gcc/ada/a-decima.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                          A D A . D E C I M A L                           --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-1997 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- This specification is derived from the Ada Reference Manual for use with --
  13 -- GNAT. The copyright notice above, and the license provisions that follow --
  14 -- apply solely to the  contents of the part following the private keyword. --
  15 --                                                                          --
  16 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  17 -- terms of the  GNU General Public License as published  by the Free Soft- --
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  20 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  21 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  22 -- for  more details.  You should have  received  a copy of the GNU General --
  23 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
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  25 -- MA 02111-1307, USA.                                                      --
  26 --                                                                          --
  27 -- As a special exception,  if other files  instantiate  generics from this --
  28 -- unit, or you link  this unit with other files  to produce an executable, --
  29 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  30 -- covered  by the  GNU  General  Public  License.  This exception does not --
  31 -- however invalidate  any other reasons why  the executable file  might be --
  32 -- covered by the  GNU Public License.                                      --
  33 --                                                                          --
  34 -- GNAT was originally developed  by the GNAT team at  New York University. --
  35 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  36 --                                                                          --
  37 ------------------------------------------------------------------------------
  38
  39 package Ada.Decimal is
  40 pragma Pure (Decimal);
  41
  42    --  The compiler makes a number of assumptions based on the following five
  43    --  constants (e.g. there is an assumption that decimal values can always
  44    --  be represented in 64-bit signed binary form), so code modifications are
  45    --  required to increase these constants.
  46
  47    Max_Scale : constant := +18;
  48    Min_Scale : constant := -18;
  49
  50    Min_Delta : constant := 1.0E-18;
  51    Max_Delta : constant := 1.0E+18;
  52
  53    Max_Decimal_Digits : constant := 18;
  54
  55    generic
  56       type Dividend_Type  is delta <> digits <>;
  57       type Divisor_Type   is delta <> digits <>;
  58       type Quotient_Type  is delta <> digits <>;
  59       type Remainder_Type is delta <> digits <>;
  60
  61    procedure Divide
  62      (Dividend  : in Dividend_Type;
  63       Divisor   : in Divisor_Type;
  64       Quotient  : out Quotient_Type;
  65       Remainder : out Remainder_Type);
  66
  67 private
  68    pragma Inline (Divide);
  69
  70 end Ada.Decimal;