! *** PREDECLARED TYPES
     
      %IF %DECLARED ( %BASIC$QUADWORD_DECLARED ) = 0 %THEN
         RECORD BASIC$QUADWORD
            LONG FILL ( 2 )
         END RECORD
         %LET %BASIC$QUADWORD_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$OCTAWORD_DECLARED ) = 0 %THEN
         RECORD BASIC$OCTAWORD
            LONG FILL ( 4 )
         END RECORD
         %LET %BASIC$OCTAWORD_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$HFLOAT_AXP_DECLARED ) = 0 %THEN
         RECORD BASIC$HFLOAT_AXP
            LONG FILL ( 4 )
         END RECORD
         %LET %BASIC$HFLOAT_AXP_DECLARED = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$F_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$F_FLOATING_COMPLEX
            SINGLE REAL_PART
            SINGLE IMAGINARY_PART
         END RECORD
         %LET %BASIC$F_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$D_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$D_FLOATING_COMPLEX
            DOUBLE REAL_PART
            DOUBLE IMAGINARY_PART
         END RECORD
         %LET %BASIC$D_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$G_FLOATING_COMPLEX_DECL ) = 0 %THEN
         RECORD BASIC$G_FLOATING_COMPLEX
            GFLOAT REAL_PART
            GFLOAT IMAGINARY_PART
         END RECORD
         %LET %BASIC$G_FLOATING_COMPLEX_DECL = 1
      %END %IF
     
      %IF %DECLARED ( %BASIC$H_FLOAT_AXP_CMPLX_DCL ) = 0 %THEN
         RECORD BASIC$H_FLOATING_COMPLEX_AXP
            BASIC$HFLOAT_AXP REAL_PART
            BASIC$HFLOAT_AXP IMAGINARY_PART
         END RECORD
         %LET %BASIC$H_FLOAT_AXP_CMPLX_DCL = 1
      %END %IF
    
    
      DECLARE LONG CONSTANT RSDM$_JOIN_SYSTEM = 1  !  System RD Join function
      DECLARE LONG CONSTANT RSDM$_JOIN_DEFAULT = 2  !  Process default RD Join function
      DECLARE LONG CONSTANT RSDM$_JOIN_DOMAIN = 3  !  Other RD Join function
      DECLARE LONG CONSTANT RSDM$_LEAVE = 4  !  Leave RD function
      DECLARE LONG CONSTANT RSDM$K_SYSTEM_RSDM_ID = 1
    !  System RSDM_ID
      DECLARE LONG CONSTANT RSDM$K_PROCESS_RSDM_ID = 2
    !  Process RSDM_ID
    ! +
    !  RSDM$ bitfields 
    ! -
      DECLARE LONG CONSTANT RSDM$M_READ = x'00000001'
      DECLARE LONG CONSTANT RSDM$M_WRITE = x'00000002'
      DECLARE LONG CONSTANT RSDM$M_LOCK = x'00000004'
      DECLARE LONG CONSTANT RSDM$S_RSDMBITS = 4
      record RSDMBITS
         variant
            case
               group RSDM$R_FILL_10_
                  variant
                  case
                     LONG RSDM$L_MISC_ACCESS
                  case
                     group RSDM$R_FILL_11_
                         !  Read access
                         !  Write access
                         !  Lock access
                        BYTE READ_bits   ! COMMENT ADDED BY SDL - READ_bits contains bits READ through FILL_12_
                     end group RSDM$R_FILL_11_
                  end variant
               end group RSDM$R_FILL_10_
         end variant
      end record RSDMBITS