summaryrefslogtreecommitdiff
path: root/gcc/ada/s-diinio.ads
blob: e5e8c444caddcb8de2576fb998db044c5fe8e918 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--                  S Y S T E M . D I M . I N T E G E R _ 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 integer dimensioned types. All
--  Put routines are modelled after those in package Ada.Text_IO.Integer_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 as defined in package System.Dim.Mks):

--    type Mks_Type is new Integer
--      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;
--      Put (Obj, Symbols => "dimensionless");
--      Put_Dim_Of (Obj, Symbols => "dimensionless");

--      The corresponding outputs are:
--      $2 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;
--      Put (Obj);
--      Put_Dim_Of (Obj);

--      The corresponding outputs are:
--      $2
--      $[]

--  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;
--      Put (Obj);
--      Put_Dim_Of (Obj);

--      The corresponding outputs are:
--      $2 m
--      $[L]

--      subtype Random is Mks_Type
--        with
--         Dimension => ("",
--           Meter =>   3,
--           Candela => 2,
--           others =>  0);

--      Obj : Random := 5;
--      Put (Obj);
--      Put_Dim_Of (Obj);

--      The corresponding outputs are:
--      $5 m**3.cd**2
--      $[L**3.J**2]

with Ada.Text_IO; use Ada.Text_IO;

generic
   type Num_Dim_Integer is range <>;

package System.Dim.Integer_IO is

   Default_Width : Field       := Num_Dim_Integer'Width;
   Default_Base  : Number_Base := 10;

   procedure Put
     (File   : File_Type;
      Item   : Num_Dim_Integer;
      Width  : Field       := Default_Width;
      Base   : Number_Base := Default_Base;
      Symbol : String      := "");

   procedure Put
     (Item   : Num_Dim_Integer;
      Width  : Field       := Default_Width;
      Base   : Number_Base := Default_Base;
      Symbol : String      := "");

   procedure Put
     (To     : out String;
      Item   : Num_Dim_Integer;
      Base   : Number_Base := Default_Base;
      Symbol : String      := "");

   procedure Put_Dim_Of
     (File   : File_Type;
      Item   : Num_Dim_Integer;
      Symbol : String := "");

   procedure Put_Dim_Of
     (Item   : Num_Dim_Integer;
      Symbol : String := "");

   procedure Put_Dim_Of
     (To     : out String;
      Item   : Num_Dim_Integer;
      Symbol : String := "");

   pragma Inline (Put);
   pragma Inline (Put_Dim_Of);

end System.Dim.Integer_IO;