1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUNTIME COMPONENTS -- 4-- -- 5-- S Y S T E M . I M G _ B I U -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1992-2000 Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 2, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING. If not, write -- 19-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, USA. -- 21-- -- 22-- As a special exception, if other files instantiate generics from this -- 23-- unit, or you link this unit with other files to produce an executable, -- 24-- this unit does not by itself cause the resulting executable to be -- 25-- covered by the GNU General Public License. This exception does not -- 26-- however invalidate any other reasons why the executable file might be -- 27-- covered by the GNU Public License. -- 28-- -- 29-- GNAT was originally developed by the GNAT team at New York University. -- 30-- Extensive contributions were provided by Ada Core Technologies Inc. -- 31-- -- 32------------------------------------------------------------------------------ 33 34-- Contains the routine for computing the image in based format of signed and 35-- unsigned integers whose size <= Integer'Size for use by Text_IO.Integer_IO 36-- and Text_IO.Modular_IO. 37 38with System.Unsigned_Types; 39 40package System.Img_BIU is 41pragma Pure (Img_BIU); 42 43 procedure Set_Image_Based_Integer 44 (V : Integer; 45 B : Natural; 46 W : Integer; 47 S : out String; 48 P : in out Natural); 49 -- Sets the signed image of V in based format, using base value B (2..16) 50 -- starting at S (P + 1), updating P to point to the last character stored. 51 -- The image includes a leading minus sign if necessary, but no leading 52 -- spaces unless W is positive, in which case leading spaces are output if 53 -- necessary to ensure that the output string is no less than W characters 54 -- long. The caller promises that the buffer is large enough and no check 55 -- is made for this. Constraint_Error will not necessarily be raised if 56 -- this is violated, since it is perfectly valid to compile this unit with 57 -- checks off. 58 59 procedure Set_Image_Based_Unsigned 60 (V : System.Unsigned_Types.Unsigned; 61 B : Natural; 62 W : Integer; 63 S : out String; 64 P : in out Natural); 65 -- Sets the unsigned image of V in based format, using base value B (2..16) 66 -- starting at S (P + 1), updating P to point to the last character stored. 67 -- The image includes no leading spaces unless W is positive, in which case 68 -- leading spaces are output if necessary to ensure that the output string 69 -- is no less than W characters long. The caller promises that the buffer 70 -- is large enough and no check is made for this. Constraint_Error will not 71 -- necessarily be raised if this is violated, since it is perfectly valid 72 -- to compile this unit with checks off). 73 74end System.Img_BIU; 75