------------------------------------------------------------------------------ -- -- -- GNAT RUNTIME COMPONENTS -- -- -- -- S Y S T E M . W I D _ L L U -- -- -- -- B o d y -- -- -- -- -- -- Copyright (C) 1992,1993,1994 Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ 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;