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1 706 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--                    S Y S T E M . D I M . F L O A T _ I O                 --
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--                                                                          --
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--                                 S p e c                                  --
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--                                                                          --
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--          Copyright (C) 2011-2012, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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--  This package provides output routines for float dimensioned types. All Put
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--  routines are modelled after those in package Ada.Text_IO.Float_IO with the
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--  addition of an extra default parameter.
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--  Parameter Symbol may be used in the following manner (all the examples are
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--  based on the MKS system of units as defined in package System.Dim.Mks):
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--  Case 1. A value is supplied for Symbol
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--    The string appears as a suffix of Item
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--      Obj : Mks_Type := 2.6;
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--      Put (Obj, 1, 1, 0, " dimensionless");
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--      The corresponding output is: 2.6 dimensionless
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--  Case 2. No value is supplied for Symbol and Item is dimensionless
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--    Item appears without a suffix
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--      Obj : Mks_Type := 2.6;
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--      Put (Obj, 1, 1, 0);
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--      The corresponding output is: 2.6
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--  Case 3. No value is supplied for Symbol and Item has a dimension
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--    If the type of Item is a dimensioned subtype whose symbolic name is not
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--    empty, then the symbolic name appears as a suffix.
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--      subtype Length is Mks_Type
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--        with
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--         Dimension => ('m',
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--           Meter =>  1,
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--           others => 0);
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--      Obj : Length := 2.3 * dm;
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--      Put (Obj, 1, 2, 0);
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--      The corresponding output is: 0.23 m
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--    Otherwise, a new string is created and appears as a suffix of Item.
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--    This string results in the successive concatanations between each
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--    dimension symbolic name raised by its corresponding dimension power from
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--    the dimensions of Item.
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--      subtype Random is Mks_Type
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--        with
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--         Dimension => ("",
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--         Meter =>   3,
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--         Candela => -1,
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--         others =>  0);
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--      Obj : Random := 5.0;
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--      Put (Obj);
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--      The corresponding output is: 5.0 m**3.cd**(-1)
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--      Put (3.3 * km * dm * min, 5, 1, 0);
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--      The corresponding output is: 19800.0 m**2.s
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with Ada.Text_IO; use Ada.Text_IO;
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generic
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   type Num_Dim_Float is digits <>;
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package System.Dim.Float_IO is
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   Default_Fore : Field := 2;
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   Default_Aft  : Field := Num_Dim_Float'Digits - 1;
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   Default_Exp  : Field := 3;
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   procedure Put
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     (File    : File_Type;
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      Item    : Num_Dim_Float;
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      Fore    : Field  := Default_Fore;
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      Aft     : Field  := Default_Aft;
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      Exp     : Field  := Default_Exp;
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      Symbols : String := "");
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   procedure Put
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     (Item    : Num_Dim_Float;
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      Fore    : Field  := Default_Fore;
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      Aft     : Field  := Default_Aft;
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      Exp     : Field  := Default_Exp;
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      Symbols : String := "");
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   procedure Put
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     (To      : out String;
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      Item    : Num_Dim_Float;
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      Aft     : Field  := Default_Aft;
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      Exp     : Field  := Default_Exp;
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      Symbols : String := "");
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   pragma Inline (Put);
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end System.Dim.Float_IO;

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