| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S Y S T E M . V A L _ D E C -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2013, 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 3, 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. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- 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 : not null 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; |
