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ClockConstantsAndTypes.h
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1992-12-05
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//----------------------------------------------------------------------------------------------------
//
// Clock Types and Constants
//
// Clock relies on the 'tm' struct to record its clock and alarm time values.
// Associated defines and macros are based on that struct.
// (Some members are not currently used.)
//
// struct tm {
// int tm_sec; ( 0-59 seconds )
// int tm_min; ( 0-59 minutes )
// int tm_hour; ( 0-23 hour ( 0 is midnite) )
// int tm_mday; ( 1-31 day of month )
// int tm_mon; ( 0-11 month )
// int tm_year; ( 0- year - 1900 )
// int tm_wday; ( 0-6 day of week (Sunday = 0) )
// int tm_yday; ( 0-365 day of year ) (Not Used)
// int tm_isdst; ( flag: daylight savings time in effect ) (Not Used)
// long tm_gmtoff; ( offset from GMT in seconds ) (Not Used)
// char *tm_zone; ( abbreviation of timezone name ) (Not Used)
// };
//
//
// Disclaimer
//
// You may freely copy, distribute and reuse this software and its
// associated documentation. I disclaim any warranty of any kind,
// expressed or implied, as to its fitness for any particular use.
//
//----------------------------------------------------------------------------------------------------
#import <sys/time.h>
#define SUNDAY 0
#define MONDAY 1
#define TUESDAY 2
#define WEDNESDAY 3
#define THURSDAY 4
#define FRIDAY 5
#define SATURDAY 6
#define JANUARY 0
#define FEBRUARY 1
#define MARCH 2
#define APRIL 3
#define MAY 4
#define JUNE 5
#define JULY 6
#define AUGUST 7
#define SEPTEMBER 8
#define OCTOBER 9
#define NOVEMBER 10
#define DECEMBER 11
#define SECOND(tm) ((tm)->tm_sec)
#define MINUTE(tm) ((tm)->tm_min)
#define HOUR(tm) ((tm)->tm_hour)
#define DAY(tm) ((tm)->tm_mday)
#define MONTH(tm) ((tm)->tm_mon)
#define YEAR(tm) ((tm)->tm_year)
#define WEEKDAY(tm) ((tm)->tm_wday)
#define SECONDS(tm) (HOUR(tm) * 3600 + MINUTE(tm) * 60 + SECOND(tm))