
 125 #endif /* !defined INT_FAST64_MAX */
 126
 127 #ifndef INT32_MAX
 128 #define INT32_MAX 0x7fffffff
 129 #endif /* !defined INT32_MAX */
 130 #ifndef INT32_MIN
 131 #define INT32_MIN (-1 - INT32_MAX)
 132 #endif /* !defined INT32_MIN */
 133
 134 /*
 135 ** Workarounds for compilers/systems.
 136  */
 137
 138 /*
 139 ** Some time.h implementations don't declare asctime_r.
 140 ** Others might define it as a macro.
 141 ** Fix the former without affecting the latter.
 142  */
 143 #ifndef asctime_r
 144 extern char *  asctime_r(struct tm const *, char *);
 145 #endif
 146
 147
 148
 149 /*
 150 ** Private function declarations.
 151 */
 152 char *          icalloc (int nelem, int elsize);
 153 char *          icatalloc (char * old, const char * new);
 154 char *          icpyalloc (const char * string);
 155 char *          imalloc (int n);
 156 void *          irealloc (void * pointer, int size);
 157 void            icfree (char * pointer);
 158 void            ifree (char * pointer);
 159 const char *    scheck (const char *string, const char *format);
 160
 161 /*
 162 ** Finally, some convenience items.
 163 */
 164
 165 #ifndef TRUE
 166 #define TRUE    1
 167 #endif /* !defined TRUE */
 168
 169 #ifndef FALSE
 170 #define FALSE   0
 171 #endif /* !defined FALSE */
 172
 173 #ifndef TYPE_BIT
 174 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 175 #endif /* !defined TYPE_BIT */
 176
 177 #ifndef TYPE_SIGNED
 178 #define TYPE_SIGNED(type) (((type) -1) < 0)
 179 #endif /* !defined TYPE_SIGNED */
 180
 181 /*
 182 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 183 ** it cannot be used in preprocessor directives.
 184 */
 185
 186 #ifndef TYPE_INTEGRAL
 187 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 188 #endif /* !defined TYPE_INTEGRAL */
 189
 190 #ifndef INT_STRLEN_MAXIMUM
 191 /*
 192 ** 302 / 1000 is log10(2.0) rounded up.
 193 ** Subtract one for the sign bit if the type is signed;
 194 ** add one for integer division truncation;
 195 ** add one more for a minus sign if the type is signed.
 196 */
 197 #define INT_STRLEN_MAXIMUM(type) \
 198         ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
 199         1 + TYPE_SIGNED(type))
 200 #endif /* !defined INT_STRLEN_MAXIMUM */
 201
 202 /*
 203 ** INITIALIZE(x)
 204 */
 205
 206 #ifndef GNUC_or_lint
 207 #ifdef lint
 208 #define GNUC_or_lint
 209 #endif /* defined lint */
 210 #ifndef lint
 211 #ifdef __GNUC__
 212 #define GNUC_or_lint
 213 #endif /* defined __GNUC__ */
 214 #endif /* !defined lint */
 215 #endif /* !defined GNUC_or_lint */
 216
 217 #ifndef INITIALIZE
 218 #ifdef GNUC_or_lint
 219 #define INITIALIZE(x)   ((x) = 0)
 220 #endif /* defined GNUC_or_lint */
 221 #ifndef GNUC_or_lint
 222 #define INITIALIZE(x)
 223 #endif /* !defined GNUC_or_lint */
 224 #endif /* !defined INITIALIZE */
 225
 226 /*
 227 ** For the benefit of GNU folk...
 228 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 229 ** The default is to use gettext if available, and use MSGID otherwise.
 230 */
 231
 232 #ifndef _
 233 #if HAVE_GETTEXT
 234 #define _(msgid) gettext(msgid)
 235 #else /* !HAVE_GETTEXT */
 236 #define _(msgid) msgid
 237 #endif /* !HAVE_GETTEXT */
 238 #endif /* !defined _ */
 239
 240 #ifndef TZ_DOMAIN
 241 #define TZ_DOMAIN "tz"
 242 #endif /* !defined TZ_DOMAIN */
 243
 244 /*
 245 ** UNIX was a registered trademark of The Open Group in 2003.
 246 */
 247
 248 #ifndef YEARSPERREPEAT
 249 #define YEARSPERREPEAT          400     /* years before a Gregorian repeat */
 250 #endif /* !defined YEARSPERREPEAT */
 251
 252 /*
 253 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
 254 */
 255
 256 #ifndef AVGSECSPERYEAR
 257 #define AVGSECSPERYEAR          31556952L
 258 #endif /* !defined AVGSECSPERYEAR */
 259
 260 #ifndef SECSPERREPEAT
 261 #define SECSPERREPEAT           ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
 262 #endif /* !defined SECSPERREPEAT */
 263
 264 #ifndef SECSPERREPEAT_BITS
 265 #define SECSPERREPEAT_BITS      34      /* ceil(log2(SECSPERREPEAT)) */
 266 #endif /* !defined SECSPERREPEAT_BITS */
 267
 268   /*
 269   ** UNIX was a registered trademark of The Open Group in 2003.
 270   */
 271
 272 #endif /* !defined PRIVATE_H */