1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . V A L _ L L D --
9 -- Copyright (C) 1992,1993,1994,1995,1996 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, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, 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
51 return Long_Long_Integer
53 Val
: Long_Long_Float;
56 Val
:= Scan_Real
(Str
, Ptr
, Max
);
57 return Long_Long_Integer (Val
* 10.0 ** Scale
);
58 end Scan_Long_Long_Decimal
;
60 -----------------------------
61 -- Value_Long_Long_Decimal --
62 -----------------------------
64 -- Again we cheat and use floating-point ???
66 function Value_Long_Long_Decimal
69 return Long_Long_Integer
72 return Long_Long_Integer (Value_Real
(Str
) * 10.0 ** Scale
);
73 end Value_Long_Long_Decimal
;