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--          Copyright (C) 1992-2019, Free Software Foundation, Inc.         --
10--                                                                          --
11-- This specification is derived from the Ada Reference Manual for use with --
12-- GNAT. The copyright notice above, and the license provisions that follow --
13-- apply solely to the  contents of the part following the private keyword. --
14--                                                                          --
15-- GNAT is free software;  you can  redistribute it  and/or modify it under --
16-- terms of the  GNU General Public License as published  by the Free Soft- --
17-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
18-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
19-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
20-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
21--                                                                          --
22-- As a special exception under Section 7 of GPL version 3, you are granted --
23-- additional permissions described in the GCC Runtime Library Exception,   --
24-- version 3.1, as published by the Free Software Foundation.               --
25--                                                                          --
26-- You should have received a copy of the GNU General Public License and    --
27-- a copy of the GCC Runtime Library Exception along with this program;     --
28-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
29-- <http://www.gnu.org/licenses/>.                                          --
30--                                                                          --
31-- GNAT was originally developed  by the GNAT team at  New York University. --
32-- Extensive contributions were provided by Ada Core Technologies Inc.      --
33--                                                                          --
34------------------------------------------------------------------------------
35
36package Ada.Decimal is
37   pragma Pure;
38
39   --  The compiler makes a number of assumptions based on the following five
40   --  constants (e.g. there is an assumption that decimal values can always
41   --  be represented in 64-bit signed binary form), so code modifications are
42   --  required to increase these constants.
43
44   Max_Scale : constant := +18;
45   Min_Scale : constant := -18;
46
47   Min_Delta : constant := 1.0E-18;
48   Max_Delta : constant := 1.0E+18;
49
50   Max_Decimal_Digits : constant := 18;
51
52   generic
53      type Dividend_Type  is delta <> digits <>;
54      type Divisor_Type   is delta <> digits <>;
55      type Quotient_Type  is delta <> digits <>;
56      type Remainder_Type is delta <> digits <>;
57
58   procedure Divide
59     (Dividend  : Dividend_Type;
60      Divisor   : Divisor_Type;
61      Quotient  : out Quotient_Type;
62      Remainder : out Remainder_Type);
63
64private
65   pragma Inline (Divide);
66
67end Ada.Decimal;
68