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comparison gcc/ada/libgnat/s-diinio.ads @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . D I M . I N T E G E R _ I O --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 2011-2017, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This package provides output routines for integer dimensioned types. All
33 -- Put routines are modeled after those in package Ada.Text_IO.Integer_IO
34 -- with the addition of an extra default parameter. All Put_Dim_Of routines
35 -- output the dimension of Item in a symbolic manner.
36
37 -- Parameter Symbol may be used in the following manner (all the examples are
38 -- based on the MKS system of units as defined in package System.Dim.Mks):
39
40 -- type Mks_Type is new Integer
41 -- with
42 -- Dimension_System => (
43 -- (Unit_Name => Meter, Unit_Symbol => 'm', Dim_Symbol => 'L'),
44 -- (Unit_Name => Kilogram, Unit_Symbol => "kg", Dim_Symbol => 'M'),
45 -- (Unit_Name => Second, Unit_Symbol => 's', Dim_Symbol => 'T'),
46 -- (Unit_Name => Ampere, Unit_Symbol => 'A', Dim_Symbol => 'I'),
47 -- (Unit_Name => Kelvin, Unit_Symbol => 'K', Dim_Symbol => "Θ"),
48 -- (Unit_Name => Mole, Unit_Symbol => "mol", Dim_Symbol => 'N'),
49 -- (Unit_Name => Candela, Unit_Symbol => "cd", Dim_Symbol => 'J'));
50
51 -- Case 1. A value is supplied for Symbol
52
53 -- * Put : The string appears as a suffix of Item
54
55 -- * Put_Dim_Of : The string appears alone
56
57 -- Obj : Mks_Type := 2;
58 -- Put (Obj, Symbols => "dimensionless");
59 -- Put_Dim_Of (Obj, Symbols => "dimensionless");
60
61 -- The corresponding outputs are:
62 -- $2 dimensionless
63 -- $dimensionless
64
65 -- Case 2. No value is supplied for Symbol and Item is dimensionless
66
67 -- * Put : Item appears without a suffix
68
69 -- * Put_Dim_Of : the output is []
70
71 -- Obj : Mks_Type := 2;
72 -- Put (Obj);
73 -- Put_Dim_Of (Obj);
74
75 -- The corresponding outputs are:
76 -- $2
77 -- $[]
78
79 -- Case 3. No value is supplied for Symbol and Item has a dimension
80
81 -- * Put : If the type of Item is a dimensioned subtype whose
82 -- symbol is not empty, then the symbol appears as a suffix.
83 -- Otherwise, a new string is created and appears as a
84 -- suffix of Item. This string results in the successive
85 -- concatenations between each unit symbol raised by its
86 -- corresponding dimension power from the dimensions of Item.
87
88 -- * Put_Dim_Of : The output is a new string resulting in the successive
89 -- concatenations between each dimension symbol raised by its
90 -- corresponding dimension power from the dimensions of Item.
91
92 -- subtype Length is Mks_Type
93 -- with
94 -- Dimension => ('m',
95 -- Meter => 1,
96 -- others => 0);
97
98 -- Obj : Length := 2;
99 -- Put (Obj);
100 -- Put_Dim_Of (Obj);
101
102 -- The corresponding outputs are:
103 -- $2 m
104 -- $[L]
105
106 -- subtype Random is Mks_Type
107 -- with
108 -- Dimension => ("",
109 -- Meter => 3,
110 -- Candela => 2,
111 -- others => 0);
112
113 -- Obj : Random := 5;
114 -- Put (Obj);
115 -- Put_Dim_Of (Obj);
116
117 -- The corresponding outputs are:
118 -- $5 m**3.cd**2
119 -- $[L**3.J**2]
120
121 with Ada.Text_IO; use Ada.Text_IO;
122
123 generic
124 type Num_Dim_Integer is range <>;
125
126 package System.Dim.Integer_IO is
127
128 Default_Width : Field := Num_Dim_Integer'Width;
129 Default_Base : Number_Base := 10;
130
131 procedure Put
132 (File : File_Type;
133 Item : Num_Dim_Integer;
134 Width : Field := Default_Width;
135 Base : Number_Base := Default_Base;
136 Symbol : String := "");
137
138 procedure Put
139 (Item : Num_Dim_Integer;
140 Width : Field := Default_Width;
141 Base : Number_Base := Default_Base;
142 Symbol : String := "");
143
144 procedure Put
145 (To : out String;
146 Item : Num_Dim_Integer;
147 Base : Number_Base := Default_Base;
148 Symbol : String := "");
149
150 procedure Put_Dim_Of
151 (File : File_Type;
152 Item : Num_Dim_Integer;
153 Symbol : String := "");
154
155 procedure Put_Dim_Of
156 (Item : Num_Dim_Integer;
157 Symbol : String := "");
158
159 procedure Put_Dim_Of
160 (To : out String;
161 Item : Num_Dim_Integer;
162 Symbol : String := "");
163
164 pragma Inline (Put);
165 pragma Inline (Put_Dim_Of);
166
167 end System.Dim.Integer_IO;