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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
|
------------------------------------------------------------------------------
-- --
-- GNAT SYSTEM UTILITIES --
-- --
-- G N A T P S T A --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 1997-2001 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Program to print out listing of Standard package for the target (not
-- the host) with all constants appearing explicitly. This is not really
-- valid Ada, since one cannot really define new base types, but it is a
-- helpful listing from a documentation point of view.
-- Note that special care has been taken to use the host parameters for
-- integer and floating point sizes.
with Ada.Text_IO; use Ada.Text_IO;
with Ttypef; use Ttypef;
with Ttypes; use Ttypes;
with Types; use Types;
procedure GnatPsta is
procedure P (Item : String) renames Ada.Text_IO.Put_Line;
procedure P_Int_Range (Size : Pos; Put_First : Boolean := True);
-- Prints the range of an integer based on its Size. If Put_First is
-- False, then skip the first bound.
procedure P_Float_Range (Nb_Digits : Pos);
-- Prints the maximum range of a Float whose 'Digits is given by Nb_Digits
-------------------
-- P_Float_Range --
-------------------
procedure P_Float_Range (Nb_Digits : Pos) is
begin
-- This routine assumes only IEEE floats.
-- ??? Should the following be adapted for OpenVMS ?
case Nb_Digits is
when IEEES_Digits =>
P (" range " & IEEES_First'Universal_Literal_String & " .. " &
IEEES_Last'Universal_Literal_String & ";");
when IEEEL_Digits =>
P (" range " & IEEEL_First'Universal_Literal_String & " .. " &
IEEEL_Last'Universal_Literal_String & ";");
when IEEEX_Digits =>
P (" range " & IEEEX_First'Universal_Literal_String & " .. " &
IEEEX_Last'Universal_Literal_String & ";");
when others =>
P (";");
end case;
-- If one of the floating point types of the host computer has the
-- same digits as the target float we are processing, then print out
-- the float range using the host computer float type.
if Nb_Digits = Short_Float'Digits then
P (" -- " &
Short_Float'First'Img & " .. " & Short_Float'Last'Img);
elsif Nb_Digits = Float'Digits then
P (" -- " &
Float'First'Img & " .. " & Float'Last'Img);
elsif Nb_Digits = Long_Float'Digits then
P (" -- " &
Long_Float'First'Img & " .. " & Long_Float'Last'Img);
elsif Nb_Digits = Long_Long_Float'Digits then
P (" -- " &
Long_Long_Float'First'Img & " .. " & Long_Long_Float'Last'Img);
end if;
New_Line;
end P_Float_Range;
-----------------
-- P_Int_Range --
-----------------
procedure P_Int_Range (Size : Pos; Put_First : Boolean := True) is
begin
if Put_First then
Put (" is range -(2 **" & Pos'Image (Size - 1) & ")");
end if;
P (" .. +(2 **" & Pos'Image (Size - 1) & " - 1);");
end P_Int_Range;
-- Start of processing for GnatPsta
begin
P ("package Standard is");
P ("pragma Pure(Standard);");
New_Line;
P (" type Boolean is (False, True);");
New_Line;
-- Integer types
Put (" type Integer");
P_Int_Range (Standard_Integer_Size);
New_Line;
Put (" subtype Natural is Integer range 0");
P_Int_Range (Standard_Integer_Size, Put_First => False);
Put (" subtype Positive is Integer range 1");
P_Int_Range (Standard_Integer_Size, Put_First => False);
New_Line;
Put (" type Short_Short_Integer");
P_Int_Range (Standard_Short_Short_Integer_Size);
Put (" type Short_Integer ");
P_Int_Range (Standard_Short_Integer_Size);
Put (" type Long_Integer ");
P_Int_Range (Standard_Long_Integer_Size);
Put (" type Long_Long_Integer ");
P_Int_Range (Standard_Long_Long_Integer_Size);
New_Line;
-- Floating point types
P (" type Short_Float is digits"
& Standard_Short_Float_Digits'Img);
P_Float_Range (Standard_Short_Float_Digits);
P (" type Float is digits"
& Standard_Float_Digits'Img);
P_Float_Range (Standard_Float_Digits);
P (" type Long_Float is digits"
& Standard_Long_Float_Digits'Img);
P_Float_Range (Standard_Long_Float_Digits);
P (" type Long_Long_Float is digits"
& Standard_Long_Long_Float_Digits'Img);
P_Float_Range (Standard_Long_Long_Float_Digits);
P (" -- function ""*"" (Left : root_integer; Right : root_real)");
P (" -- return root_real;");
New_Line;
P (" -- function ""*"" (Left : root_real; Right : root_integer)");
P (" -- return root_real;");
New_Line;
P (" -- function ""/"" (Left : root_real; Right : root_integer)");
P (" -- return root_real;");
New_Line;
P (" -- function ""*"" (Left : universal_fixed; " &
"Right : universal_fixed)");
P (" -- return universal_fixed;");
New_Line;
P (" -- function ""/"" (Left : universal_fixed; " &
"Right : universal_fixed)");
P (" -- return universal_fixed;");
New_Line;
P (" -- The declaration of type Character is based on the standard");
P (" -- ISO 8859-1 character set.");
New_Line;
P (" -- There are no character literals corresponding to the positions");
P (" -- for control characters. They are indicated by lower case");
P (" -- identifiers in the following list.");
New_Line;
P (" -- Note: this type cannot be represented accurately in Ada");
New_Line;
P (" -- type Character is");
New_Line;
P (" -- (nul, soh, stx, etx, eot, enq, ack, bel,");
P (" -- bs, ht, lf, vt, ff, cr, so, si,");
New_Line;
P (" -- dle, dc1, dc2, dc3, dc4, nak, syn, etb,");
P (" -- can, em, sub, esc, fs, gs, rs, us,");
New_Line;
P (" -- ' ', '!', '""', '#', '$', '%', '&', ''',");
P (" -- '(', ')', '*', '+', ',', '-', '.', '/',");
New_Line;
P (" -- '0', '1', '2', '3', '4', '5', '6', '7',");
P (" -- '8', '9', ':', ';', '<', '=', '>', '?',");
New_Line;
P (" -- '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',");
P (" -- 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',");
New_Line;
P (" -- 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',");
P (" -- 'X', 'Y', 'Z', '[', '\', ']', '^', '_',");
New_Line;
P (" -- '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',");
P (" -- 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',");
New_Line;
P (" -- 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',");
P (" -- 'x', 'y', 'z', '{', '|', '}', '~', del,");
New_Line;
P (" -- reserved_128, reserved_129, bph, nbh,");
P (" -- reserved_132, nel, ssa, esa,");
New_Line;
P (" -- hts, htj, vts, pld, plu, ri, ss2, ss3,");
New_Line;
P (" -- dcs, pu1, pu2, sts, cch, mw, spa, epa,");
New_Line;
P (" -- sos, reserved_153, sci, csi,");
P (" -- st, osc, pm, apc,");
New_Line;
P (" -- ... );");
New_Line;
P (" -- The declaration of type Wide_Character is based " &
"on the standard");
P (" -- ISO 10646 BMP character set.");
New_Line;
P (" -- Note: this type cannot be represented accurately in Ada");
New_Line;
P (" -- The first 256 positions have the same contents as " &
"type Character");
New_Line;
P (" -- type Wide_Character is (nul, soh ... FFFE, FFFF);");
New_Line;
P (" package ASCII is");
New_Line;
P (" -- Control characters:");
New_Line;
P (" NUL : constant Character := Character'Val (16#00#);");
P (" SOH : constant Character := Character'Val (16#01#);");
P (" STX : constant Character := Character'Val (16#02#);");
P (" ETX : constant Character := Character'Val (16#03#);");
P (" EOT : constant Character := Character'Val (16#04#);");
P (" ENQ : constant Character := Character'Val (16#05#);");
P (" ACK : constant Character := Character'Val (16#06#);");
P (" BEL : constant Character := Character'Val (16#07#);");
P (" BS : constant Character := Character'Val (16#08#);");
P (" HT : constant Character := Character'Val (16#09#);");
P (" LF : constant Character := Character'Val (16#0A#);");
P (" VT : constant Character := Character'Val (16#0B#);");
P (" FF : constant Character := Character'Val (16#0C#);");
P (" CR : constant Character := Character'Val (16#0D#);");
P (" SO : constant Character := Character'Val (16#0E#);");
P (" SI : constant Character := Character'Val (16#0F#);");
P (" DLE : constant Character := Character'Val (16#10#);");
P (" DC1 : constant Character := Character'Val (16#11#);");
P (" DC2 : constant Character := Character'Val (16#12#);");
P (" DC3 : constant Character := Character'Val (16#13#);");
P (" DC4 : constant Character := Character'Val (16#14#);");
P (" NAK : constant Character := Character'Val (16#15#);");
P (" SYN : constant Character := Character'Val (16#16#);");
P (" ETB : constant Character := Character'Val (16#17#);");
P (" CAN : constant Character := Character'Val (16#18#);");
P (" EM : constant Character := Character'Val (16#19#);");
P (" SUB : constant Character := Character'Val (16#1A#);");
P (" ESC : constant Character := Character'Val (16#1B#);");
P (" FS : constant Character := Character'Val (16#1C#);");
P (" GS : constant Character := Character'Val (16#1D#);");
P (" RS : constant Character := Character'Val (16#1E#);");
P (" US : constant Character := Character'Val (16#1F#);");
P (" DEL : constant Character := Character'Val (16#7F#);");
New_Line;
P (" -- Other characters:");
New_Line;
P (" Exclam : constant Character := '!';");
P (" Quotation : constant Character := '""';");
P (" Sharp : constant Character := '#';");
P (" Dollar : constant Character := '$';");
P (" Percent : constant Character := '%';");
P (" Ampersand : constant Character := '&';");
P (" Colon : constant Character := ':';");
P (" Semicolon : constant Character := ';';");
P (" Query : constant Character := '?';");
P (" At_Sign : constant Character := '@';");
P (" L_Bracket : constant Character := '[';");
P (" Back_Slash : constant Character := '\';");
P (" R_Bracket : constant Character := ']';");
P (" Circumflex : constant Character := '^';");
P (" Underline : constant Character := '_';");
P (" Grave : constant Character := '`';");
P (" L_Brace : constant Character := '{';");
P (" Bar : constant Character := '|';");
P (" R_Brace : constant Character := '}';");
P (" Tilde : constant Character := '~';");
New_Line;
P (" -- Lower case letters:");
New_Line;
for C in Character range 'a' .. 'z' loop
P (" LC_" & Character'Val (Character'Pos (C) - 32) &
" : constant Character := '" & C & "';");
end loop;
New_Line;
P (" end ASCII;");
New_Line;
P (" type String is array (Positive range <>) of Character;");
P (" pragma Pack (String);");
New_Line;
P (" type Wide_String is array (Positive range <>) of Wide_Character;");
P (" pragma Pack (Wide_String);");
New_Line;
-- Here it's OK to use the Duration type of the host compiler since
-- the implementation of Duration in GNAT is target independent.
P (" type Duration is delta" &
Duration'Image (Duration'Delta));
P (" range -((2 **" & Natural'Image (Duration'Size - 1) &
" - 1) *" & Duration'Image (Duration'Delta) & ") ..");
P (" +((2 **" & Natural'Image (Duration'Size - 1) &
" - 1) *" & Duration'Image (Duration'Delta) & ");");
P (" for Duration'Small use" & Duration'Image (Duration'Small) & ";");
New_Line;
P (" Constraint_Error : exception;");
P (" Program_Error : exception;");
P (" Storage_Error : exception;");
P (" Tasking_Error : exception;");
New_Line;
P ("end Standard;");
end GnatPsta;
|
