newlib/winsup/mingw/include/time.h
Chris Sutcliffe 3d1b423011 2011-05-23 Chris Sutcliffe <ir0nh34d@users.sourceforge.net>
* include/time.h (daytime, timezone, tzname): Rework guards to expose when
        compiles with __STRICT_ANSI__.

        Thanks to Felipe Contreras for the report.
2011-05-23 20:04:12 +00:00

281 lines
9.3 KiB
C

/*
* time.h
* This file has no copyright assigned and is placed in the Public Domain.
* This file is a part of the mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within the package.
*
* Date and time functions and types.
*
*/
#ifndef _TIME_H_
#define _TIME_H_
/* All the headers include this file. */
#include <_mingw.h>
#define __need_wchar_t
#define __need_size_t
#define __need_NULL
#ifndef RC_INVOKED
#include <stddef.h>
#endif /* Not RC_INVOKED */
/*
* Number of clock ticks per second. A clock tick is the unit by which
* processor time is measured and is returned by 'clock'.
*/
#define CLOCKS_PER_SEC ((clock_t)1000)
#define CLK_TCK CLOCKS_PER_SEC
#ifndef RC_INVOKED
/*
* A type for storing the current time and date. This is the number of
* seconds since midnight Jan 1, 1970.
* NOTE: This is also defined in non-ISO sys/types.h.
*/
#ifndef _TIME32_T_DEFINED
typedef __int32 __time32_t;
#define _TIME32_T_DEFINED
#endif
#ifndef __STRICT_ANSI__
/* A 64-bit time_t to get to Y3K */
#ifndef _TIME64_T_DEFINED
typedef __int64 __time64_t;
#define _TIME64_T_DEFINED
#endif
#endif
#ifndef _TIME_T_DEFINED
/* FIXME __STRICT_ANSI__ ! */
#if __MSVCRT_VERSION__ >= 0x0800
#ifndef _USE_32BIT_TIME_T
typedef __time64_t time_t;
#else
typedef __time32_t time_t;
#endif /* !_USE_32BIT_TIME_T */
#else
typedef __time32_t time_t;
#endif /* __MSVCRT_VERSION__ >= 0x0800 */
#define _TIME_T_DEFINED
#endif
/*
* A type for measuring processor time (in clock ticks).
*/
#ifndef _CLOCK_T_DEFINED
typedef long clock_t;
#define _CLOCK_T_DEFINED
#endif
#ifndef _TM_DEFINED
/*
* A structure for storing all kinds of useful information about the
* current (or another) time.
*/
struct tm
{
int tm_sec; /* Seconds: 0-59 (K&R says 0-61?) */
int tm_min; /* Minutes: 0-59 */
int tm_hour; /* Hours since midnight: 0-23 */
int tm_mday; /* Day of the month: 1-31 */
int tm_mon; /* Months *since* january: 0-11 */
int tm_year; /* Years since 1900 */
int tm_wday; /* Days since Sunday (0-6) */
int tm_yday; /* Days since Jan. 1: 0-365 */
int tm_isdst; /* +1 Daylight Savings Time, 0 No DST,
* -1 don't know */
};
#define _TM_DEFINED
#endif
#ifdef __cplusplus
extern "C" {
#endif
_CRTIMP clock_t __cdecl __MINGW_NOTHROW clock (void);
#if __MSVCRT_VERSION__ < 0x0800
_CRTIMP time_t __cdecl __MINGW_NOTHROW time (time_t*);
_CRTIMP double __cdecl __MINGW_NOTHROW difftime (time_t, time_t);
_CRTIMP time_t __cdecl __MINGW_NOTHROW mktime (struct tm*);
#endif
/*
* These functions write to and return pointers to static buffers that may
* be overwritten by other function calls. Yikes!
*
* NOTE: localtime, and perhaps the others of the four functions grouped
* below may return NULL if their argument is not 'acceptable'. Also note
* that calling asctime with a NULL pointer will produce an Invalid Page
* Fault and crap out your program. Guess how I know. Hint: stat called on
* a directory gives 'invalid' times in st_atime etc...
*/
_CRTIMP char* __cdecl __MINGW_NOTHROW asctime (const struct tm*);
#if __MSVCRT_VERSION__ < 0x0800
_CRTIMP char* __cdecl __MINGW_NOTHROW ctime (const time_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW gmtime (const time_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW localtime (const time_t*);
#endif
_CRTIMP size_t __cdecl __MINGW_NOTHROW strftime (char*, size_t, const char*, const struct tm*);
#ifndef __STRICT_ANSI__
extern _CRTIMP void __cdecl __MINGW_NOTHROW _tzset (void);
#ifndef _NO_OLDNAMES
extern _CRTIMP void __cdecl __MINGW_NOTHROW tzset (void);
#endif
_CRTIMP char* __cdecl __MINGW_NOTHROW _strdate(char*);
_CRTIMP char* __cdecl __MINGW_NOTHROW _strtime(char*);
/* These require newer versions of msvcrt.dll (6.10 or higher). */
#if __MSVCRT_VERSION__ >= 0x0601
_CRTIMP __time64_t __cdecl __MINGW_NOTHROW _time64( __time64_t*);
_CRTIMP __time64_t __cdecl __MINGW_NOTHROW _mktime64 (struct tm*);
_CRTIMP char* __cdecl __MINGW_NOTHROW _ctime64 (const __time64_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW _gmtime64 (const __time64_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW _localtime64 (const __time64_t*);
#endif /* __MSVCRT_VERSION__ >= 0x0601 */
/* These require newer versions of msvcrt.dll (8.00 or higher). */
#if __MSVCRT_VERSION__ >= 0x0800
_CRTIMP __time32_t __cdecl __MINGW_NOTHROW _time32 (__time32_t*);
_CRTIMP double __cdecl __MINGW_NOTHROW _difftime32 (__time32_t, __time32_t);
_CRTIMP double __cdecl __MINGW_NOTHROW _difftime64 (__time64_t, __time64_t);
_CRTIMP __time32_t __cdecl __MINGW_NOTHROW _mktime32 (struct tm*);
_CRTIMP __time32_t __cdecl __MINGW_NOTHROW _mkgmtime32 (struct tm*);
_CRTIMP __time64_t __cdecl __MINGW_NOTHROW _mkgmtime64 (struct tm*);
_CRTIMP char* __cdecl __MINGW_NOTHROW _ctime32 (const __time32_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW _gmtime32 (const __time32_t*);
_CRTIMP struct tm* __cdecl __MINGW_NOTHROW _localtime32 (const __time32_t*);
#ifndef _USE_32BIT_TIME_T
_CRTALIAS time_t __cdecl __MINGW_NOTHROW time (time_t* _v) { return(_time64 (_v)); }
_CRTALIAS double __cdecl __MINGW_NOTHROW difftime (time_t _v1, time_t _v2) { return(_difftime64 (_v1,_v2)); }
_CRTALIAS time_t __cdecl __MINGW_NOTHROW mktime (struct tm* _v) { return(_mktime64 (_v)); }
_CRTALIAS time_t __cdecl __MINGW_NOTHROW _mkgmtime (struct tm* _v) { return(_mkgmtime64 (_v)); }
_CRTALIAS char* __cdecl __MINGW_NOTHROW ctime (const time_t* _v) { return(_ctime64 (_v)); }
_CRTALIAS struct tm* __cdecl __MINGW_NOTHROW gmtime (const time_t* _v) { return(_gmtime64 (_v)); }
_CRTALIAS struct tm* __cdecl __MINGW_NOTHROW localtime (const time_t* _v) { return(_localtime64 (_v)); }
#else
_CRTALIAS time_t __cdecl __MINGW_NOTHROW time (time_t* _v) { return(_time32 (_v)); }
_CRTALIAS double __cdecl __MINGW_NOTHROW difftime (time_t _v1, time_t _v2) { return(_difftime32 (_v1,_v2)); }
_CRTALIAS time_t __cdecl __MINGW_NOTHROW mktime (struct tm* _v) { return(_mktime32 (_v)); }
_CRTALIAS time_t __cdecl __MINGW_NOTHROW _mkgmtime (struct tm* _v) { return(_mkgmtime32 (_v)); }
_CRTALIAS char* __cdecl __MINGW_NOTHROW ctime (const time_t* _v) { return(_ctime32 (_v)); }
_CRTALIAS struct tm* __cdecl __MINGW_NOTHROW gmtime (const time_t* _v) { return(_gmtime32 (_v)); }
_CRTALIAS struct tm* __cdecl __MINGW_NOTHROW localtime (const time_t* _v) { return(_localtime32 (_v)); }
#endif /* !_USE_32BIT_TIME_T */
#endif /* __MSVCRT_VERSION__ >= 0x0800 */
/*
* _daylight: non zero if daylight savings time is used.
* _timezone: difference in seconds between GMT and local time.
* _tzname: standard/daylight savings time zone names (an array with two
* elements).
*/
#ifdef __MSVCRT__
/* These are for compatibility with pre-VC 5.0 suppied MSVCRT. */
extern _CRTIMP int* __cdecl __MINGW_NOTHROW __p__daylight (void);
extern _CRTIMP long* __cdecl __MINGW_NOTHROW __p__timezone (void);
extern _CRTIMP char** __cdecl __MINGW_NOTHROW __p__tzname (void);
__MINGW_IMPORT int _daylight;
__MINGW_IMPORT long _timezone;
__MINGW_IMPORT char *_tzname[2];
#else /* not __MSVCRT (ie. crtdll) */
#ifndef __DECLSPEC_SUPPORTED
extern int* _imp___daylight_dll;
extern long* _imp___timezone_dll;
extern char** _imp___tzname;
#define _daylight (*_imp___daylight_dll)
#define _timezone (*_imp___timezone_dll)
#define _tzname (*_imp___tzname)
#else /* __DECLSPEC_SUPPORTED */
__MINGW_IMPORT int _daylight_dll;
__MINGW_IMPORT long _timezone_dll;
__MINGW_IMPORT char* _tzname[2];
#define _daylight _daylight_dll
#define _timezone _timezone_dll
#endif /* __DECLSPEC_SUPPORTED */
#endif /* not __MSVCRT__ */
#endif /* Not __STRICT_ANSI__ */
#ifndef _NO_OLDNAMES
#ifdef __MSVCRT__
/* These go in the oldnames import library for MSVCRT. */
__MINGW_IMPORT int daylight;
__MINGW_IMPORT long timezone;
__MINGW_IMPORT char *tzname[2];
#else /* not __MSVCRT__ */
/* CRTDLL is royally messed up when it comes to these macros.
TODO: import and alias these via oldnames import library instead
of macros. */
#define daylight _daylight
/* NOTE: timezone not defined as macro because it would conflict with
struct timezone in sys/time.h.
Also, tzname used to a be macro, but now it's in moldname. */
__MINGW_IMPORT char *tzname[2];
#endif /* not __MSVCRT__ */
#endif /* Not _NO_OLDNAMES */
#ifndef _WTIME_DEFINED
/* wide function prototypes, also declared in wchar.h */
#ifndef __STRICT_ANSI__
#ifdef __MSVCRT__
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wasctime(const struct tm*);
#if __MSVCRT_VERSION__ < 0x0800
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wctime(const time_t*);
#endif
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wstrdate(wchar_t*);
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wstrtime(wchar_t*);
#if __MSVCRT_VERSION__ >= 0x0601
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wctime64 (const __time64_t*);
#endif
#if __MSVCRT_VERSION__ >= 0x0800
_CRTIMP wchar_t* __cdecl __MINGW_NOTHROW _wctime32 (const __time32_t*);
#ifndef _USE_32BIT_TIME_T
_CRTALIAS wchar_t* __cdecl __MINGW_NOTHROW _wctime (const time_t* _v) { return(_wctime64 (_v)); }
#else
_CRTALIAS wchar_t* __cdecl __MINGW_NOTHROW _wctime (const time_t* _v) { return(_wctime32 (_v)); }
#endif
#endif /* __MSVCRT_VERSION__ >= 0x0800 */
#endif /* __MSVCRT__ */
#endif /* __STRICT_ANSI__ */
_CRTIMP size_t __cdecl __MINGW_NOTHROW wcsftime (wchar_t*, size_t, const wchar_t*, const struct tm*);
#define _WTIME_DEFINED
#endif /* _WTIME_DEFINED */
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* Not _TIME_H_ */