CHAR (integer [,kind])

  Class:  Elemental function - Generic

  Returns the character in the specified position of the processor's
  character set.  It is the inverse of the function ICHAR.

  The input value must be in the range 0 to n - 1, where "n" is the
  number of characters in the processor's character set.

  +------+---------+----------+------------+-------------+
  | Args | Generic | Specific |  Argument  | Result Type |
  +------+---------+----------+------------+-------------+
  |  1   |   --    |  --      | INTEGER*1  | CHARACTER   |
  |      |         |  --      | INTEGER*2  | CHARACTER   |
  |      |         |  CHAR    | INTEGER*4  | CHARACTER   |
  |      |         |  --      | INTEGER*8  | CHARACTER   |
  +------+---------+----------+------------+-------------+

  This function cannot be passed as an actual argument.