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 --          Copyright (C) 1992-2005, 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 --
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  22 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
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  25 --                                                                          --
  26 -- As a special exception,  if other files  instantiate  generics from this --
  27 -- unit, or you link  this unit with other files  to produce an executable, --
  28 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  29 -- covered  by the  GNU  General  Public  License.  This exception does not --
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  31 -- covered by the  GNU Public License.                                      --
  32 --                                                                          --
  33 -- GNAT was originally developed  by the GNAT team at  New York University. --
  34 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  35 --                                                                          --
  36 ------------------------------------------------------------------------------
  37
  38 package Ada.Decimal is
  39    pragma Pure;
  40
  41    --  The compiler makes a number of assumptions based on the following five
  42    --  constants (e.g. there is an assumption that decimal values can always
  43    --  be represented in 64-bit signed binary form), so code modifications are
  44    --  required to increase these constants.
  45
  46    Max_Scale : constant := +18;
  47    Min_Scale : constant := -18;
  48
  49    Min_Delta : constant := 1.0E-18;
  50    Max_Delta : constant := 1.0E+18;
  51
  52    Max_Decimal_Digits : constant := 18;
  53
  54    generic
  55       type Dividend_Type  is delta <> digits <>;
  56       type Divisor_Type   is delta <> digits <>;
  57       type Quotient_Type  is delta <> digits <>;
  58       type Remainder_Type is delta <> digits <>;
  59
  60    procedure Divide
  61      (Dividend  : in Dividend_Type;
  62       Divisor   : in Divisor_Type;
  63       Quotient  : out Quotient_Type;
  64       Remainder : out Remainder_Type);
  65
  66 private
  67    pragma Inline (Divide);
  68
  69 end Ada.Decimal;