diff options
Diffstat (limited to 'timezone/private.h')
| -rw-r--r-- | timezone/private.h | 148 |
1 files changed, 139 insertions, 9 deletions
diff --git a/timezone/private.h b/timezone/private.h index 1d1d391f56..4eb0ab6221 100644 --- a/timezone/private.h +++ b/timezone/private.h @@ -34,6 +34,10 @@ #define HAVE_INCOMPATIBLE_CTIME_R 0 #endif /* !defined INCOMPATIBLE_CTIME_R */ +#ifndef HAVE_LINK +#define HAVE_LINK 1 +#endif /* !defined HAVE_LINK */ + #ifndef HAVE_SETTIMEOFDAY #define HAVE_SETTIMEOFDAY 3 #endif /* !defined HAVE_SETTIMEOFDAY */ @@ -124,19 +128,76 @@ #include "stdint.h" #endif /* !HAVE_STDINT_H */ +#ifndef HAVE_INTTYPES_H +# define HAVE_INTTYPES_H HAVE_STDINT_H +#endif +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + #ifndef INT_FAST64_MAX /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ #if defined LLONG_MAX || defined __LONG_LONG_MAX__ typedef long long int_fast64_t; +# ifdef LLONG_MAX +# define INT_FAST64_MIN LLONG_MIN +# define INT_FAST64_MAX LLONG_MAX +# else +# define INT_FAST64_MIN __LONG_LONG_MIN__ +# define INT_FAST64_MAX __LONG_LONG_MAX__ +# endif +# define SCNdFAST64 "lld" #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ #if (LONG_MAX >> 31) < 0xffffffff Please use a compiler that supports a 64-bit integer type (or wider); you may need to compile with "-DHAVE_STDINT_H". #endif /* (LONG_MAX >> 31) < 0xffffffff */ typedef long int_fast64_t; +# define INT_FAST64_MIN LONG_MIN +# define INT_FAST64_MAX LONG_MAX +# define SCNdFAST64 "ld" #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ #endif /* !defined INT_FAST64_MAX */ +#ifndef INT_FAST32_MAX +# if INT_MAX >> 31 == 0 +typedef long int_fast32_t; +# else +typedef int int_fast32_t; +# endif +#endif + +#ifndef INTMAX_MAX +# if defined LLONG_MAX || defined __LONG_LONG_MAX__ +typedef long long intmax_t; +# define strtoimax strtoll +# define PRIdMAX "lld" +# ifdef LLONG_MAX +# define INTMAX_MAX LLONG_MAX +# define INTMAX_MIN LLONG_MIN +# else +# define INTMAX_MAX __LONG_LONG_MAX__ +# define INTMAX_MIN __LONG_LONG_MIN__ +# endif +# else +typedef long intmax_t; +# define strtoimax strtol +# define PRIdMAX "ld" +# define INTMAX_MAX LONG_MAX +# define INTMAX_MIN LONG_MIN +# endif +#endif + +#ifndef UINTMAX_MAX +# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ +typedef unsigned long long uintmax_t; +# define PRIuMAX "llu" +# else +typedef unsigned long uintmax_t; +# define PRIuMAX "lu" +# endif +#endif + #ifndef INT32_MAX #define INT32_MAX 0x7fffffff #endif /* !defined INT32_MAX */ @@ -144,10 +205,26 @@ typedef long int_fast64_t; #define INT32_MIN (-1 - INT32_MAX) #endif /* !defined INT32_MIN */ -#if 2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__) +#if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) +# define ATTRIBUTE_CONST __attribute__ ((const)) # define ATTRIBUTE_PURE __attribute__ ((__pure__)) +# define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) #else +# define ATTRIBUTE_CONST /* empty */ # define ATTRIBUTE_PURE /* empty */ +# define ATTRIBUTE_FORMAT(spec) /* empty */ +#endif + +#if !defined _Noreturn && __STDC_VERSION__ < 201112 +# if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) +# define _Noreturn __attribute__ ((__noreturn__)) +# else +# define _Noreturn +# endif +#endif + +#if __STDC_VERSION__ < 199901 && !defined restrict +# define restrict /* empty */ #endif /* @@ -165,6 +242,58 @@ extern char * asctime_r(struct tm const *, char *); #endif /* +** Compile with -Dtime_tz=T to build the tz package with a private +** time_t type equivalent to T rather than the system-supplied time_t. +** This debugging feature can test unusual design decisions +** (e.g., time_t wider than 'long', or unsigned time_t) even on +** typical platforms. +*/ +#ifdef time_tz +static time_t sys_time(time_t *x) { return time(x); } + +# undef ctime +# define ctime tz_ctime +# undef ctime_r +# define ctime_r tz_ctime_r +# undef difftime +# define difftime tz_difftime +# undef gmtime +# define gmtime tz_gmtime +# undef gmtime_r +# define gmtime_r tz_gmtime_r +# undef localtime +# define localtime tz_localtime +# undef localtime_r +# define localtime_r tz_localtime_r +# undef mktime +# define mktime tz_mktime +# undef time +# define time tz_time +# undef time_t +# define time_t tz_time_t + +typedef time_tz time_t; + +char *ctime(time_t const *); +char *ctime_r(time_t const *, char *); +double difftime(time_t, time_t); +struct tm *gmtime(time_t const *); +struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); +struct tm *localtime(time_t const *); +struct tm *localtime_r(time_t const *restrict, struct tm *restrict); +time_t mktime(struct tm *); + +static time_t +time(time_t *p) +{ + time_t r = sys_time(0); + if (p) + *p = r; + return r; +} +#endif + +/* ** Private function declarations. */ @@ -192,14 +321,15 @@ const char * scheck(const char * string, const char * format); #define TYPE_SIGNED(type) (((type) -1) < 0) #endif /* !defined TYPE_SIGNED */ -/* -** Since the definition of TYPE_INTEGRAL contains floating point numbers, -** it cannot be used in preprocessor directives. -*/ - -#ifndef TYPE_INTEGRAL -#define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5) -#endif /* !defined TYPE_INTEGRAL */ +/* The minimum and maximum finite time values. */ +static time_t const time_t_min = + (TYPE_SIGNED(time_t) + ? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1) + : 0); +static time_t const time_t_max = + (TYPE_SIGNED(time_t) + ? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)) + : -1); #ifndef INT_STRLEN_MAXIMUM /* |