+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S Y S T E M . P O W T E N _ T A B L E --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-1999 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. --
--- --
-------------------------------------------------------------------------------
-
--- This package provides a powers of ten table used for real conversions
-
-package System.Powten_Table is
-pragma Pure (Powten_Table);
-
- Maxpow : constant := 22;
- -- The number of entries in this table is chosen to include powers of ten
- -- that are exactly representable with long_long_float. Assuming that on
- -- all targets we have 53 bits of mantissa for the type, the upper bound is
- -- given by 53/(log 5). If the scaling factor for a string is greater than
- -- Maxpow, it can be obtained by several multiplications, which is less
- -- efficient than with a bigger table, but avoids anomalies at end points.
-
- Powten : constant array (0 .. Maxpow) of Long_Long_Float :=
- (00 => 1.0E+00,
- 01 => 1.0E+01,
- 02 => 1.0E+02,
- 03 => 1.0E+03,
- 04 => 1.0E+04,
- 05 => 1.0E+05,
- 06 => 1.0E+06,
- 07 => 1.0E+07,
- 08 => 1.0E+08,
- 09 => 1.0E+09,
- 10 => 1.0E+10,
- 11 => 1.0E+11,
- 12 => 1.0E+12,
- 13 => 1.0E+13,
- 14 => 1.0E+14,
- 15 => 1.0E+15,
- 16 => 1.0E+16,
- 17 => 1.0E+17,
- 18 => 1.0E+18,
- 19 => 1.0E+19,
- 20 => 1.0E+20,
- 21 => 1.0E+21,
- 22 => 1.0E+22);
-
-end System.Powten_Table;
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