CEILING (real-number [,KIND])

  Class:  Elemental function - Generic

  Returns the smallest integer greater than or equal to its argument.

  The result is of type default integer (unless KIND specifies a
  different integer KIND).  The value of the result is equal to the
  smallest integer greater than or equal to the real-number.  The
  result is undefined if the value cannot be represented in the
  default integer range.