1 /* 2 * @(#)private.h 8.6 3 * $FreeBSD: src/lib/libc/stdtime/private.h,v 1.6.8.1 2000/08/23 00:19:15 jhb Exp $ 4 * $DragonFly: src/lib/libc/stdtime/private.h,v 1.3 2008/10/19 20:15:58 swildner Exp $ 5 */ 6 7 #ifndef PRIVATE_H 8 9 #define PRIVATE_H 10 /* 11 ** This file is in the public domain, so clarified as of 12 ** 1996-06-05 by Arthur David Olson. 13 */ 14 15 /* Stuff moved from Makefile.inc to reduce clutter */ 16 #ifndef TM_GMTOFF 17 #define TM_GMTOFF tm_gmtoff 18 #define TM_ZONE tm_zone 19 #define TZDIR "/usr/share/zoneinfo" 20 #endif /* ndef TM_GMTOFF */ 21 22 /* 23 ** This header is for use ONLY with the time conversion code. 24 ** There is no guarantee that it will remain unchanged, 25 ** or that it will remain at all. 26 ** Do NOT copy it to any system include directory. 27 ** Thank you! 28 */ 29 30 #define GRANDPARENTED "Local time zone must be set--see zic manual page" 31 32 /* 33 ** Nested includes 34 */ 35 36 #include "sys/types.h" /* for time_t */ 37 #include "stdio.h" 38 #include "errno.h" 39 #include "string.h" 40 #include "limits.h" /* for CHAR_BIT et al. */ 41 #include "time.h" 42 #include "stdlib.h" 43 44 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 45 46 #include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 47 48 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 49 #define is_digit(c) ((unsigned)(c) - '0' <= 9) 50 51 #include "stdint.h" 52 53 /* 54 ** Private function declarations. 55 */ 56 57 char * icalloc(int nelem, int elsize); 58 char * icatalloc(char * old, const char * new); 59 char * icpyalloc(const char * string); 60 char * imalloc(int n); 61 void * irealloc(void * pointer, int size); 62 void icfree(char * pointer); 63 void ifree(char * pointer); 64 const char * scheck(const char * string, const char * format); 65 66 /* 67 ** Finally, some convenience items. 68 */ 69 70 #ifndef TRUE 71 #define TRUE 1 72 #endif /* !defined TRUE */ 73 74 #ifndef FALSE 75 #define FALSE 0 76 #endif /* !defined FALSE */ 77 78 #ifndef TYPE_BIT 79 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 80 #endif /* !defined TYPE_BIT */ 81 82 #ifndef TYPE_SIGNED 83 #define TYPE_SIGNED(type) (((type) -1) < 0) 84 #endif /* !defined TYPE_SIGNED */ 85 86 /* 87 ** Since the definition of TYPE_INTEGRAL contains floating point numbers, 88 ** it cannot be used in preprocessor directives. 89 */ 90 91 #ifndef TYPE_INTEGRAL 92 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5) 93 #endif /* !defined TYPE_INTEGRAL */ 94 95 #ifndef INT_STRLEN_MAXIMUM 96 /* 97 ** 302 / 1000 is log10(2.0) rounded up. 98 ** Subtract one for the sign bit if the type is signed; 99 ** add one for integer division truncation; 100 ** add one more for a minus sign if the type is signed. 101 */ 102 #define INT_STRLEN_MAXIMUM(type) \ 103 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 104 1 + TYPE_SIGNED(type)) 105 #endif /* !defined INT_STRLEN_MAXIMUM */ 106 107 /* 108 ** INITIALIZE(x) 109 */ 110 111 #ifndef GNUC_or_lint 112 #ifdef lint 113 #define GNUC_or_lint 114 #endif /* defined lint */ 115 #ifndef lint 116 #ifdef __GNUC__ 117 #define GNUC_or_lint 118 #endif /* defined __GNUC__ */ 119 #endif /* !defined lint */ 120 #endif /* !defined GNUC_or_lint */ 121 122 #ifndef INITIALIZE 123 #ifdef GNUC_or_lint 124 #define INITIALIZE(x) ((x) = 0) 125 #endif /* defined GNUC_or_lint */ 126 #ifndef GNUC_or_lint 127 #define INITIALIZE(x) 128 #endif /* !defined GNUC_or_lint */ 129 #endif /* !defined INITIALIZE */ 130 131 /* 132 ** For the benefit of GNU folk... 133 ** `_(MSGID)' uses the current locale's message library string for MSGID. 134 ** The default is to use gettext if available, and use MSGID otherwise. 135 */ 136 137 #ifndef _ 138 #define _(msgid) msgid 139 #endif /* !defined _ */ 140 141 #ifndef TZ_DOMAIN 142 #define TZ_DOMAIN "tz" 143 #endif /* !defined TZ_DOMAIN */ 144 145 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 146 147 /* 148 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 149 */ 150 151 #define AVGSECSPERYEAR 31556952L 152 #define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 153 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 154 155 /* 156 ** UNIX was a registered trademark of The Open Group in 2003. 157 */ 158 159 #endif /* !defined PRIVATE_H */ 160