tests/test-stdint.c

   1 /* Test of <stdint.h> substitute.
   2    Copyright (C) 2006-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2006.  */
  18
  19 #include <config.h>
  20
  21 /* Whether to enable pedantic checks. */
  22 #define DO_PEDANTIC 0
  23
  24 #include <stdint.h>
  25
  26 #include "verify.h"
  27 #include "intprops.h"
  28
  29 #if ((__GNUC__ >= 2) || (__clang_major__ >= 4)) && DO_PEDANTIC
  30 # define verify_same_types(expr1,expr2)  \
  31     extern void _verify_func(__LINE__) (__typeof__ (expr1) *); \
  32     extern void _verify_func(__LINE__) (__typeof__ (expr2) *);
  33 # define _verify_func(line) _verify_func2(line)
  34 # define _verify_func2(line) verify_func_ ## line
  35 #else
  36 # define verify_same_types(expr1,expr2) extern void verify_func (int)
  37 #endif
  38
  39 /* 7.18.1.1. Exact-width integer types */
  40 /* 7.18.2.1. Limits of exact-width integer types */
  41
  42 int8_t a1[3] = { INT8_C (17), INT8_MIN, INT8_MAX };
  43 verify (TYPE_MINIMUM (int8_t) == INT8_MIN);
  44 verify (TYPE_MAXIMUM (int8_t) == INT8_MAX);
  45 verify_same_types (INT8_MIN, (int8_t) 0 + 0);
  46 verify_same_types (INT8_MAX, (int8_t) 0 + 0);
  47
  48 int16_t a2[3] = { INT16_C (17), INT16_MIN, INT16_MAX };
  49 verify (TYPE_MINIMUM (int16_t) == INT16_MIN);
  50 verify (TYPE_MAXIMUM (int16_t) == INT16_MAX);
  51 verify_same_types (INT16_MIN, (int16_t) 0 + 0);
  52 verify_same_types (INT16_MAX, (int16_t) 0 + 0);
  53
  54 int32_t a3[3] = { INT32_C (17), INT32_MIN, INT32_MAX };
  55 verify (TYPE_MINIMUM (int32_t) == INT32_MIN);
  56 verify (TYPE_MAXIMUM (int32_t) == INT32_MAX);
  57 verify_same_types (INT32_MIN, (int32_t) 0 + 0);
  58 verify_same_types (INT32_MAX, (int32_t) 0 + 0);
  59
  60 #ifdef INT64_MAX
  61 int64_t a4[3] = { INT64_C (17), INT64_MIN, INT64_MAX };
  62 verify (TYPE_MINIMUM (int64_t) == INT64_MIN);
  63 verify (TYPE_MAXIMUM (int64_t) == INT64_MAX);
  64 verify_same_types (INT64_MIN, (int64_t) 0 + 0);
  65 verify_same_types (INT64_MAX, (int64_t) 0 + 0);
  66 #endif
  67
  68 uint8_t b1[2] = { UINT8_C (17), UINT8_MAX };
  69 verify (TYPE_MAXIMUM (uint8_t) == UINT8_MAX);
  70 verify_same_types (UINT8_MAX, (uint8_t) 0 + 0);
  71
  72 uint16_t b2[2] = { UINT16_C (17), UINT16_MAX };
  73 verify (TYPE_MAXIMUM (uint16_t) == UINT16_MAX);
  74 verify_same_types (UINT16_MAX, (uint16_t) 0 + 0);
  75
  76 uint32_t b3[2] = { UINT32_C (17), UINT32_MAX };
  77 verify (TYPE_MAXIMUM (uint32_t) == UINT32_MAX);
  78 verify_same_types (UINT32_MAX, (uint32_t) 0 + 0);
  79
  80 #ifdef UINT64_MAX
  81 uint64_t b4[2] = { UINT64_C (17), UINT64_MAX };
  82 verify (TYPE_MAXIMUM (uint64_t) == UINT64_MAX);
  83 verify_same_types (UINT64_MAX, (uint64_t) 0 + 0);
  84 #endif
  85
  86 #if INT8_MIN && INT8_MAX && INT16_MIN && INT16_MAX && INT32_MIN && INT32_MAX
  87 /* ok */
  88 #else
  89 err or;
  90 #endif
  91
  92 #if UINT8_MAX && UINT16_MAX && UINT32_MAX
  93 /* ok */
  94 #else
  95 err or;
  96 #endif
  97
  98 /* 7.18.1.2. Minimum-width integer types */
  99 /* 7.18.2.2. Limits of minimum-width integer types */
 100
 101 int_least8_t c1[3] = { 17, INT_LEAST8_MIN, INT_LEAST8_MAX };
 102 verify (TYPE_MINIMUM (int_least8_t) == INT_LEAST8_MIN);
 103 verify (TYPE_MAXIMUM (int_least8_t) == INT_LEAST8_MAX);
 104 verify_same_types (INT_LEAST8_MIN, (int_least8_t) 0 + 0);
 105 verify_same_types (INT_LEAST8_MAX, (int_least8_t) 0 + 0);
 106
 107 int_least16_t c2[3] = { 17, INT_LEAST16_MIN, INT_LEAST16_MAX };
 108 verify (TYPE_MINIMUM (int_least16_t) == INT_LEAST16_MIN);
 109 verify (TYPE_MAXIMUM (int_least16_t) == INT_LEAST16_MAX);
 110 verify_same_types (INT_LEAST16_MIN, (int_least16_t) 0 + 0);
 111 verify_same_types (INT_LEAST16_MAX, (int_least16_t) 0 + 0);
 112
 113 int_least32_t c3[3] = { 17, INT_LEAST32_MIN, INT_LEAST32_MAX };
 114 verify (TYPE_MINIMUM (int_least32_t) == INT_LEAST32_MIN);
 115 verify (TYPE_MAXIMUM (int_least32_t) == INT_LEAST32_MAX);
 116 verify_same_types (INT_LEAST32_MIN, (int_least32_t) 0 + 0);
 117 verify_same_types (INT_LEAST32_MAX, (int_least32_t) 0 + 0);
 118
 119 #ifdef INT_LEAST64_MAX
 120 int_least64_t c4[3] = { 17, INT_LEAST64_MIN, INT_LEAST64_MAX };
 121 verify (TYPE_MINIMUM (int_least64_t) == INT_LEAST64_MIN);
 122 verify (TYPE_MAXIMUM (int_least64_t) == INT_LEAST64_MAX);
 123 verify_same_types (INT_LEAST64_MIN, (int_least64_t) 0 + 0);
 124 verify_same_types (INT_LEAST64_MAX, (int_least64_t) 0 + 0);
 125 #endif
 126
 127 uint_least8_t d1[2] = { 17, UINT_LEAST8_MAX };
 128 verify (TYPE_MAXIMUM (uint_least8_t) == UINT_LEAST8_MAX);
 129 verify_same_types (UINT_LEAST8_MAX, (uint_least8_t) 0 + 0);
 130
 131 uint_least16_t d2[2] = { 17, UINT_LEAST16_MAX };
 132 verify (TYPE_MAXIMUM (uint_least16_t) == UINT_LEAST16_MAX);
 133 verify_same_types (UINT_LEAST16_MAX, (uint_least16_t) 0 + 0);
 134
 135 uint_least32_t d3[2] = { 17, UINT_LEAST32_MAX };
 136 verify (TYPE_MAXIMUM (uint_least32_t) == UINT_LEAST32_MAX);
 137 verify_same_types (UINT_LEAST32_MAX, (uint_least32_t) 0 + 0);
 138
 139 #ifdef UINT_LEAST64_MAX
 140 uint_least64_t d4[2] = { 17, UINT_LEAST64_MAX };
 141 verify (TYPE_MAXIMUM (uint_least64_t) == UINT_LEAST64_MAX);
 142 verify_same_types (UINT_LEAST64_MAX, (uint_least64_t) 0 + 0);
 143 #endif
 144
 145 #if INT_LEAST8_MIN && INT_LEAST8_MAX && INT_LEAST16_MIN && INT_LEAST16_MAX && INT_LEAST32_MIN && INT_LEAST32_MAX
 146 /* ok */
 147 #else
 148 err or;
 149 #endif
 150
 151 #if UINT_LEAST8_MAX && UINT_LEAST16_MAX && UINT_LEAST32_MAX
 152 /* ok */
 153 #else
 154 err or;
 155 #endif
 156
 157 /* 7.18.1.3. Fastest minimum-width integer types */
 158 /* 7.18.2.3. Limits of fastest minimum-width integer types */
 159
 160 int_fast8_t e1[3] = { 17, INT_FAST8_MIN, INT_FAST8_MAX };
 161 verify (TYPE_MINIMUM (int_fast8_t) == INT_FAST8_MIN);
 162 verify (TYPE_MAXIMUM (int_fast8_t) == INT_FAST8_MAX);
 163 verify_same_types (INT_FAST8_MIN, (int_fast8_t) 0 + 0);
 164 verify_same_types (INT_FAST8_MAX, (int_fast8_t) 0 + 0);
 165
 166 int_fast16_t e2[3] = { 17, INT_FAST16_MIN, INT_FAST16_MAX };
 167 verify (TYPE_MINIMUM (int_fast16_t) == INT_FAST16_MIN);
 168 verify (TYPE_MAXIMUM (int_fast16_t) == INT_FAST16_MAX);
 169 verify_same_types (INT_FAST16_MIN, (int_fast16_t) 0 + 0);
 170 verify_same_types (INT_FAST16_MAX, (int_fast16_t) 0 + 0);
 171
 172 int_fast32_t e3[3] = { 17, INT_FAST32_MIN, INT_FAST32_MAX };
 173 verify (TYPE_MINIMUM (int_fast32_t) == INT_FAST32_MIN);
 174 verify (TYPE_MAXIMUM (int_fast32_t) == INT_FAST32_MAX);
 175 verify_same_types (INT_FAST32_MIN, (int_fast32_t) 0 + 0);
 176 verify_same_types (INT_FAST32_MAX, (int_fast32_t) 0 + 0);
 177
 178 #ifdef INT_FAST64_MAX
 179 int_fast64_t e4[3] = { 17, INT_FAST64_MIN, INT_FAST64_MAX };
 180 verify (TYPE_MINIMUM (int_fast64_t) == INT_FAST64_MIN);
 181 verify (TYPE_MAXIMUM (int_fast64_t) == INT_FAST64_MAX);
 182 verify_same_types (INT_FAST64_MIN, (int_fast64_t) 0 + 0);
 183 verify_same_types (INT_FAST64_MAX, (int_fast64_t) 0 + 0);
 184 #endif
 185
 186 uint_fast8_t f1[2] = { 17, UINT_FAST8_MAX };
 187 verify (TYPE_MAXIMUM (uint_fast8_t) == UINT_FAST8_MAX);
 188 verify_same_types (UINT_FAST8_MAX, (uint_fast8_t) 0 + 0);
 189
 190 uint_fast16_t f2[2] = { 17, UINT_FAST16_MAX };
 191 verify (TYPE_MAXIMUM (uint_fast16_t) == UINT_FAST16_MAX);
 192 verify_same_types (UINT_FAST16_MAX, (uint_fast16_t) 0 + 0);
 193
 194 uint_fast32_t f3[2] = { 17, UINT_FAST32_MAX };
 195 verify (TYPE_MAXIMUM (uint_fast32_t) == UINT_FAST32_MAX);
 196 verify_same_types (UINT_FAST32_MAX, (uint_fast32_t) 0 + 0);
 197
 198 #ifdef UINT_FAST64_MAX
 199 uint_fast64_t f4[2] = { 17, UINT_FAST64_MAX };
 200 verify (TYPE_MAXIMUM (uint_fast64_t) == UINT_FAST64_MAX);
 201 verify_same_types (UINT_FAST64_MAX, (uint_fast64_t) 0 + 0);
 202 #endif
 203
 204 #if INT_FAST8_MIN && INT_FAST8_MAX && INT_FAST16_MIN && INT_FAST16_MAX && INT_FAST32_MIN && INT_FAST32_MAX
 205 /* ok */
 206 #else
 207 err or;
 208 #endif
 209
 210 #if UINT_FAST8_MAX && UINT_FAST16_MAX && UINT_FAST32_MAX
 211 /* ok */
 212 #else
 213 err or;
 214 #endif
 215
 216 /* 7.18.1.4. Integer types capable of holding object pointers */
 217 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
 218
 219 #ifdef INTPTR_MAX
 220 intptr_t g[3] = { 17, INTPTR_MIN, INTPTR_MAX };
 221 verify (sizeof (void *) <= sizeof (intptr_t));
 222 # ifndef __CHERI_PURE_CAPABILITY__
 223 verify (TYPE_MINIMUM (intptr_t) == INTPTR_MIN);
 224 verify (TYPE_MAXIMUM (intptr_t) == INTPTR_MAX);
 225 # endif
 226 verify_same_types (INTPTR_MIN, (intptr_t) 0 + 0);
 227 verify_same_types (INTPTR_MAX, (intptr_t) 0 + 0);
 228 #endif
 229
 230 #ifdef UINTPTR_MAX
 231 uintptr_t h[2] = { 17, UINTPTR_MAX };
 232 verify (sizeof (void *) <= sizeof (uintptr_t));
 233 # ifndef __CHERI_PURE_CAPABILITY__
 234 verify (TYPE_MAXIMUM (uintptr_t) == UINTPTR_MAX);
 235 # endif
 236 verify_same_types (UINTPTR_MAX, (uintptr_t) 0 + 0);
 237 #endif
 238
 239 /* 7.18.1.5. Greatest-width integer types */
 240 /* 7.18.2.5. Limits of greatest-width integer types */
 241
 242 intmax_t i[3] = { INTMAX_C (17), INTMAX_MIN, INTMAX_MAX };
 243 verify (TYPE_MINIMUM (intmax_t) == INTMAX_MIN);
 244 verify (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX);
 245 verify_same_types (INTMAX_MIN, (intmax_t) 0 + 0);
 246 verify_same_types (INTMAX_MAX, (intmax_t) 0 + 0);
 247
 248 uintmax_t j[2] = { UINTMAX_C (17), UINTMAX_MAX };
 249 verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
 250 verify_same_types (UINTMAX_MAX, (uintmax_t) 0 + 0);
 251
 252 /* Older Sun C and HP-UX 10.20 cc don't support 'long long' constants in
 253    the preprocessor.  */
 254 #if !((defined __SUNPRO_C && __SUNPRO_C < 0x5150) \
 255       || (defined __hpux && !defined __GNUC__))
 256 #if INTMAX_MIN && INTMAX_MAX && UINTMAX_MAX
 257 /* ok */
 258 #else
 259 err or;
 260 #endif
 261 #endif
 262
 263 /* 7.18.3. Limits of other integer types */
 264
 265 #include <stddef.h>
 266
 267 verify (TYPE_MINIMUM (ptrdiff_t) == PTRDIFF_MIN);
 268 verify (TYPE_MAXIMUM (ptrdiff_t) == PTRDIFF_MAX);
 269 verify_same_types (PTRDIFF_MIN, (ptrdiff_t) 0 + 0);
 270 verify_same_types (PTRDIFF_MAX, (ptrdiff_t) 0 + 0);
 271
 272 #if PTRDIFF_MIN && PTRDIFF_MAX
 273 /* ok */
 274 #else
 275 err or;
 276 #endif
 277
 278 #include <signal.h>
 279
 280 verify (TYPE_MINIMUM (sig_atomic_t) == SIG_ATOMIC_MIN);
 281 verify (TYPE_MAXIMUM (sig_atomic_t) == SIG_ATOMIC_MAX);
 282 verify_same_types (SIG_ATOMIC_MIN, (sig_atomic_t) 0 + 0);
 283 verify_same_types (SIG_ATOMIC_MAX, (sig_atomic_t) 0 + 0);
 284
 285 #if SIG_ATOMIC_MIN != 17 && SIG_ATOMIC_MAX
 286 /* ok */
 287 #else
 288 err or;
 289 #endif
 290
 291 verify (TYPE_MAXIMUM (size_t) == SIZE_MAX);
 292 verify_same_types (SIZE_MAX, (size_t) 0 + 0);
 293
 294 #if SIZE_MAX
 295 /* ok */
 296 #else
 297 err or;
 298 #endif
 299
 300 verify (TYPE_MINIMUM (wchar_t) == WCHAR_MIN);
 301 verify (TYPE_MAXIMUM (wchar_t) == WCHAR_MAX);
 302 verify_same_types (WCHAR_MIN, (wchar_t) 0 + 0);
 303 verify_same_types (WCHAR_MAX, (wchar_t) 0 + 0);
 304
 305 #if WCHAR_MIN != 17 && WCHAR_MAX
 306 /* ok */
 307 #else
 308 err or;
 309 #endif
 310
 311 #if HAVE_WINT_T
 312 # include <wchar.h>
 313
 314 verify (TYPE_MINIMUM (wint_t) == WINT_MIN);
 315 verify (TYPE_MAXIMUM (wint_t) == WINT_MAX);
 316 verify_same_types (WINT_MIN, (wint_t) 0 + 0);
 317 verify_same_types (WINT_MAX, (wint_t) 0 + 0);
 318
 319 # if WINT_MIN != 17 && WINT_MAX
 320 /* ok */
 321 # else
 322 err or;
 323 # endif
 324 #endif
 325
 326 /* 7.18.4. Macros for integer constants */
 327
 328 verify (INT8_C (17) == 17);
 329 verify_same_types (INT8_C (17), (int_least8_t)0 + 0);
 330 verify (UINT8_C (17) == 17);
 331 verify_same_types (UINT8_C (17), (uint_least8_t)0 + 0);
 332
 333 verify (INT16_C (17) == 17);
 334 verify_same_types (INT16_C (17), (int_least16_t)0 + 0);
 335 verify (UINT16_C (17) == 17);
 336 verify_same_types (UINT16_C (17), (uint_least16_t)0 + 0);
 337
 338 verify (INT32_C (17) == 17);
 339 verify_same_types (INT32_C (17), (int_least32_t)0 + 0);
 340 verify (UINT32_C (17) == 17);
 341 verify_same_types (UINT32_C (17), (uint_least32_t)0 + 0);
 342
 343 #ifdef INT64_C
 344 verify (INT64_C (17) == 17);
 345 verify_same_types (INT64_C (17), (int_least64_t)0 + 0);
 346 #endif
 347 #ifdef UINT64_C
 348 verify (UINT64_C (17) == 17);
 349 verify_same_types (UINT64_C (17), (uint_least64_t)0 + 0);
 350 #endif
 351
 352 verify (INTMAX_C (17) == 17);
 353 verify_same_types (INTMAX_C (17), (intmax_t)0 + 0);
 354 verify (UINTMAX_C (17) == 17);
 355 verify_same_types (UINTMAX_C (17), (uintmax_t)0 + 0);
 356
 357 /* Use _GL_VERIFY (with a fixed-length diagnostic string) rather than verify,
 358    because the latter would require forming each stringified expression, and
 359    many of these would be so long as to trigger a warning/error like this:
 360
 361    test-stdint.c:407:1: error: string length '6980' is greater than the \
 362      length '4095' ISO C99 compilers are required to support \
 363      [-Werror=overlength-strings]
 364   */
 365 #define verify_width(width, min, max) \
 366   _GL_VERIFY ((max) >> ((width) - 1 - ((min) < 0)) == 1, \
 367               "verify_width check", -)
 368
 369 /* Macros specified by ISO/IEC TS 18661-1:2014.  */
 370
 371 #ifdef INT8_MAX
 372 verify_width (INT8_WIDTH, INT8_MIN, INT8_MAX);
 373 #endif
 374 #ifdef UINT8_MAX
 375 verify_width (UINT8_WIDTH, 0, UINT8_MAX);
 376 #endif
 377 #ifdef INT16_MAX
 378 verify_width (INT16_WIDTH, INT16_MIN, INT16_MAX);
 379 #endif
 380 #ifdef UINT16_MAX
 381 verify_width (UINT16_WIDTH, 0, UINT16_MAX);
 382 #endif
 383 #ifdef INT32_MAX
 384 verify_width (INT32_WIDTH, INT32_MIN, INT32_MAX);
 385 #endif
 386 #ifdef UINT32_MAX
 387 verify_width (UINT32_WIDTH, 0, UINT32_MAX);
 388 #endif
 389 #ifdef INT64_MAX
 390 verify_width (INT64_WIDTH, INT64_MIN, INT64_MAX);
 391 #endif
 392 #ifdef UINT64_MAX
 393 verify_width (UINT64_WIDTH, 0, UINT64_MAX);
 394 #endif
 395 verify_width (INT_LEAST8_WIDTH, INT_LEAST8_MIN, INT_LEAST8_MAX);
 396 verify_width (UINT_LEAST8_WIDTH, 0, UINT_LEAST8_MAX);
 397 verify_width (INT_LEAST16_WIDTH, INT_LEAST16_MIN, INT_LEAST16_MAX);
 398 verify_width (UINT_LEAST16_WIDTH, 0, UINT_LEAST16_MAX);
 399 verify_width (INT_LEAST32_WIDTH, INT_LEAST32_MIN, INT_LEAST32_MAX);
 400 verify_width (UINT_LEAST32_WIDTH, 0, UINT_LEAST32_MAX);
 401 verify_width (INT_LEAST64_WIDTH, INT_LEAST64_MIN, INT_LEAST64_MAX);
 402 verify_width (UINT_LEAST64_WIDTH, 0, UINT_LEAST64_MAX);
 403 verify_width (INT_FAST8_WIDTH, INT_FAST8_MIN, INT_FAST8_MAX);
 404 verify_width (UINT_FAST8_WIDTH, 0, UINT_FAST8_MAX);
 405 verify_width (INT_FAST16_WIDTH, INT_FAST16_MIN, INT_FAST16_MAX);
 406 verify_width (UINT_FAST16_WIDTH, 0, UINT_FAST16_MAX);
 407 verify_width (INT_FAST32_WIDTH, INT_FAST32_MIN, INT_FAST32_MAX);
 408 verify_width (UINT_FAST32_WIDTH, 0, UINT_FAST32_MAX);
 409 verify_width (INT_FAST64_WIDTH, INT_FAST64_MIN, INT_FAST64_MAX);
 410 verify_width (UINT_FAST64_WIDTH, 0, UINT_FAST64_MAX);
 411 #ifndef __CHERI_PURE_CAPABILITY__
 412 # ifdef INTPTR_WIDTH
 413 verify_width (INTPTR_WIDTH, INTPTR_MIN, INTPTR_MAX);
 414 # endif
 415 # ifdef UINTPTR_WIDTH
 416 verify_width (UINTPTR_WIDTH, 0, UINTPTR_MAX);
 417 # endif
 418 #endif
 419 verify_width (INTMAX_WIDTH, INTMAX_MIN, INTMAX_MAX);
 420 verify_width (UINTMAX_WIDTH, 0, UINTMAX_MAX);
 421 verify_width (PTRDIFF_WIDTH, PTRDIFF_MIN, PTRDIFF_MAX);
 422 verify_width (SIZE_WIDTH, 0, SIZE_MAX);
 423 verify_width (WCHAR_WIDTH, WCHAR_MIN, WCHAR_MAX);
 424 #ifdef WINT_MAX
 425 verify_width (WINT_WIDTH, WINT_MIN, WINT_MAX);
 426 #endif
 427 #ifdef SIG_ATOMIC_MAX
 428 verify_width (SIG_ATOMIC_WIDTH, SIG_ATOMIC_MIN, SIG_ATOMIC_MAX);
 429 #endif
 430
 431 int
 432 main (void)
 433 {
 434   return 0;
 435 }