gcc/ada/libgnat/a-decima__128.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) 2020-2023, Free Software Foundation, Inc.       --
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  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 --
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  32 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 --  This is the 128-bit version of this package
  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 128-bit signed binary form), so code modifications are
  44    --  required to increase these constants.
  45
  46    Max_Scale : constant := +38;
  47    Min_Scale : constant := -38;
  48
  49    Min_Delta : constant := 1.0E-38;
  50    Max_Delta : constant := 1.0E+38;
  51
  52    Max_Decimal_Digits : constant := 38;
  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  : Dividend_Type;
  62       Divisor   : Divisor_Type;
  63       Quotient  : out Quotient_Type;
  64       Remainder : out Remainder_Type);
  65
  66 private
  67    pragma Inline (Divide);
  68
  69 end Ada.Decimal;