1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                       S Y S T E M . V A L _ L L D                        --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
10--                                                                          --
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 3,  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.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32with System.Val_Real; use System.Val_Real;
33
34package body System.Val_LLD is
35
36   ----------------------------
37   -- Scan_Long_Long_Decimal --
38   ----------------------------
39
40   --  We use the floating-point circuit for now, this will be OK on a PC,
41   --  but definitely does NOT have the required precision if the longest
42   --  float type is IEEE double. This must be fixed in the future ???
43
44   function Scan_Long_Long_Decimal
45     (Str   : String;
46      Ptr   : not null access Integer;
47      Max   : Integer;
48      Scale : Integer) return Long_Long_Integer
49   is
50      Val : Long_Long_Float;
51   begin
52      Val := Scan_Real (Str, Ptr, Max);
53      return Long_Long_Integer (Val * 10.0 ** Scale);
54   end Scan_Long_Long_Decimal;
55
56   -----------------------------
57   -- Value_Long_Long_Decimal --
58   -----------------------------
59
60   --  Again we cheat and use floating-point ???
61
62   function Value_Long_Long_Decimal
63     (Str   : String;
64      Scale : Integer) return Long_Long_Integer
65   is
66   begin
67      return Long_Long_Integer (Value_Real (Str) * 10.0 ** Scale);
68   end Value_Long_Long_Decimal;
69
70end System.Val_LLD;
71