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Diffstat (limited to 'gcc-4.7/gcc/ada/s-diflio.ads')
| -rw-r--r-- | gcc-4.7/gcc/ada/s-diflio.ads | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/ada/s-diflio.ads b/gcc-4.7/gcc/ada/s-diflio.ads new file mode 100644 index 000000000..e914af056 --- /dev/null +++ b/gcc-4.7/gcc/ada/s-diflio.ads @@ -0,0 +1,129 @@ +------------------------------------------------------------------------------ +-- -- +-- 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; |