day2doy.c

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#include "libcris.h"
 
int main(
  int argc,
  char *argv[]) {
 
  int doy;
 
  /* Check arguments... */
  if (argc < 4)
    ERRMSG("Give parameters: <year> <mon> <day>");
 
  /* Read arguments... */
  const int year = atoi(argv[1]);
  const int mon = atoi(argv[2]);
  const int day = atoi(argv[3]);
 
  /* Convert... */
  day2doy(year, mon, day, &doy);
  printf("%d %d\n", year, doy);
 
  return EXIT_SUCCESS;
}