You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
10 years ago
|
/*!
|
||
|
|
@file timegm.h
|
||
|
|
@brief Declaration of timegm(). The implementation is in localtime.c
|
||
|
|
*/
|
||
|
|
#ifndef TIMEGM_H_
|
||
|
|
#define TIMEGM_H_
|
||
|
|
|
||
|
|
#include <time.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
The following comments are copied from the Makefile of the tz distribution,
|
||
|
|
available at ftp://elsie.nci.nih.gov/pub/:
|
||
|
|
|
||
|
|
NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
|
||
|
|
out by the National Institute of Standards and Technology
|
||
|
|
which claims to test C and Posix conformance. If you want to pass PCTS, add
|
||
|
|
-DPCTS
|
||
|
|
to the end of the "CFLAGS=" line.
|
||
|
|
|
||
|
|
If your system has a "zone abbreviation" field in its "struct tm"s
|
||
|
|
(or if you decide to add such a field in your system's "time.h" file),
|
||
|
|
add the name to a define such as
|
||
|
|
-DTM_ZONE=tm_zone
|
||
|
|
or
|
||
|
|
-DTM_ZONE=_tm_zone
|
||
|
|
to the end of the "CFLAGS=" line.
|
||
|
|
|
||
|
|
If you want functions that were inspired by early versions of X3J11's work,
|
||
|
|
add
|
||
|
|
-DSTD_INSPIRED
|
||
|
|
to the end of the "CFLAGS=" line.
|
||
|
|
|
||
|
|
If you want to allocate state structures in localtime, add
|
||
|
|
-DALL_STATE
|
||
|
|
to the end of the "CFLAGS=" line. Storage is obtained by calling malloc.
|
||
|
|
|
||
|
|
If you want Source Code Control System ID's left out of object modules, add
|
||
|
|
-DNOID
|
||
|
|
|
||
|
|
Add the following to the end of the "CFLAGS=" line as needed.
|
||
|
|
-DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
|
||
|
|
DST transitions if the time zone files cannot be accessed
|
||
|
|
|
||
|
|
If you want to use System V compatibility code, add
|
||
|
|
-DUSG_COMPAT
|
||
|
|
to the end of the "CFLAGS=" line. This arrange for "timezone" and "daylight"
|
||
|
|
variables to be kept up-to-date by the time conversion functions. Neither
|
||
|
|
"timezone" nor "daylight" is described in X3J11's work.
|
||
|
|
|
||
|
|
If you want an "altzone" variable (a la System V Release 3.1), add
|
||
|
|
-DALTZONE
|
||
|
|
to the end of the "CFLAGS=" line.
|
||
|
|
This variable is not described in X3J11's work.
|
||
|
|
|
||
|
|
If your system has a "GMT offset" field in its "struct tm"s
|
||
|
|
(or if you decide to add such a field in your system's "time.h" file),
|
||
|
|
add the name to a define such as
|
||
|
|
-DTM_GMTOFF=tm_gmtoff
|
||
|
|
or
|
||
|
|
-DTM_GMTOFF=_tm_gmtoff
|
||
|
|
to the end of the "CFLAGS=" line.
|
||
|
|
Neither tm_gmtoff nor _tm_gmtoff is described in X3J11's work;
|
||
|
|
in its work, use of "tm_gmtoff" is described as non-conforming.
|
||
|
|
Both Linux and BSD have done the equivalent of defining TM_GMTOFF in
|
||
|
|
their recent releases.
|
||
|
|
|
||
|
|
If you want a "gtime" function (a la MACH), add
|
||
|
|
-DCMUCS
|
||
|
|
to the end of the "CFLAGS=" line
|
||
|
|
This function is not described in X3J11's work.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define STD_INSPIRED
|
||
|
|
#define NOID
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// The UTC version of mktime
|
||
|
|
/* rmills - timegm is replaced with _mkgmtime on VC 2005 and up */
|
||
|
|
/* - see localtime.c */
|
||
|
|
#if !defined(_MSC_VER) || (_MSC_VER < 1400)
|
||
|
|
time_t timegm(struct tm * const tmp);
|
||
|
|
#else
|
||
|
|
#define timegm _mkgmtime
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // #ifndef TIMEGM_H_
|