! *** 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
    
    
    !  Interface definitions for LIB$VM package
    ! 
    !  LIB$CREATE_VM_ZONE algorithm codes
      DECLARE LONG CONSTANT LIB$K_VM_FIRST_FIT = 1  !  First fit
      DECLARE LONG CONSTANT LIB$K_VM_QUICK_FIT = 2  !  Quick fit, with fixed queues of preferred sizes
      DECLARE LONG CONSTANT LIB$K_VM_FREQ_SIZES = 3  !  First fit, with frequent sizes cache
      DECLARE LONG CONSTANT LIB$K_VM_FIXED = 4  !  Fixed size blocks
    !  LIB$CREATE_VM_ZONE flag definitions
      DECLARE LONG CONSTANT LIB$M_VM_BOUNDARY_TAGS = 1  !  Boundary tagged blocks
      DECLARE LONG CONSTANT LIB$M_VM_GET_FILL0 = 2  !  0-fill for LIB$GET_VM
      DECLARE LONG CONSTANT LIB$M_VM_GET_FILL1 = 4  !  1-fill for LIB$GET_VM
      DECLARE LONG CONSTANT LIB$M_VM_FREE_FILL0 = 8  !  0-fill for LIB$FREE_VM
      DECLARE LONG CONSTANT LIB$M_VM_FREE_FILL1 = 16  !  1-fill for LIB$FREE_VM
      DECLARE LONG CONSTANT LIB$M_VM_EXTEND_AREA = 32  !  Add extent to existing area if possible
      DECLARE LONG CONSTANT LIB$M_VM_NO_EXTEND = 64  !  Area is not allowed to be extended
      DECLARE LONG CONSTANT LIB$M_VM_TAIL_LARGE = 128  !  Add larger than normal areas at the tail