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─────DOUBLE PRECISION───────────────────────────────────────────────────────
 
     Action
 
     Specifies the DOUBLE PRECISION type for user-defined names.
 
     Syntax
 
     DOUBLE PRECISION vname [ [attrs] ] [(dim)] [/values/]
     [, vname[ [attrs] ] [(dim)] [/values/] ]...
 
     Parameter          Description
 
     vname              Name of the variable or function. Cannot be
                        the name of a subroutine or main program.
 
     [attrs]            An optional list of attributes, separated by
                        commas. Valid attributes are: ALIAS, ALLOCATABLE,
                        C, EXTERN, FAR, HUGE, NEAR, PASCAL, REFERENCE,
                        VALUE.
 
     dim                A dimension declarator. Specifying <dim> declares
                        <vname> as an array.
 
     values             A list of constants to initialize <vname> to,
                        separated by commas.
 
     Remarks
 
     The name <vname> is defined for the entire program unit, and
     cannot be defined by any other type statement in that program
     unit.
 
     DOUBLE PRECISION statements must precede all executable
     statements.
 
     A DOUBLE PRECISION variable is accurate to 14 or 15 decimal
     digits.
 
     DOUBLE PRECISION and REAL*8 are the same data type.
 
     Example
 
          DOUBLE PRECISION  varnam
                                    -♦-