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1/*
2 *Copyright (c) 1986-2000, Hiram Clawson
3 *All rights reserved.
4 *
5 *Redistribution and use in source and binary forms, with or
6 *without modification, are permitted provided that the following
7 *conditions are met:
8 *
9 * Redistributions of source code must retain the above
10 * copyright notice, this list of conditions and the
11 * following disclaimer.
12 *
13 * Redistributions in binary form must reproduce the
14 * above copyright notice, this list of conditions and
15 * the following disclaimer in the documentation and/or
16 * other materials provided with the distribution.
17 *
18 * Neither name of The Museum of Hiram nor the names of
19 * its contributors may be used to endorse or promote products
20 * derived from this software without specific prior
21 * written permission.
22 *
23 *THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
24 *CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
25 *INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 *MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 *IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28 *INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 *(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 *OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 *HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
32 *STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
33 *IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
34 *THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37/**
38 *@file astime.h
39 * @brief contains definitions of structures used for time calculations.
40 */
41
42 #ifndef_astime_h_
43#define _astime_h_
44
45typedef struct ut_instant {
46 doublej_date; /**< julian decimal date, 0 = 01 Jan 4713 BC 12 HR UT */
47 long year; /**< year, valid range [-4,713, +2,147,483,647] */
48 int month; /**< [1-12]*/
49 int day; /**< [1-31]*/
50 int i_hour; /**< [0-23]*/
51 int i_minute; /**< [0-59]*/
52 int i_second; /**< [0-59]*/
53 double d_hour; /**< [0.0-23.9999] includes minute and second */
54 double d_minute; /**< [0.0-59.9999] includes second*/
55 double d_second; /**< [0.0-59.9999]*/
56 int weekday; /**< [0-6]*/
57 int day_of_year; /**< [1-366]*/
58} UTinstant, * UTinstantPtr;
59
60 /* Functions in caldate.c*/
61
62 long caldat( UTinstantPtr );/** converts julian date to year,mo,da */
63 double juldat( UTinstantPtr );/** returns julian day from year,mo,da */
64
65 #endif /* _astime_h_*/