gcc/ada/libgnat/i-cexten.ads

   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) 1992-2024, 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
  35 with System;
  36
  37 package 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
 475 end Interfaces.C.Extensions;