/* * ymd2yd - compute the date in the year from y/m/d * * A thin wrapper around a more general calendar function. */ #include #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; }