timeutil_is_leap()

int timeutil_is_leap

(

long int

year

)

Definition at line 137 of file timeutil.c.

Referenced by main(), timeutil_date(), timeutil_doy(), and timeutil_norm().

{
  int res1, res2, res3;

  if (year<70) { year = year + 2000; }
  if (year<100) { year = year + 1900; }

  res1=(int)(year-(int)(year/4)*4);
  res2=(int)(year-(int)(year/100)*100);
  res3=(int)(year-(int)(year/400)*400);

  if (((res1==0) && (res2!=0)) || (res3==0))
  {
    return 1;
  } else {
    return 0;
  }
} /* timeutil_is_leap */

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