1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--              I N T E R F A C E S . C . E X T E N S I O N S               --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2021, 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 contains additional C-related definitions, intended for use
33--  with either manually or automatically generated bindings to C libraries.
34
35with System;
36
37package Interfaces.C.Extensions is
38   pragma Pure;
39
40   --  Definitions for C "void" and "void *" types
41
42   subtype void     is System.Address;
43   subtype void_ptr is System.Address;
44
45   --  Definitions for C incomplete/unknown structs
46
47   subtype opaque_structure_def is System.Address;
48   type opaque_structure_def_ptr is access opaque_structure_def;
49   for opaque_structure_def_ptr'Storage_Size use 0;
50
51   --  Definitions for C++ incomplete/unknown classes
52
53   subtype incomplete_class_def is System.Address;
54   type incomplete_class_def_ptr is access incomplete_class_def;
55   for incomplete_class_def_ptr'Storage_Size use 0;
56
57   --  C bool
58
59   subtype bool is Interfaces.C.C_bool;
60
61   --  64-bit integer types
62
63   subtype long_long is Interfaces.C.long_long;
64   subtype unsigned_long_long is Interfaces.C.unsigned_long_long;
65
66   --  128-bit integer type available on 64-bit platforms:
67   --  typedef int signed_128 __attribute__ ((mode (TI)));
68
69   type Signed_128 is record
70      low, high : unsigned_long_long;
71   end record;
72   pragma Convention (C_Pass_By_Copy, Signed_128);
73   for Signed_128'Alignment use unsigned_long_long'Alignment * 2;
74
75   --  128-bit floating-point type available on x86:
76   --  typedef float float_128 __attribute__ ((mode (TF)));
77
78   type Float_128 is record
79      low, high : unsigned_long_long;
80   end record;
81   pragma Convention (C_Pass_By_Copy, Float_128);
82   for Float_128'Alignment use unsigned_long_long'Alignment * 2;
83
84   --  128-bit complex floating-point type available on x86:
85   --  typedef _Complex float cfloat_128 __attribute__ ((mode (TC)));
86
87   type CFloat_128 is record
88      re, im : Float_128;
89   end record;
90   pragma Convention (C_Pass_By_Copy, CFloat_128);
91
92   --  Types for bitfields
93
94   type Unsigned_1 is mod 2 ** 1;
95   for Unsigned_1'Size use 1;
96
97   type Unsigned_2 is mod 2 ** 2;
98   for Unsigned_2'Size use 2;
99
100   type Unsigned_3 is mod 2 ** 3;
101   for Unsigned_3'Size use 3;
102
103   type Unsigned_4 is mod 2 ** 4;
104   for Unsigned_4'Size use 4;
105
106   type Unsigned_5 is mod 2 ** 5;
107   for Unsigned_5'Size use 5;
108
109   type Unsigned_6 is mod 2 ** 6;
110   for Unsigned_6'Size use 6;
111
112   type Unsigned_7 is mod 2 ** 7;
113   for Unsigned_7'Size use 7;
114
115   type Unsigned_8 is mod 2 ** 8;
116   for Unsigned_8'Size use 8;
117
118   type Unsigned_9 is mod 2 ** 9;
119   for Unsigned_9'Size use 9;
120
121   type Unsigned_10 is mod 2 ** 10;
122   for Unsigned_10'Size use 10;
123
124   type Unsigned_11 is mod 2 ** 11;
125   for Unsigned_11'Size use 11;
126
127   type Unsigned_12 is mod 2 ** 12;
128   for Unsigned_12'Size use 12;
129
130   type Unsigned_13 is mod 2 ** 13;
131   for Unsigned_13'Size use 13;
132
133   type Unsigned_14 is mod 2 ** 14;
134   for Unsigned_14'Size use 14;
135
136   type Unsigned_15 is mod 2 ** 15;
137   for Unsigned_15'Size use 15;
138
139   type Unsigned_16 is mod 2 ** 16;
140   for Unsigned_16'Size use 16;
141
142   type Unsigned_17 is mod 2 ** 17;
143   for Unsigned_17'Size use 17;
144
145   type Unsigned_18 is mod 2 ** 18;
146   for Unsigned_18'Size use 18;
147
148   type Unsigned_19 is mod 2 ** 19;
149   for Unsigned_19'Size use 19;
150
151   type Unsigned_20 is mod 2 ** 20;
152   for Unsigned_20'Size use 20;
153
154   type Unsigned_21 is mod 2 ** 21;
155   for Unsigned_21'Size use 21;
156
157   type Unsigned_22 is mod 2 ** 22;
158   for Unsigned_22'Size use 22;
159
160   type Unsigned_23 is mod 2 ** 23;
161   for Unsigned_23'Size use 23;
162
163   type Unsigned_24 is mod 2 ** 24;
164   for Unsigned_24'Size use 24;
165
166   type Unsigned_25 is mod 2 ** 25;
167   for Unsigned_25'Size use 25;
168
169   type Unsigned_26 is mod 2 ** 26;
170   for Unsigned_26'Size use 26;
171
172   type Unsigned_27 is mod 2 ** 27;
173   for Unsigned_27'Size use 27;
174
175   type Unsigned_28 is mod 2 ** 28;
176   for Unsigned_28'Size use 28;
177
178   type Unsigned_29 is mod 2 ** 29;
179   for Unsigned_29'Size use 29;
180
181   type Unsigned_30 is mod 2 ** 30;
182   for Unsigned_30'Size use 30;
183
184   type Unsigned_31 is mod 2 ** 31;
185   for Unsigned_31'Size use 31;
186
187   type Unsigned_32 is mod 2 ** 32;
188   for Unsigned_32'Size use 32;
189
190   type Unsigned_33 is mod 2 ** 33;
191   for Unsigned_33'Size use 33;
192
193   type Unsigned_34 is mod 2 ** 34;
194   for Unsigned_34'Size use 34;
195
196   type Unsigned_35 is mod 2 ** 35;
197   for Unsigned_35'Size use 35;
198
199   type Unsigned_36 is mod 2 ** 36;
200   for Unsigned_36'Size use 36;
201
202   type Unsigned_37 is mod 2 ** 37;
203   for Unsigned_37'Size use 37;
204
205   type Unsigned_38 is mod 2 ** 38;
206   for Unsigned_38'Size use 38;
207
208   type Unsigned_39 is mod 2 ** 39;
209   for Unsigned_39'Size use 39;
210
211   type Unsigned_40 is mod 2 ** 40;
212   for Unsigned_40'Size use 40;
213
214   type Unsigned_41 is mod 2 ** 41;
215   for Unsigned_41'Size use 41;
216
217   type Unsigned_42 is mod 2 ** 42;
218   for Unsigned_42'Size use 42;
219
220   type Unsigned_43 is mod 2 ** 43;
221   for Unsigned_43'Size use 43;
222
223   type Unsigned_44 is mod 2 ** 44;
224   for Unsigned_44'Size use 44;
225
226   type Unsigned_45 is mod 2 ** 45;
227   for Unsigned_45'Size use 45;
228
229   type Unsigned_46 is mod 2 ** 46;
230   for Unsigned_46'Size use 46;
231
232   type Unsigned_47 is mod 2 ** 47;
233   for Unsigned_47'Size use 47;
234
235   type Unsigned_48 is mod 2 ** 48;
236   for Unsigned_48'Size use 48;
237
238   type Unsigned_49 is mod 2 ** 49;
239   for Unsigned_49'Size use 49;
240
241   type Unsigned_50 is mod 2 ** 50;
242   for Unsigned_50'Size use 50;
243
244   type Unsigned_51 is mod 2 ** 51;
245   for Unsigned_51'Size use 51;
246
247   type Unsigned_52 is mod 2 ** 52;
248   for Unsigned_52'Size use 52;
249
250   type Unsigned_53 is mod 2 ** 53;
251   for Unsigned_53'Size use 53;
252
253   type Unsigned_54 is mod 2 ** 54;
254   for Unsigned_54'Size use 54;
255
256   type Unsigned_55 is mod 2 ** 55;
257   for Unsigned_55'Size use 55;
258
259   type Unsigned_56 is mod 2 ** 56;
260   for Unsigned_56'Size use 56;
261
262   type Unsigned_57 is mod 2 ** 57;
263   for Unsigned_57'Size use 57;
264
265   type Unsigned_58 is mod 2 ** 58;
266   for Unsigned_58'Size use 58;
267
268   type Unsigned_59 is mod 2 ** 59;
269   for Unsigned_59'Size use 59;
270
271   type Unsigned_60 is mod 2 ** 60;
272   for Unsigned_60'Size use 60;
273
274   type Unsigned_61 is mod 2 ** 61;
275   for Unsigned_61'Size use 61;
276
277   type Unsigned_62 is mod 2 ** 62;
278   for Unsigned_62'Size use 62;
279
280   type Unsigned_63 is mod 2 ** 63;
281   for Unsigned_63'Size use 63;
282
283   type Unsigned_64 is mod 2 ** 64;
284   for Unsigned_64'Size use 64;
285
286   type Signed_2 is range -2 ** 1 .. 2 ** 1 - 1;
287   for Signed_2'Size use 2;
288
289   type Signed_3 is range -2 ** 2 .. 2 ** 2 - 1;
290   for Signed_3'Size use 3;
291
292   type Signed_4 is range -2 ** 3 .. 2 ** 3 - 1;
293   for Signed_4'Size use 4;
294
295   type Signed_5 is range -2 ** 4 .. 2 ** 4 - 1;
296   for Signed_5'Size use 5;
297
298   type Signed_6 is range -2 ** 5 .. 2 ** 5 - 1;
299   for Signed_6'Size use 6;
300
301   type Signed_7 is range -2 ** 6 .. 2 ** 6 - 1;
302   for Signed_7'Size use 7;
303
304   type Signed_8 is range -2 ** 7 .. 2 ** 7 - 1;
305   for Signed_8'Size use 8;
306
307   type Signed_9 is range -2 ** 8 .. 2 ** 8 - 1;
308   for Signed_9'Size use 9;
309
310   type Signed_10 is range -2 ** 9 .. 2 ** 9 - 1;
311   for Signed_10'Size use 10;
312
313   type Signed_11 is range -2 ** 10 .. 2 ** 10 - 1;
314   for Signed_11'Size use 11;
315
316   type Signed_12 is range -2 ** 11 .. 2 ** 11 - 1;
317   for Signed_12'Size use 12;
318
319   type Signed_13 is range -2 ** 12 .. 2 ** 12 - 1;
320   for Signed_13'Size use 13;
321
322   type Signed_14 is range -2 ** 13 .. 2 ** 13 - 1;
323   for Signed_14'Size use 14;
324
325   type Signed_15 is range -2 ** 14 .. 2 ** 14 - 1;
326   for Signed_15'Size use 15;
327
328   type Signed_16 is range -2 ** 15 .. 2 ** 15 - 1;
329   for Signed_16'Size use 16;
330
331   type Signed_17 is range -2 ** 16 .. 2 ** 16 - 1;
332   for Signed_17'Size use 17;
333
334   type Signed_18 is range -2 ** 17 .. 2 ** 17 - 1;
335   for Signed_18'Size use 18;
336
337   type Signed_19 is range -2 ** 18 .. 2 ** 18 - 1;
338   for Signed_19'Size use 19;
339
340   type Signed_20 is range -2 ** 19 .. 2 ** 19 - 1;
341   for Signed_20'Size use 20;
342
343   type Signed_21 is range -2 ** 20 .. 2 ** 20 - 1;
344   for Signed_21'Size use 21;
345
346   type Signed_22 is range -2 ** 21 .. 2 ** 21 - 1;
347   for Signed_22'Size use 22;
348
349   type Signed_23 is range -2 ** 22 .. 2 ** 22 - 1;
350   for Signed_23'Size use 23;
351
352   type Signed_24 is range -2 ** 23 .. 2 ** 23 - 1;
353   for Signed_24'Size use 24;
354
355   type Signed_25 is range -2 ** 24 .. 2 ** 24 - 1;
356   for Signed_25'Size use 25;
357
358   type Signed_26 is range -2 ** 25 .. 2 ** 25 - 1;
359   for Signed_26'Size use 26;
360
361   type Signed_27 is range -2 ** 26 .. 2 ** 26 - 1;
362   for Signed_27'Size use 27;
363
364   type Signed_28 is range -2 ** 27 .. 2 ** 27 - 1;
365   for Signed_28'Size use 28;
366
367   type Signed_29 is range -2 ** 28 .. 2 ** 28 - 1;
368   for Signed_29'Size use 29;
369
370   type Signed_30 is range -2 ** 29 .. 2 ** 29 - 1;
371   for Signed_30'Size use 30;
372
373   type Signed_31 is range -2 ** 30 .. 2 ** 30 - 1;
374   for Signed_31'Size use 31;
375
376   type Signed_32 is range -2 ** 31 .. 2 ** 31 - 1;
377   for Signed_32'Size use 32;
378
379   type Signed_33 is range -2 ** 32 .. 2 ** 32 - 1;
380   for Signed_33'Size use 33;
381
382   type Signed_34 is range -2 ** 33 .. 2 ** 33 - 1;
383   for Signed_34'Size use 34;
384
385   type Signed_35 is range -2 ** 34 .. 2 ** 34 - 1;
386   for Signed_35'Size use 35;
387
388   type Signed_36 is range -2 ** 35 .. 2 ** 35 - 1;
389   for Signed_36'Size use 36;
390
391   type Signed_37 is range -2 ** 36 .. 2 ** 36 - 1;
392   for Signed_37'Size use 37;
393
394   type Signed_38 is range -2 ** 37 .. 2 ** 37 - 1;
395   for Signed_38'Size use 38;
396
397   type Signed_39 is range -2 ** 38 .. 2 ** 38 - 1;
398   for Signed_39'Size use 39;
399
400   type Signed_40 is range -2 ** 39 .. 2 ** 39 - 1;
401   for Signed_40'Size use 40;
402
403   type Signed_41 is range -2 ** 40 .. 2 ** 40 - 1;
404   for Signed_41'Size use 41;
405
406   type Signed_42 is range -2 ** 41 .. 2 ** 41 - 1;
407   for Signed_42'Size use 42;
408
409   type Signed_43 is range -2 ** 42 .. 2 ** 42 - 1;
410   for Signed_43'Size use 43;
411
412   type Signed_44 is range -2 ** 43 .. 2 ** 43 - 1;
413   for Signed_44'Size use 44;
414
415   type Signed_45 is range -2 ** 44 .. 2 ** 44 - 1;
416   for Signed_45'Size use 45;
417
418   type Signed_46 is range -2 ** 45 .. 2 ** 45 - 1;
419   for Signed_46'Size use 46;
420
421   type Signed_47 is range -2 ** 46 .. 2 ** 46 - 1;
422   for Signed_47'Size use 47;
423
424   type Signed_48 is range -2 ** 47 .. 2 ** 47 - 1;
425   for Signed_48'Size use 48;
426
427   type Signed_49 is range -2 ** 48 .. 2 ** 48 - 1;
428   for Signed_49'Size use 49;
429
430   type Signed_50 is range -2 ** 49 .. 2 ** 49 - 1;
431   for Signed_50'Size use 50;
432
433   type Signed_51 is range -2 ** 50 .. 2 ** 50 - 1;
434   for Signed_51'Size use 51;
435
436   type Signed_52 is range -2 ** 51 .. 2 ** 51 - 1;
437   for Signed_52'Size use 52;
438
439   type Signed_53 is range -2 ** 52 .. 2 ** 52 - 1;
440   for Signed_53'Size use 53;
441
442   type Signed_54 is range -2 ** 53 .. 2 ** 53 - 1;
443   for Signed_54'Size use 54;
444
445   type Signed_55 is range -2 ** 54 .. 2 ** 54 - 1;
446   for Signed_55'Size use 55;
447
448   type Signed_56 is range -2 ** 55 .. 2 ** 55 - 1;
449   for Signed_56'Size use 56;
450
451   type Signed_57 is range -2 ** 56 .. 2 ** 56 - 1;
452   for Signed_57'Size use 57;
453
454   type Signed_58 is range -2 ** 57 .. 2 ** 57 - 1;
455   for Signed_58'Size use 58;
456
457   type Signed_59 is range -2 ** 58 .. 2 ** 58 - 1;
458   for Signed_59'Size use 59;
459
460   type Signed_60 is range -2 ** 59 .. 2 ** 59 - 1;
461   for Signed_60'Size use 60;
462
463   type Signed_61 is range -2 ** 60 .. 2 ** 60 - 1;
464   for Signed_61'Size use 61;
465
466   type Signed_62 is range -2 ** 61 .. 2 ** 61 - 1;
467   for Signed_62'Size use 62;
468
469   type Signed_63 is range -2 ** 62 .. 2 ** 62 - 1;
470   for Signed_63'Size use 63;
471
472   type Signed_64 is range -2 ** 63 .. 2 ** 63 - 1;
473   for Signed_64'Size use 64;
474
475end Interfaces.C.Extensions;
476