------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . V A L _ D E C -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992,1993,1994,1995,1996 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 2, 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with System.Val_Real; use System.Val_Real; package body System.Val_Dec is ------------------ -- Scan_Decimal -- ------------------ -- For decimal types where Size < Integer'Size, it is fine to use -- the floating-point circuit, since it certainly has sufficient -- precision for any reasonable hardware, and we just don't support -- things on junk hardware! function Scan_Decimal (Str : String; Ptr : access Integer; Max : Integer; Scale : Integer) return Integer is Val : Long_Long_Float; begin Val := Scan_Real (Str, Ptr, Max); return Integer (Val * 10.0 ** Scale); end Scan_Decimal; ------------------- -- Value_Decimal -- ------------------- -- Again, we use the real circuit for this purpose function Value_Decimal (Str : String; Scale : Integer) return Integer is begin return Integer (Value_Real (Str) * 10.0 ** Scale); end Value_Decimal; end System.Val_Dec;