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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. All Put_Dim_Of routines
+-- output the dimension of Item in a symbolic manner.
+
+-- Parameter Symbol may be used in the following manner (all the examples are
+-- based on the MKS system of units defined in package System.Dim.Mks):
+
+-- type Mks_Type is new Long_Long_Float
+-- with
+-- Dimension_System => (
+-- (Unit_Name => Meter, Unit_Symbol => 'm', Dim_Symbol => 'L'),
+-- (Unit_Name => Kilogram, Unit_Symbol => "kg", Dim_Symbol => 'M'),
+-- (Unit_Name => Second, Unit_Symbol => 's', Dim_Symbol => 'T'),
+-- (Unit_Name => Ampere, Unit_Symbol => 'A', Dim_Symbol => 'I'),
+-- (Unit_Name => Kelvin, Unit_Symbol => 'K', Dim_Symbol => "Θ"),
+-- (Unit_Name => Mole, Unit_Symbol => "mol", Dim_Symbol => 'N'),
+-- (Unit_Name => Candela, Unit_Symbol => "cd", Dim_Symbol => 'J'));
+
+-- Case 1. A value is supplied for Symbol
+
+-- * Put : The string appears as a suffix of Item
+
+-- * Put_Dim_Of : The string appears alone
+
+-- Obj : Mks_Type := 2.6;
+-- Put (Obj, 1, 1, 0, " dimensionless");
+-- Put_Dim_Of (Obj, "dimensionless");
+
+-- The corresponding outputs are:
+-- $2.6 dimensionless
+-- $dimensionless
+
+-- Case 2. No value is supplied for Symbol and Item is dimensionless
+
+-- * Put : Item appears without a suffix
+
+-- * Put_Dim_Of : the output is []
+
+-- Obj : Mks_Type := 2.6;
+-- Put (Obj, 1, 1, 0);
+-- Put_Dim_Of (Obj);
+
+-- The corresponding outputs are:
+-- $2.6
+-- $[]
+
+-- Case 3. No value is supplied for Symbol and Item has a dimension
+
+-- * Put : If the type of Item is a dimensioned subtype whose
+-- symbol is not empty, then the symbol appears as a suffix.
+-- Otherwise, a new string is created and appears as a
+-- suffix of Item. This string results in the successive
+-- concatenations between each unit symbol raised by its
+-- corresponding dimension power from the dimensions of Item.
+
+-- * Put_Dim_Of : The output is a new string resulting in the successive
+-- concatenations between each dimension symbol raised by its
+-- corresponding dimension power from the dimensions of Item.
+
+-- subtype Length is Mks_Type
+-- with
+-- Dimension => ('m',
+-- Meter => 1,
+-- others => 0);
+
+-- Obj : Length := 2.3 * dm;
+-- Put (Obj, 1, 2, 0);
+-- Put_Dim_Of (Obj);
+
+-- The corresponding outputs are:
+-- $0.23 m
+-- $[L]
+
+-- subtype Random is Mks_Type
+-- with
+-- Dimension => (
+-- Meter => 3,
+-- Candela => -1,
+-- others => 0);
+
+-- Obj : Random := 5.0;
+-- Put (Obj);
+-- Put_Dim_Of (Obj);
+
+-- The corresponding outputs are:
+-- $5.0 m**3.cd**(-1)
+-- $[l**3.J**(-1)]
+
+-- Put (3.3 * km * dm * min, 5, 1, 0);
+-- Put_Dim_Of (3.3 * km * dm * min);
+
+-- The corresponding outputs are:
+-- $19800.0 m**2.s
+-- $[L**2.T]
+
+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;
+ Symbol : String := "");
+
+ procedure Put
+ (Item : Num_Dim_Float;
+ Fore : Field := Default_Fore;
+ Aft : Field := Default_Aft;
+ Exp : Field := Default_Exp;
+ Symbol : String := "");
+
+ procedure Put
+ (To : out String;
+ Item : Num_Dim_Float;
+ Aft : Field := Default_Aft;
+ Exp : Field := Default_Exp;
+ Symbol : String := "");
+
+ procedure Put_Dim_Of
+ (File : File_Type;
+ Item : Num_Dim_Float;
+ Symbol : String := "");
+
+ procedure Put_Dim_Of
+ (Item : Num_Dim_Float;
+ Symbol : String := "");
+
+ procedure Put_Dim_Of
+ (To : out String;
+ Item : Num_Dim_Float;
+ Symbol : String := "");
+
+ pragma Inline (Put);
+ pragma Inline (Put_Dim_Of);
+
+end System.Dim.Float_IO;