55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* HEADER - P_DATE.H
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Copyright (C) Psion PLC 1991-92
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VER DATE BY DESCRIPTION
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===== ======== === ===========
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1.00F 26/04/90 NSM First relase
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1.10F 07/07/92 NSM Second release
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1.11F 31/08/23 AB #ifndef fix
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*/
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#ifndef P_DATE_H
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#define P_DATE_H
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#include <stdepoc.h>
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#define P_NSECDAY 86400l /* number of seconds in a day */
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/*
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Convert day since 1900 to day in week, Monday=0
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*/
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#define P_WEEK(d) ((INT)((d)%7)) /* JAN 1 1900 was a Monday */
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typedef struct
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{
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unsigned long int day; /* day number since 1900, up to 2155, 0 to approx 93000 */
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unsigned long int sec; /* seconds in day, 0 to 86399 */
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} P_DAYSEC;
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typedef struct
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{
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unsigned char year; /* Year - 1900 */
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unsigned char month; /* Month number in year, 0 to 11 */
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unsigned char day; /* Day number in month, 0 to 30 */
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unsigned char hour; /* Hour in day, 0 to 23 */
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unsigned char minute; /* Minute in hour, 0 to 59 */
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unsigned char second; /* Second in minute, 0 to 59 */
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unsigned short int yrday; /* day in year */
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} P_DATE;
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#ifdef __cplusplus
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extern "C" {
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#endif
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#pragma save,call(reg_param =>(si,di),reg_saved =>(bx,cx,dx,si,di,EPOC_SAVE))
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extern int p_dstodt(const P_DAYSEC *,P_DATE *);
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extern int p_dttods(const P_DATE *,P_DAYSEC *);
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#pragma call(reg_param =>(si,di),reg_saved =>(cx,dx,si,di,EPOC_SAVE))
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extern int p_dstost(const P_DAYSEC *,unsigned long int *);
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#pragma call(reg_param =>(bx,di),reg_saved =>(bx,si,di,EPOC_SAVE))
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extern void p_sttods(const unsigned long int *,P_DAYSEC *);
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#pragma call(reg_param =>(di,si,bx,cx),reg_saved =>(bx,cx,dx,si,di,EPOC_SAVE))
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extern int p_dt2str(char *str,const char *fmt,const P_DATE *dt);
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extern int p_ds2str(char *str,const char *fmt,const P_DAYSEC *ds);
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extern int p_now2str(char *str,const char *fmt);
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extern int p_st2str(char *str,const char *fmt,const unsigned long int *st);
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#pragma restore
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#ifdef __cplusplus
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}
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#endif
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#endif // P_DATE_H
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