Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/a-tienio.adb @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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1 ------------------------------------------------------------------------------ | |
2 -- -- | |
3 -- GNAT RUN-TIME COMPONENTS -- | |
4 -- -- | |
5 -- A D A . T E X T _ I O . E N U M E R A T I O N _ I O -- | |
6 -- -- | |
7 -- B o d y -- | |
8 -- -- | |
9 -- Copyright (C) 1992-2017, 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 with Ada.Text_IO.Enumeration_Aux; | |
33 | |
34 package body Ada.Text_IO.Enumeration_IO is | |
35 | |
36 package Aux renames Ada.Text_IO.Enumeration_Aux; | |
37 | |
38 --------- | |
39 -- Get -- | |
40 --------- | |
41 | |
42 procedure Get (File : File_Type; Item : out Enum) is | |
43 Buf : String (1 .. Enum'Width + 1); | |
44 Buflen : Natural; | |
45 | |
46 begin | |
47 Aux.Get_Enum_Lit (File, Buf, Buflen); | |
48 | |
49 declare | |
50 Buf_Str : String renames Buf (1 .. Buflen); | |
51 pragma Unsuppress (Range_Check); | |
52 begin | |
53 Item := Enum'Value (Buf_Str); | |
54 end; | |
55 | |
56 exception | |
57 when Constraint_Error => raise Data_Error; | |
58 end Get; | |
59 | |
60 procedure Get (Item : out Enum) is | |
61 pragma Unsuppress (Range_Check); | |
62 begin | |
63 Get (Current_In, Item); | |
64 end Get; | |
65 | |
66 procedure Get | |
67 (From : String; | |
68 Item : out Enum; | |
69 Last : out Positive) | |
70 is | |
71 Start : Natural; | |
72 | |
73 begin | |
74 Aux.Scan_Enum_Lit (From, Start, Last); | |
75 | |
76 declare | |
77 From_Str : String renames From (Start .. Last); | |
78 pragma Unsuppress (Range_Check); | |
79 begin | |
80 Item := Enum'Value (From_Str); | |
81 end; | |
82 | |
83 exception | |
84 when Constraint_Error => raise Data_Error; | |
85 end Get; | |
86 | |
87 --------- | |
88 -- Put -- | |
89 --------- | |
90 | |
91 procedure Put | |
92 (File : File_Type; | |
93 Item : Enum; | |
94 Width : Field := Default_Width; | |
95 Set : Type_Set := Default_Setting) | |
96 is | |
97 begin | |
98 -- Ensure that Item is valid before attempting to retrieve the Image, to | |
99 -- prevent the possibility of out-of-bounds addressing of index or image | |
100 -- tables. Units in the run-time library are normally compiled with | |
101 -- checks suppressed, which includes instantiated generics. | |
102 | |
103 if not Item'Valid then | |
104 raise Constraint_Error with "invalid enumeration value"; | |
105 end if; | |
106 | |
107 Aux.Put (File, Enum'Image (Item), Width, Set); | |
108 end Put; | |
109 | |
110 procedure Put | |
111 (Item : Enum; | |
112 Width : Field := Default_Width; | |
113 Set : Type_Set := Default_Setting) | |
114 is | |
115 begin | |
116 Put (Current_Out, Item, Width, Set); | |
117 end Put; | |
118 | |
119 procedure Put | |
120 (To : out String; | |
121 Item : Enum; | |
122 Set : Type_Set := Default_Setting) | |
123 is | |
124 begin | |
125 -- Ensure that Item is valid before attempting to retrieve the Image, to | |
126 -- prevent the possibility of out-of-bounds addressing of index or image | |
127 -- tables. Units in the run-time library are normally compiled with | |
128 -- checks suppressed, which includes instantiated generics. | |
129 | |
130 if not Item'Valid then | |
131 raise Constraint_Error with "invalid enumeration value"; | |
132 end if; | |
133 | |
134 Aux.Puts (To, Enum'Image (Item), Set); | |
135 end Put; | |
136 | |
137 end Ada.Text_IO.Enumeration_IO; |