------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUNTIME COMPONENTS                          --
--                                                                          --
--                       S Y S T E M . I M G _ B I U                        --
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--                                 S p e c                                  --
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--           Copyright (C) 1992-2000 Free Software Foundation, Inc.         --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- As a special exception,  if other files  instantiate  generics from this --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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------------------------------------------------------------------------------

--  Contains the routine for computing the image in based format of signed and
--  unsigned integers whose size <= Integer'Size for use by Text_IO.Integer_IO
--  and Text_IO.Modular_IO.

with System.Unsigned_Types;

package System.Img_BIU is
pragma Pure (Img_BIU);

   procedure Set_Image_Based_Integer
     (V : Integer;
      B : Natural;
      W : Integer;
      S : out String;
      P : in out Natural);
   --  Sets the signed image of V in based format, using base value B (2..16)
   --  starting at S (P + 1), updating P to point to the last character stored.
   --  The image includes a leading minus sign if necessary, but no leading
   --  spaces unless W is positive, in which case leading spaces are output if
   --  necessary to ensure that the output string is no less than W characters
   --  long. The caller promises that the buffer is large enough and no check
   --  is made for this. Constraint_Error will not necessarily be raised if
   --  this is violated, since it is perfectly valid to compile this unit with
   --  checks off.

   procedure Set_Image_Based_Unsigned
     (V : System.Unsigned_Types.Unsigned;
      B : Natural;
      W : Integer;
      S : out String;
      P : in out Natural);
   --  Sets the unsigned image of V in based format, using base value B (2..16)
   --  starting at S (P + 1), updating P to point to the last character stored.
   --  The image includes no leading spaces unless W is positive, in which case
   --  leading spaces are output if necessary to ensure that the output string
   --  is no less than W characters long. The caller promises that the buffer
   --  is large enough and no check is made for this. Constraint_Error will not
   --  necessarily be raised if this is violated, since it is perfectly valid
   --  to compile this unit with checks off).

end System.Img_BIU;