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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-valdec.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-valdec.adb | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-valdec.adb b/gcc-4.2.1/gcc/ada/s-valdec.adb new file mode 100644 index 000000000..dbac049ed --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-valdec.adb @@ -0,0 +1,70 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S Y S T E M . V A L _ D E C -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, 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; |