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- ------------------------------------------------------------------------------
- -- --
- -- GNAT RUNTIME COMPONENTS --
- -- --
- -- S Y S T E M . W I D _ L L U --
- -- --
- -- B o d y --
- -- --
- -- $Revision: 1.4 $ --
- -- --
- -- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
- -- --
- -- The GNAT library is free software; you can redistribute it and/or modify --
- -- it under terms of the GNU Library General Public License as published by --
- -- the Free Software Foundation; either version 2, or (at your option) any --
- -- later version. The GNAT library is distributed in the hope that it will --
- -- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
- -- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
- -- Library General Public License for more details. You should have --
- -- received a copy of the GNU Library General Public License along with --
- -- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
- -- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
- -- --
- ------------------------------------------------------------------------------
-
- with System.Unsigned_Types; use System.Unsigned_Types;
-
- package body System.Wid_LLU is
-
- ------------------------------
- -- Width_Long_Long_Unsigned --
- ------------------------------
-
- function Width_Long_Long_Unsigned
- (Lo, Hi : Long_Long_Unsigned)
- return Natural
- is
- W : Natural;
- T : Long_Long_Unsigned;
-
- begin
- if Lo > Hi then
- return 0;
-
- else
- -- Minimum value is 2, one for sign, one for digit
-
- W := 2;
-
- -- Get max of absolute values, but avoid bomb if we have the maximum
- -- negative number (note that First + 1 has same digits as First)
-
- T := Long_Long_Unsigned'Max (Lo, Hi);
-
- -- Increase value if more digits required
-
- while T >= 10 loop
- T := T / 10;
- W := W + 1;
- end loop;
-
- return W;
- end if;
-
- end Width_Long_Long_Unsigned;
-
- end System.Wid_LLU;
-