1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . V A L _ L L D --
9 -- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
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, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
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. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 with System.Val_Real; use System.Val_Real;
36 package body System.Val_LLD is
38 ----------------------------
39 -- Scan_Long_Long_Decimal --
40 ----------------------------
42 -- We use the floating-point circuit for now, this will be OK on a PC,
43 -- but definitely does NOT have the required precision if the longest
44 -- float type is IEEE double. This must be fixed in the future ???
46 function Scan_Long_Long_Decimal
48 Ptr : not null access Integer;
50 Scale : Integer) return Long_Long_Integer
52 Val : Long_Long_Float;
54 Val := Scan_Real (Str, Ptr, Max);
55 return Long_Long_Integer (Val * 10.0 ** Scale);
56 end Scan_Long_Long_Decimal;
58 -----------------------------
59 -- Value_Long_Long_Decimal --
60 -----------------------------
62 -- Again we cheat and use floating-point ???
64 function Value_Long_Long_Decimal
66 Scale : Integer) return Long_Long_Integer
69 return Long_Long_Integer (Value_Real (Str) * 10.0 ** Scale);
70 end Value_Long_Long_Decimal;