stdtime/private.h

   1 /* $FreeBSD: src/lib/libc/stdtime/private.h,v 1.6.8.1 2000/08/23 00:19:15 jhb Exp $ */
   2
   3 #ifndef PRIVATE_H
   4
   5 #define PRIVATE_H
   6 /*
   7 ** This file is in the public domain, so clarified as of
   8 ** June 5, 1996 by Arthur David Olson (arthur_david_olson@nih.gov).
   9 */
  10
  11 /* Stuff moved from Makefile.inc to reduce clutter */
  12 #ifndef TM_GMTOFF
  13 #define TM_GMTOFF       tm_gmtoff
  14 #define TM_ZONE         tm_zone
  15 #define STD_INSPIRED    1
  16 #define PCTS            1
  17 #define HAVE_LONG_DOUBLE 1
  18 #define HAVE_STRERROR   1
  19 #define HAVE_UNISTD_H   1
  20 #define LOCALE_HOME     _PATH_LOCALE
  21 #define TZDIR           "/usr/share/zoneinfo"
  22 #endif /* ndef TM_GMTOFF */
  23
  24 /*
  25 ** This header is for use ONLY with the time conversion code.
  26 ** There is no guarantee that it will remain unchanged,
  27 ** or that it will remain at all.
  28 ** Do NOT copy it to any system include directory.
  29 ** Thank you!
  30 */
  31
  32 /*
  33 ** ID
  34 */
  35
  36 #ifndef lint
  37 #ifndef NOID
  38 /*
  39 static char     privatehid[] = "@(#)private.h   7.43";
  40 */
  41 #endif /* !defined NOID */
  42 #endif /* !defined lint */
  43
  44 /*
  45 ** Defaults for preprocessor symbols.
  46 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  47 */
  48
  49 #ifndef HAVE_ADJTIME
  50 #define HAVE_ADJTIME            1
  51 #endif /* !defined HAVE_ADJTIME */
  52
  53 #ifndef HAVE_GETTEXT
  54 #define HAVE_GETTEXT            0
  55 #endif /* !defined HAVE_GETTEXT */
  56
  57 #ifndef HAVE_SETTIMEOFDAY
  58 #define HAVE_SETTIMEOFDAY       3
  59 #endif /* !defined HAVE_SETTIMEOFDAY */
  60
  61 #ifndef HAVE_STRERROR
  62 #define HAVE_STRERROR           0
  63 #endif /* !defined HAVE_STRERROR */
  64
  65 #ifndef HAVE_UNISTD_H
  66 #define HAVE_UNISTD_H           1
  67 #endif /* !defined HAVE_UNISTD_H */
  68
  69 #ifndef HAVE_UTMPX_H
  70 #define HAVE_UTMPX_H            0
  71 #endif /* !defined HAVE_UTMPX_H */
  72
  73 #ifndef LOCALE_HOME
  74 #define LOCALE_HOME             "/usr/lib/locale"
  75 #endif /* !defined LOCALE_HOME */
  76
  77 /*
  78 ** Nested includes
  79 */
  80
  81 #include "sys/types.h"  /* for time_t */
  82 #include "stdio.h"
  83 #include "errno.h"
  84 #include "string.h"
  85 #include "limits.h"     /* for CHAR_BIT */
  86 #include "time.h"
  87 #include "stdlib.h"
  88
  89 #if HAVE_GETTEXT - 0
  90 #include "libintl.h"
  91 #endif /* HAVE_GETTEXT - 0 */
  92
  93 #if HAVE_UNISTD_H - 0
  94 #include "unistd.h"     /* for F_OK and R_OK */
  95 #endif /* HAVE_UNISTD_H - 0 */
  96
  97 #if !(HAVE_UNISTD_H - 0)
  98 #ifndef F_OK
  99 #define F_OK    0
 100 #endif /* !defined F_OK */
 101 #ifndef R_OK
 102 #define R_OK    4
 103 #endif /* !defined R_OK */
 104 #endif /* !(HAVE_UNISTD_H - 0) */
 105
 106 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
 107 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
 108
 109 /*
 110 ** Workarounds for compilers/systems.
 111 */
 112
 113 #ifndef P
 114 #ifdef __STDC__
 115 #define P(x)    x
 116 #endif /* defined __STDC__ */
 117 #ifndef __STDC__
 118 #define P(x)    ()
 119 #endif /* !defined __STDC__ */
 120 #endif /* !defined P */
 121
 122 /*
 123 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 124 */
 125
 126 #ifndef FILENAME_MAX
 127
 128 #ifndef MAXPATHLEN
 129 #ifdef unix
 130 #include "sys/param.h"
 131 #endif /* defined unix */
 132 #endif /* !defined MAXPATHLEN */
 133
 134 #ifdef MAXPATHLEN
 135 #define FILENAME_MAX    MAXPATHLEN
 136 #endif /* defined MAXPATHLEN */
 137 #ifndef MAXPATHLEN
 138 #define FILENAME_MAX    1024            /* Pure guesswork */
 139 #endif /* !defined MAXPATHLEN */
 140
 141 #endif /* !defined FILENAME_MAX */
 142
 143 /*
 144 ** Finally, some convenience items.
 145 */
 146
 147 #ifndef TRUE
 148 #define TRUE    1
 149 #endif /* !defined TRUE */
 150
 151 #ifndef FALSE
 152 #define FALSE   0
 153 #endif /* !defined FALSE */
 154
 155 #ifndef TYPE_BIT
 156 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 157 #endif /* !defined TYPE_BIT */
 158
 159 #ifndef TYPE_SIGNED
 160 #define TYPE_SIGNED(type) (((type) -1) < 0)
 161 #endif /* !defined TYPE_SIGNED */
 162
 163 #ifndef INT_STRLEN_MAXIMUM
 164 /*
 165 ** 302 / 1000 is log10(2.0) rounded up.
 166 ** Subtract one for the sign bit if the type is signed;
 167 ** add one for integer division truncation;
 168 ** add one more for a minus sign if the type is signed.
 169 */
 170 #define INT_STRLEN_MAXIMUM(type) \
 171     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
 172 #endif /* !defined INT_STRLEN_MAXIMUM */
 173
 174 /*
 175 ** INITIALIZE(x)
 176 */
 177
 178 #ifndef GNUC_or_lint
 179 #ifdef lint
 180 #define GNUC_or_lint
 181 #endif /* defined lint */
 182 #ifndef lint
 183 #ifdef __GNUC__
 184 #define GNUC_or_lint
 185 #endif /* defined __GNUC__ */
 186 #endif /* !defined lint */
 187 #endif /* !defined GNUC_or_lint */
 188
 189 #ifndef INITIALIZE
 190 #ifdef GNUC_or_lint
 191 #define INITIALIZE(x)   ((x) = 0)
 192 #endif /* defined GNUC_or_lint */
 193 #ifndef GNUC_or_lint
 194 #define INITIALIZE(x)
 195 #endif /* !defined GNUC_or_lint */
 196 #endif /* !defined INITIALIZE */
 197
 198 /*
 199 ** For the benefit of GNU folk...
 200 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 201 ** The default is to use gettext if available, and use MSGID otherwise.
 202 */
 203
 204 #ifndef _
 205 #if HAVE_GETTEXT - 0
 206 #define _(msgid) gettext(msgid)
 207 #else /* !(HAVE_GETTEXT - 0) */
 208 #define _(msgid) msgid
 209 #endif /* !(HAVE_GETTEXT - 0) */
 210 #endif /* !defined _ */
 211
 212 #ifndef TZ_DOMAIN
 213 #define TZ_DOMAIN "tz"
 214 #endif /* !defined TZ_DOMAIN */
 215
 216 /*
 217 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
 218 */
 219
 220 #endif /* !defined PRIVATE_H */