SIZEOF

 SIZEOF (arg)

 Class:  Elemental function - Specific

 Returns the number of bytes of storage used by the argument.
 +------+---------+----------+------------------+-------------+   
 | Args | Generic | Specific |    Argument      | Result Type |
 +------+---------+----------+------------------+-------------+
 |   1  |   --    | SIZEOF   | Anything with a  | INTEGER*8   |
 |      |         |   --     | valid data type, |             |
 |      |         |          | except assumed-  |             |
 |      |         |          | size arrays.     |             |
 +------+---------+----------+------------------+-------------+

 This function cannot be passed as an actual argument.