Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-valenu.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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68:561a7518be6b | 111:04ced10e8804 |
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1 ------------------------------------------------------------------------------ | |
2 -- -- | |
3 -- GNAT COMPILER COMPONENTS -- | |
4 -- -- | |
5 -- S Y S T E M . V A L _ E N U M -- | |
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.Unchecked_Conversion; | |
33 | |
34 with System.Val_Util; use System.Val_Util; | |
35 | |
36 package body System.Val_Enum is | |
37 | |
38 ------------------------- | |
39 -- Value_Enumeration_8 -- | |
40 ------------------------- | |
41 | |
42 function Value_Enumeration_8 | |
43 (Names : String; | |
44 Indexes : System.Address; | |
45 Num : Natural; | |
46 Str : String) | |
47 return Natural | |
48 is | |
49 F : Natural; | |
50 L : Natural; | |
51 S : String (Str'Range) := Str; | |
52 | |
53 type Natural_8 is range 0 .. 2 ** 7 - 1; | |
54 type Index_Table is array (Natural) of Natural_8; | |
55 type Index_Table_Ptr is access Index_Table; | |
56 | |
57 function To_Index_Table_Ptr is | |
58 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr); | |
59 | |
60 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes); | |
61 | |
62 begin | |
63 Normalize_String (S, F, L); | |
64 | |
65 for J in 0 .. Num loop | |
66 if Names | |
67 (Natural (IndexesT (J)) .. | |
68 Natural (IndexesT (J + 1)) - 1) = S (F .. L) | |
69 then | |
70 return J; | |
71 end if; | |
72 end loop; | |
73 | |
74 Bad_Value (Str); | |
75 end Value_Enumeration_8; | |
76 | |
77 -------------------------- | |
78 -- Value_Enumeration_16 -- | |
79 -------------------------- | |
80 | |
81 function Value_Enumeration_16 | |
82 (Names : String; | |
83 Indexes : System.Address; | |
84 Num : Natural; | |
85 Str : String) | |
86 return Natural | |
87 is | |
88 F : Natural; | |
89 L : Natural; | |
90 S : String (Str'Range) := Str; | |
91 | |
92 type Natural_16 is range 0 .. 2 ** 15 - 1; | |
93 type Index_Table is array (Natural) of Natural_16; | |
94 type Index_Table_Ptr is access Index_Table; | |
95 | |
96 function To_Index_Table_Ptr is | |
97 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr); | |
98 | |
99 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes); | |
100 | |
101 begin | |
102 Normalize_String (S, F, L); | |
103 | |
104 for J in 0 .. Num loop | |
105 if Names | |
106 (Natural (IndexesT (J)) .. | |
107 Natural (IndexesT (J + 1)) - 1) = S (F .. L) | |
108 then | |
109 return J; | |
110 end if; | |
111 end loop; | |
112 | |
113 Bad_Value (Str); | |
114 end Value_Enumeration_16; | |
115 | |
116 -------------------------- | |
117 -- Value_Enumeration_32 -- | |
118 -------------------------- | |
119 | |
120 function Value_Enumeration_32 | |
121 (Names : String; | |
122 Indexes : System.Address; | |
123 Num : Natural; | |
124 Str : String) | |
125 return Natural | |
126 is | |
127 F : Natural; | |
128 L : Natural; | |
129 S : String (Str'Range) := Str; | |
130 | |
131 type Natural_32 is range 0 .. 2 ** 31 - 1; | |
132 type Index_Table is array (Natural) of Natural_32; | |
133 type Index_Table_Ptr is access Index_Table; | |
134 | |
135 function To_Index_Table_Ptr is | |
136 new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr); | |
137 | |
138 IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes); | |
139 | |
140 begin | |
141 Normalize_String (S, F, L); | |
142 | |
143 for J in 0 .. Num loop | |
144 if Names | |
145 (Natural (IndexesT (J)) .. | |
146 Natural (IndexesT (J + 1)) - 1) = S (F .. L) | |
147 then | |
148 return J; | |
149 end if; | |
150 end loop; | |
151 | |
152 Bad_Value (Str); | |
153 end Value_Enumeration_32; | |
154 | |
155 end System.Val_Enum; |