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| CALENDAR(3) | FreeBSD Library Functions Manual | CALENDAR(3) |
̾??
easterg, easterog,
easteroj, gdate,
jdate, ndaysg,
ndaysj, week,
weekday —
?????Ǥ????դ??α黻
?饤?֥???
Calendar Arithmetic Library (libcalendar, -lcalendar)
????
<calendar.h>
struct date *
easterg(int
year, struct date *dt) struct
date *
easterog(int
year, struct date *dt) struct
date *
easteroj(int
year, struct date *dt) struct
date * gdate(int nd,
struct date *dt) struct date *
jdate(int nd,
struct date *dt) int
ndaysg(struct date *dt)
int
ndaysj(struct date *dt)
int week(int
nd, int *year) int
weekday(int nd)
????
???????δؿ??ϡ????? 0 ǯ (???ʤ??? B.C. 1 ǯ) 3 ?? 1 ?? ???????? 100000 ǯ?ޤǤ? ???ϰϤ?ǯ???Υ??????????黻???ޤ???
?ץ????????? -lcalendar
?ȥ???????ɬ?פ??????ޤ???
?ؿ?
easterg(),
easterog()
??????
easteroj()
?ϡ? Easter Sunday (?????פ???????) ?????դ?????
dt
?ǻ??ꤷ????¤?Τ???¸????
???ι?¤?ΤΥݥ????֤??ޤ???
?ؿ? easterg()
?ϡ????쥴?ꥪ?? (1582
ǯ?ʹߤ????衼???åѤΤۤȤ??ɤΥ??ꥹ?ȶ????Ǻ??Ѥ??줿)
?????ꤷ?? ?ؿ? easterog() ??????
easteroj() ?ϡ??????? (1582
ǯ?????????衼???åѶ??????Ӻ????ޤ?³??
???ꥷ???????????????????ʤɤ?????????????????)
?ε?§?˽??äơ? Easter Sunday
?????դ????黻???ޤ??? ???η??̡?
easterog()
?ϥ??쥴?ꥪ??(??????????)???֤???
easteroj()
?ϥ??ꥦ????(????????)???֤??ޤ???
?ؿ?
gdate(),
jdate(),
ndaysg() ?????? ndaysj()
?ϡ????դ??? "ǯ?????"
?Ȥ???????ɽ???ȡ??????黻??Ŭ????
"????" ɽ?????????Ѵ????Ԥ??ޤ??? B.C. 1
ǯ 3 ?? 1 ???? 0 ?Ȥ??ơ?
?ʹߤηв????˽??֤??ֹ椬???????ޤ???
???ʤ??????????ֹ??ϡ? B.C. 1 ǯ 3 ?? 1
?????餽?????ޤǤηв????????ޤ???
?Ѵ??ϡ??????????ֹ????Ф??Ƥ?????ǽ???ޤ???
gdate()
??????
jdate()
?ؿ??ϡ????ֹ? nd
???б????????դ??? dt
?ǻ??ꤷ????¤?Τ???¸???????ι?¤?ΤΥݥ????֤??ޤ???
ndaysg()
??????
ndaysj()
?ؿ??ϡ? dt
?ǻ??ꤷ?????դ??????ֹ????֤??ޤ???
gdate()
?????? ndaysg() ?ؿ??ϡ?1582 ǯ 10
?? 4 ???ʹߤΥ??쥴?ꥪ???ӡ?
?????Υ??ꥦ?????????ꤷ?ޤ????? ??????
jdate() ?????? ndaysj()
?ϰ??Ӥ??ƥ??ꥦ?????????????ꤷ?ޤ???
?????? 2 ?Ĥ????ǤϤ??뤦ǯ?????????㤤?ޤ??? ???ꥦ?????Ǥ? 4 ???ܿ???ǯ?Ϥ??٤Ƥ??뤦ǯ?Ǥ????? ???쥴?ꥪ???ǤϤ??Τ????? 100 ???ܿ??ǡ?400 ?? ?ܿ??ǤϤʤ?ǯ???????ޤ??? ???ʤ?????1700, 1800, 1900, 2100 ǯ?Ϥ??뤦ǯ?ǤϤʤ??? 2000 ǯ?Ϥ??뤦ǯ?ˤʤ??ޤ??? ???ο????ʵ?§?ϡ?1582 ǯ 10 ?? 4 ???ˡ? Ʊ???ʹߤ? 10 ???????????뤳?Ȥdz??Ϥ????ޤ????? ???ȥ??å????ȤΤۤȤ??ɤϡ? 16 ???????ޤǤˤ??ο????????Ѥ??ޤ??????? ??????20 ?????ޤǤʤ????ꥦ?????ˤȤɤޤ??⤢???ޤ????? ?ѹ??Ȥ??ο?̱?Ϥ????????ڤ??ؤ????Τϡ?1752 ǯ 9 ?? 2 ???Ǥ??????? ???λ????ǤϤ??Ǥ? 11 ????????????ɬ?פ??????ޤ?????
?ؿ?
week()
?ϡ? nd
?ǻ??ꤵ?줿???ֹ??????դ????ޤޤ??뽵?ֹ????֤??ޤ???
???? *year ?ϡ????ν?
(??Ⱦʬ?ʾ?)
???ޤޤ???ǯ?????ꤵ???ޤ???
???ֹ??ϡ???ǯ?? 3
???ʾ夬?ޤޤ????? 1 ???? 1 ?Ȥ??ơ?
???֤˿??????ޤ???
???Ϸ??????????Ϥޤ??ޤ???
???δؿ??ϥ??쥴?ꥪ?????????????????ޤ???
?ؿ?
weekday()
?ϡ? nd
?ǻ??ꤵ?줿???ֹ??????դ??????? (???? = 0 ??
???? = 6) ???֤??ޤ???
??¤?? date ?? ⟨calendar.h⟩ ?????????????Ƥ??ޤ??????Υե??????ɤ? ?ޤߤޤ???
int y; /∗ year (0000 - ????) ∗/ int m; /∗ month (1 - 12) ∗/ int d; /∗ day of month (1 - 31) ∗/
0 ǯ?????˲Ȥμ??Ǥ? "1 B.C." ?Ƚ??ޤ?????ŷʸ?ؼԤȤ??Υ饤?֥????Ǥ? "0" ??ɽ???????ޤ???
??Ϣ????
????
???ֹ??? ISO 8601: 1988 ??Ŭ?礷?Ƥ??ޤ???
????
calendar ?饤?֥?????
FreeBSD 3.0
?ǤϤ??????о줷?ޤ?????
????
???Υޥ˥奢???ڡ????ȥ饤?֥????ϡ? Wolfgang Helbig ⟨helbig@FreeBSD.org⟩ ?ˤ??äƽ??ޤ?????
?Х?
???Υ饤?֥????Ϥ??????ƿ??Ť˥????ǥ????줿?Τǡ? ?Ĥ??줿?Х??Ϥ????ޤ?????
| November 29, 1997 | FreeBSD 14.3-RELEASE |
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