anchor.diff:  
     ! Test counter; 
     ! modify if adding new tests
  -  ntests = 159
  +  ntests = 161
   
     CALL initialize_tests(tests,ntests)
   
  
positive.code: !
  !=======================================================================
  
    USE iso_fortran_env
    USE iso_c_binding
  
    TYPE(datetime)  :: a
  
negative.code: 
    a = a % now()
    tests(n) = assert(a == num2date(date2num(a)),&
                      'datetime = num2date(date2num(datetime)) (now)')
    n = n+1
  
    ! Test for overflowing month
    a = datetime(2014,11,30,1)
    tests(n) = assert(a == num2date(date2num(a)),&
                      'datetime = num2date(date2num(datetime)) (overflowing month)')
    n = n+1
  
    ! Test for overflowing year
    a = datetime(2014,12,31,1)
    tests(n) = assert(a == num2date(date2num(a)),&
                      'datetime = num2date(date2num(datetime)) (overflowing year)')
    n = n+1
  
    !---------------------------------------------------------------------
      
    WRITE(UNIT=STDOUT,FMT='(71("-"))')
  