Section 11,23: DBLE

 DBLE (number)

 A function that converts the argument into a REAL*8 value.

 +------+-----------+----------+------------+-------------+        
 | Args | Generic   | Specific |  Argument  | Result Type |
 +------+-----------+----------+------------+-------------+
 |  1   |  DBLE     |   --     | INTEGER*1  | REAL*8      |
 |      |           |   --     | INTEGER*2  | REAL*8      |
 |      |           |   --     | INTEGER*4  | REAL*8      |
 |      |see note 1 |   --     | INTEGER*8  | REAL*8      |         
 |      |           |  DBLE    | REAL*4     | REAL*8      |
 |      |           |   --     | REAL*8     | REAL*8      |
 |      |see note 2 |  DBLEQ   | REAL*16    | REAL*8      |
 |      |           |   --     | COMPLEX*8  | REAL*8      |
 |      |           |   --     | COMPLEX*16 | REAL*8      |
 +------+-----------+----------+------------+-------------+

 NOTE 1: This argument type is only available on AXP systems.
 NOTE 2: DBLEQ is not available in DEC Fortran.