ACHAR (integer-number)

  Class:  Elemental function - Generic

  Returns the character in a specified position of the ASCII
  character set, even if the processor's default character set is
  different.  It is the inverse of the IACHAR function.  In HP
  Fortran, ACHAR is equivalent to the CHAR function.

  The result is of type character of length 1 with the kind type
  parameter value of KIND ('A').

  If I has a value within the range 0 to 127, the result is the
  character in position I of the ASCII character set.