------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . W I D _ L L U -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2009, 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 3, 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. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- 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;