1 ------------------------------------------------------------------------------
3 -- GNAT RUNTIME COMPONENTS --
5 -- S Y S T E M . W I D _ L L U --
10 -- Copyright (C) 1992,1993,1994 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNAT was originally developed by the GNAT team at New York University. --
31 -- Extensive contributions were provided by Ada Core Technologies Inc. --
33 ------------------------------------------------------------------------------
35 with System
.Unsigned_Types
; use System
.Unsigned_Types
;
37 package body System
.Wid_LLU
is
39 ------------------------------
40 -- Width_Long_Long_Unsigned --
41 ------------------------------
43 function Width_Long_Long_Unsigned
44 (Lo
, Hi
: Long_Long_Unsigned
)
48 T
: Long_Long_Unsigned
;
55 -- Minimum value is 2, one for sign, one for digit
59 -- Get max of absolute values, but avoid bomb if we have the maximum
60 -- negative number (note that First + 1 has same digits as First)
62 T
:= Long_Long_Unsigned
'Max (Lo
, Hi
);
64 -- Increase value if more digits required
74 end Width_Long_Long_Unsigned
;