mktime.c File Reference

#include <config.h>
#include <time.h>
#include <limits.h>
#include <string.h>
#include "mktime-internal.h"

Include dependency graph for mktime.c:

Defines
#define	WRAPV   0
#define	verify(name, assertion)   struct name { char a[(assertion) ? 1 : -1]; }
#define	SHR(a, b)
#define	TYPE_IS_INTEGER(t)   ((t) 1.5 == 1)
#define	TYPE_TWOS_COMPLEMENT(t)   ((t) ~ (t) 0 == (t) -1)
#define	TYPE_SIGNED(t)   (! ((t) 0 < (t) -1))
#define	TYPE_MINIMUM(t)
#define	TYPE_MAXIMUM(t)
#define	TIME_T_MIN   TYPE_MINIMUM (time_t)
#define	TIME_T_MAX   TYPE_MAXIMUM (time_t)
#define	TIME_T_MIDPOINT   (SHR (TIME_T_MIN + TIME_T_MAX, 1) + 1)
#define	EPOCH_YEAR   1970
#define	TM_YEAR_BASE   1900
#define	__localtime_r   localtime_r
#define	__mktime_internal   mktime_internal
Typedefs
typedef long int	long_int
Functions
	verify (long_int_is_wide_enough, INT_MAX==INT_MAX *(long_int) 2/2)
	verify (time_t_is_integer, TYPE_IS_INTEGER(time_t))
	verify (twos_complement_arithmetic,(TYPE_TWOS_COMPLEMENT(int)&&TYPE_TWOS_COMPLEMENT(long_int)&&TYPE_TWOS_COMPLEMENT(time_t)))
	verify (base_year_is_a_multiple_of_100, TM_YEAR_BASE%100==0)
time_t	__mktime_internal (struct tm *tp, struct tm *(*convert)(const time_t *, struct tm *), time_t *offset)
time_t	mktime (struct tm *tp)

---

Define Documentation

#define __localtime_r   localtime_r

#define __mktime_internal   mktime_internal

#define EPOCH_YEAR   1970

#define SHR	(		a,
			b
	)

Value:

((-1 >> 1 == -1                                               \
    && (long_int) -1 >> 1 == -1                                 \
    && ((time_t) -1 >> 1 == -1 || ! TYPE_SIGNED (time_t)))      \
   ? (a) >> (b)                                                 \
   : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))

#define TIME_T_MAX   TYPE_MAXIMUM (time_t)

#define TIME_T_MIDPOINT   (SHR (TIME_T_MIN + TIME_T_MAX, 1) + 1)

#define TIME_T_MIN   TYPE_MINIMUM (time_t)

#define TM_YEAR_BASE   1900

#define TYPE_IS_INTEGER

(

t

)

((t) 1.5 == 1)

#define TYPE_MAXIMUM

(

t

)

Value:

((t) (! TYPE_SIGNED (t) \
        ? (t) -1 \
        : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))

#define TYPE_MINIMUM

(

t

)

Value:

((t) (! TYPE_SIGNED (t) \
        ? (t) 0 \
        : ~ TYPE_MAXIMUM (t)))

#define TYPE_SIGNED

(

t

)

(! ((t) 0 < (t) -1))

#define TYPE_TWOS_COMPLEMENT

(

t

)

((t) ~ (t) 0 == (t) -1)

#define verify	(		name,
			assertion
	)			struct name { char a[(assertion) ? 1 : -1]; }

#define WRAPV   0

---

Typedef Documentation

typedef long int long_int

---

Function Documentation

time_t __mktime_internal	(	struct tm *	tp,
		struct tm *(*)(const time_t *, struct tm *)	convert,
		time_t *	offset
	)

time_t mktime

(

struct tm *

tp

)

verify	(	twos_complement_arithmetic	,
		(TYPE_TWOS_COMPLEMENT(int)&&TYPE_TWOS_COMPLEMENT(long_int)&&TYPE_TWOS_COMPLEMENT(time_t))
	)

verify	(	base_year_is_a_multiple_of_100	,
		TM_YEAR_BASE%	100 = =0
	)

verify	(	long_int_is_wide_enough	,
		INT_MAX	= =INT_MAX *(long_int) 2/2
	)

verify	(	time_t_is_integer	,
		TYPE_IS_INTEGER(time_t)
	)