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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--                    S Y S T E M . D I M . F L O A T _ I O                 --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--          Copyright (C) 2011-2012, Free Software Foundation, Inc.         --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 3,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --

-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

--  This package provides output routines for float dimensioned types. All Put

--  routines are modelled after those in package Ada.Text_IO.Float_IO with the

--  addition of an extra default parameter.

--  Parameter Symbol may be used in the following manner (all the examples are

--  based on the MKS system of units as defined in package System.Dim.Mks):

--  Case 1. A value is supplied for Symbol

--    The string appears as a suffix of Item

--      Obj : Mks_Type := 2.6;

--      Put (Obj, 1, 1, 0, " dimensionless");

--      The corresponding output is: 2.6 dimensionless

--  Case 2. No value is supplied for Symbol and Item is dimensionless

--    Item appears without a suffix

--      Obj : Mks_Type := 2.6;

--      Put (Obj, 1, 1, 0);

--      The corresponding output is: 2.6

--  Case 3. No value is supplied for Symbol and Item has a dimension

--    If the type of Item is a dimensioned subtype whose symbolic name is not

--    empty, then the symbolic name appears as a suffix.

--      subtype Length is Mks_Type

--        with

--         Dimension => ('m',

--           Meter =>  1,

--           others => 0);

--      Obj : Length := 2.3 * dm;

--      Put (Obj, 1, 2, 0);

--      The corresponding output is: 0.23 m

--    Otherwise, a new string is created and appears as a suffix of Item.

--    This string results in the successive concatanations between each

--    dimension symbolic name raised by its corresponding dimension power from

--    the dimensions of Item.

--      subtype Random is Mks_Type

--        with

--         Dimension => ("",

--         Meter =>   3,

--         Candela => -1,

--         others =>  0);

--      Obj : Random := 5.0;

--      Put (Obj);

--      The corresponding output is: 5.0 m**3.cd**(-1)

--      Put (3.3 * km * dm * min, 5, 1, 0);

--      The corresponding output is: 19800.0 m**2.s

with Ada.Text_IO; use Ada.Text_IO;

generic

   type Num_Dim_Float is digits <>;

package System.Dim.Float_IO is

   Default_Fore : Field := 2;

   Default_Aft  : Field := Num_Dim_Float'Digits - 1;

   Default_Exp  : Field := 3;

   procedure Put

     (File    : File_Type;

      Item    : Num_Dim_Float;

      Fore    : Field  := Default_Fore;

      Aft     : Field  := Default_Aft;

      Exp     : Field  := Default_Exp;

      Symbols : String := "");

   procedure Put

     (Item    : Num_Dim_Float;

      Fore    : Field  := Default_Fore;

      Aft     : Field  := Default_Aft;

      Exp     : Field  := Default_Exp;

      Symbols : String := "");

   procedure Put

     (To      : out String;

      Item    : Num_Dim_Float;

      Aft     : Field  := Default_Aft;

      Exp     : Field  := Default_Exp;

      Symbols : String := "");

   pragma Inline (Put);

end System.Dim.Float_IO;