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