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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;
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