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email-tracker/external/duckdb/extension/tpcds/dsdgen/include/dsdgen-c/date.h
2025-10-24 19:21:19 -05:00

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C

/*
* Legal Notice
*
* This document and associated source code (the "Work") is a part of a
* benchmark specification maintained by the TPC.
*
* The TPC reserves all right, title, and interest to the Work as provided
* under U.S. and international laws, including without limitation all patent
* and trademark rights therein.
*
* No Warranty
*
* 1.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE INFORMATION
* CONTAINED HEREIN IS PROVIDED "AS IS" AND WITH ALL FAULTS, AND THE
* AUTHORS AND DEVELOPERS OF THE WORK HEREBY DISCLAIM ALL OTHER
* WARRANTIES AND CONDITIONS, EITHER EXPRESS, IMPLIED OR STATUTORY,
* INCLUDING, BUT NOT LIMITED TO, ANY (IF ANY) IMPLIED WARRANTIES,
* DUTIES OR CONDITIONS OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
* PURPOSE, OF ACCURACY OR COMPLETENESS OF RESPONSES, OF RESULTS, OF
* WORKMANLIKE EFFORT, OF LACK OF VIRUSES, AND OF LACK OF NEGLIGENCE.
* ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT,
* QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT
* WITH REGARD TO THE WORK.
* 1.2 IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THE WORK BE LIABLE TO
* ANY OTHER PARTY FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO THE
* COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS
* OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT,
* INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY,
* OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT
* RELATING TO THE WORK, WHETHER OR NOT SUCH AUTHOR OR DEVELOPER HAD
* ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
*
* Contributors:
* Gradient Systems
*/
#ifndef R_DATE_H
#define R_DATE_H
#include "mathops.h"
typedef struct DATE_T {
int flags;
int year;
int month;
int day;
int julian;
} date_t;
date_t *mk_date(void);
int jtodt(date_t *dest, int i);
int strtodt(date_t *dest, char *s);
int strtotime(char *str);
char *dttostr(date_t *d);
int dttoj(date_t *d);
int date_t_op(date_t *dest, int o, date_t *d1, date_t *d2);
int set_dow(date_t *d);
int is_leap(int year);
int day_number(date_t *d);
int date_part(date_t *d, int p);
int set_outfile(int i);
int getDateWeightFromJulian(int jDay, int nDistribution);
#define CENTURY_SHIFT 20 /* years before this are assumed to be 2000's */
/*
* DATE OPERATORS
*/
#define OP_FIRST_DOM 0x01 /* get date of first day of current month */
#define OP_LAST_DOM 0x02 /* get date of last day of current month; LY == 2/28) */
#define OP_SAME_LY 0x03 /* get date for same day/month, last year */
#define OP_SAME_LQ 0x04 /* get date for same offset in the prior quarter */
extern char *weekday_names[];
#endif /* R_DATE_H */