! *** 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
    
    
    ! 
    !         date/time xab definitions
    !                 $xabdatdef
    ! 
    ! 
      DECLARE LONG CONSTANT XAB$C_DAT = 18  !  xabdat id code
      DECLARE LONG CONSTANT XAB$K_DATLEN_V2 = 36  !  Version 2 XABDAT length
      DECLARE LONG CONSTANT XAB$C_DATLEN_V2 = 36  !  Version 2 XABDAT length
      DECLARE LONG CONSTANT XAB$K_DATLEN_V54 = 44  !  length of XABDAT
      DECLARE LONG CONSTANT XAB$C_DATLEN_V54 = 44  !  length of XABDAT
      DECLARE LONG CONSTANT XAB$K_DATLEN_PRE_ACCDATES = 60  !  XABDAT length before addition of 3 access dates 
      DECLARE LONG CONSTANT XAB$C_DATLEN_PRE_ACCDATES = 60  !  XABDAT length before addition of 3 access dates 
      DECLARE LONG CONSTANT XAB$K_DATLEN_POST_ACCDATES = 84  !  XABDAT length after addition of 3 access dates 
      DECLARE LONG CONSTANT XAB$C_DATLEN_POST_ACCDATES = 84  !  XABDAT length after addition of 3 access dates 
      DECLARE LONG CONSTANT XAB$S_XABDATDEF = 84
      record XABDATDEF
         BYTE XABDATDEF$$_FILL_1
         BYTE XABDATDEF$$_FILL_2
         WORD XABDATDEF$$_FILL_3
         LONG XABDATDEF$$_FILL_4            ! HAS SAME COD, BLN, SPARE AND NXT FIELD
    ! THESE 4 FIELDS ARE COMMON TO ALL XABS AND
    ! HAVE BEEN DEFINED BY $XABDEF
         WORD XABDATDEF$$_FILL_5            ! REVISION ?,DEFINED IN $XABDEF,SINCE COMMON TO DAT ? RDT
         WORD XABDATDEF$$_FILL_6            !  spare
         BASIC$QUADWORD XABDATDEF$$_FILL_7  !  revision date ? time,defined in $xabdef
         group XAB$R_CDT_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_CDT  !  creation date ? time
               case
                  group XAB$R_CDT_FIELDS
                     LONG XAB$L_CDT0
                     LONG XAB$L_CDT4
                  end group XAB$R_CDT_FIELDS
            end variant
         end group XAB$R_CDT_OVERLAY
         group XAB$R_EDT_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_EDT  !  expiration date ? time
               case
                  group XAB$R_EDT_FIELDS
                     LONG XAB$L_EDT0
                     LONG XAB$L_EDT4
                  end group XAB$R_EDT_FIELDS
            end variant
         end group XAB$R_EDT_OVERLAY
         group XAB$R_BDT_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_BDT  !  backup date and time
               case
                  group XAB$R_BDT_FIELDS
                     LONG XAB$L_BDT0
                     LONG XAB$L_BDT4
                  end group XAB$R_BDT_FIELDS
            end variant
         end group XAB$R_BDT_OVERLAY
         group XAB$R_RCD_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_RCD  !  Recorded date and time
               case
                  group XAB$R_RCD_FIELDS
                     LONG XAB$L_RCD0
                     LONG XAB$L_RCD4
                  end group XAB$R_RCD_FIELDS
            end variant
         end group XAB$R_RCD_OVERLAY
         group XAB$R_EFF_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_EFF  !  Effective date and time
               case
                  group XAB$R_EFF_FIELDS
                     LONG XAB$L_EFF0
                     LONG XAB$L_EFF4
                  end group XAB$R_EFF_FIELDS
            end variant
         end group XAB$R_EFF_OVERLAY
         group XAB$R_ACC_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_ACC  !  Access date and time
               case
                  group XAB$R_ACC_FIELDS
                     LONG XAB$L_ACC0
                     LONG XAB$L_ACC4
                  end group XAB$R_ACC_FIELDS
            end variant
         end group XAB$R_ACC_OVERLAY
         group XAB$R_ATT_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_ATT  !  Attribute change date and time
               case
                  group XAB$R_ATT_FIELDS
                     LONG XAB$L_ATT0
                     LONG XAB$L_ATT4
                  end group XAB$R_ATT_FIELDS
            end variant
         end group XAB$R_ATT_OVERLAY
         group XAB$R_MOD_OVERLAY
            variant
               case
                  BASIC$QUADWORD XAB$Q_MOD  !  data Modification date and time
               case
                  group XAB$R_MOD_FIELDS
                     LONG XAB$L_MOD0
                     LONG XAB$L_MOD4
                  end group XAB$R_MOD_FIELDS
            end variant
         end group XAB$R_MOD_OVERLAY
      end record XABDATDEF
    
    !  basealign on aggregate XABDATDEF operates after aggregate end
      DECLARE LONG CONSTANT XAB$K_DATLEN = 84  !  length of XABDAT
      DECLARE LONG CONSTANT XAB$C_DATLEN = 84  !  length of XABDAT