File : 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 -- Copyright (C) 1992-2009, 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 -- --
23 -- --
24 -- --
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
36 package 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
64 private
65 pragma Inline (Divide);
66
67 end Ada.Decimal;