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freebsd/contrib/ntp/libntp/ymd2yd.c
Cy Schubert 2b15cb3d09 MFV ntp 4.2.8p1 (r258945, r275970, r276091, r276092, r276093, r278284)
Thanks to roberto for providing pointers to wedge this into HEAD.

Approved by:	roberto
2015-03-30 13:30:15 +00:00

27 lines
582 B
C

/*
* ymd2yd - compute the date in the year from y/m/d
*
* A thin wrapper around a more general calendar function.
*/
#include <config.h>
#include "ntp_stdlib.h"
#include "ntp_calendar.h"
int
ymd2yd(
int y,
int m,
int d)
{
/*
* convert y/m/d to elapsed calendar units, convert that to
* elapsed days since the start of the given year and convert
* back to unity-based day in year.
*
* This does no further error checking, since the underlying
* function is assumed to work out how to handle the data.
*/
return ntpcal_edate_to_yeardays(y-1, m-1, d-1) + 1;
}