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Tim Peters2a799bf2002-12-16 20:18:38 +00001/* datetime.h
2 */
3
4#ifndef DATETIME_H
5#define DATETIME_H
6
7/* Fields are packed into successive bytes, each viewed as unsigned and
8 * big-endian, unless otherwise noted:
9 *
10 * byte offset
11 * 0 year 2 bytes, 1-9999
12 * 2 month 1 byte, 1-12
13 * 3 day 1 byte, 1-31
14 * 4 hour 1 byte, 0-23
15 * 5 minute 1 byte, 0-59
16 * 6 second 1 byte, 0-59
17 * 7 usecond 3 bytes, 0-999999
18 * 10
19 */
20
21/* # of bytes for year, month, and day. */
22#define _PyDateTime_DATE_DATASIZE 4
23
24/* # of bytes for hour, minute, second, and usecond. */
25#define _PyDateTime_TIME_DATASIZE 6
26
27/* # of bytes for year, month, day, hour, minute, second, and usecond. */
28#define _PyDateTime_DATETIME_DATASIZE 10
29
30typedef struct
31{
32 PyObject_HEAD
33 long hashcode;
34 unsigned char data[_PyDateTime_DATE_DATASIZE];
35} PyDateTime_Date;
36
37typedef struct
38{
39 PyObject_HEAD
40 long hashcode;
41 unsigned char data[_PyDateTime_DATETIME_DATASIZE];
42} PyDateTime_DateTime;
43
44typedef struct
45{
46 PyObject_HEAD
47 long hashcode;
48 unsigned char data[_PyDateTime_DATETIME_DATASIZE];
49 PyObject *tzinfo;
50} PyDateTime_DateTimeTZ;
51
52typedef struct
53{
54 PyObject_HEAD
55 long hashcode;
56 unsigned char data[_PyDateTime_TIME_DATASIZE];
57} PyDateTime_Time;
58
59typedef struct
60{
61 PyObject_HEAD
62 long hashcode;
63 unsigned char data[_PyDateTime_TIME_DATASIZE];
64 PyObject *tzinfo;
65} PyDateTime_TimeTZ;
66
67typedef struct
68{
69 PyObject_HEAD
70 long hashcode; /* -1 when unknown */
71 int days; /* -MAX_DELTA_DAYS <= days <= MAX_DELTA_DAYS */
72 int seconds; /* 0 <= seconds < 24*3600 is invariant */
73 int microseconds; /* 0 <= microseconds < 1000000 is invariant */
74} PyDateTime_Delta;
75
76typedef struct
77{
78 PyObject_HEAD /* a pure abstract base clase */
79} PyDateTime_TZInfo;
80
81/* Apply for date, datetime, and datetimetz instances. */
82#define PyDateTime_GET_YEAR(o) ((((PyDateTime_Date*)o)->data[0] << 8) | \
83 ((PyDateTime_Date*)o)->data[1])
84#define PyDateTime_GET_MONTH(o) (((PyDateTime_Date*)o)->data[2])
85#define PyDateTime_GET_DAY(o) (((PyDateTime_Date*)o)->data[3])
86
87#define PyDateTime_DATE_GET_HOUR(o) (((PyDateTime_DateTime*)o)->data[4])
88#define PyDateTime_DATE_GET_MINUTE(o) (((PyDateTime_DateTime*)o)->data[5])
89#define PyDateTime_DATE_GET_SECOND(o) (((PyDateTime_DateTime*)o)->data[6])
90#define PyDateTime_DATE_GET_MICROSECOND(o) \
91 ((((PyDateTime_DateTime*)o)->data[7] << 16) | \
92 (((PyDateTime_DateTime*)o)->data[8] << 8) | \
93 ((PyDateTime_DateTime*)o)->data[9])
94
95/* Apply for time and timetz instances. */
96#define PyDateTime_TIME_GET_HOUR(o) (((PyDateTime_Time*)o)->data[0])
97#define PyDateTime_TIME_GET_MINUTE(o) (((PyDateTime_Time*)o)->data[1])
98#define PyDateTime_TIME_GET_SECOND(o) (((PyDateTime_Time*)o)->data[2])
99#define PyDateTime_TIME_GET_MICROSECOND(o) \
100 ((((PyDateTime_Time*)o)->data[3] << 16) | \
101 (((PyDateTime_Time*)o)->data[4] << 8) | \
102 ((PyDateTime_Time*)o)->data[5])
103
104#define PyDate_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateType)
105#define PyDate_CheckExact(op) ((op)->ob_type == &PyDateTime_DateType)
106
107#define PyDateTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateTimeType)
108#define PyDateTime_CheckExact(op) ((op)->ob_type == &PyDateTime_DateTimeType)
109
110#define PyDateTimeTZ_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateTimeTZType)
111#define PyDateTimeTZ_CheckExact(op) ((op)->ob_type == &PyDateTime_DateTimeTZType)
112
113#define PyTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeType)
114#define PyTime_CheckExact(op) ((op)->ob_type == &PyDateTime_TimeType)
115
116#define PyTimeTZ_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeTZType)
117#define PyTimeTZ_CheckExact(op) ((op)->ob_type == &PyDateTime_TimeTZType)
118
119#define PyDelta_Check(op) PyObject_TypeCheck(op, &PyDateTime_DeltaType)
120#define PyDelta_CheckExact(op) ((op)->ob_type == &PyDateTime_DeltaType)
121
122#define PyTZInfo_Check(op) PyObject_TypeCheck(op, &PyDateTime_TZInfoType)
123#define PyTZInfo_CheckExact(op) ((op)->ob_type == &PyDateTime_TZInfoType)
124
125#endif