tests/test-stdint.c

   1 /* Test of <stdint.h> substitute.
   2    Copyright (C) 2006-2021 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 intptr_t g[3] = { 17, INTPTR_MIN, INTPTR_MAX };
 220 verify (sizeof (void *) <= sizeof (intptr_t));
 221 verify (TYPE_MINIMUM (intptr_t) == INTPTR_MIN);
 222 verify (TYPE_MAXIMUM (intptr_t) == INTPTR_MAX);
 223 verify_same_types (INTPTR_MIN, (intptr_t) 0 + 0);
 224 verify_same_types (INTPTR_MAX, (intptr_t) 0 + 0);
 225
 226 uintptr_t h[2] = { 17, UINTPTR_MAX };
 227 verify (sizeof (void *) <= sizeof (uintptr_t));
 228 verify (TYPE_MAXIMUM (uintptr_t) == UINTPTR_MAX);
 229 verify_same_types (UINTPTR_MAX, (uintptr_t) 0 + 0);
 230
 231 #if INTPTR_MIN && INTPTR_MAX && UINTPTR_MAX
 232 /* ok */
 233 #else
 234 err or;
 235 #endif
 236
 237 /* 7.18.1.5. Greatest-width integer types */
 238 /* 7.18.2.5. Limits of greatest-width integer types */
 239
 240 intmax_t i[3] = { INTMAX_C (17), INTMAX_MIN, INTMAX_MAX };
 241 verify (TYPE_MINIMUM (intmax_t) == INTMAX_MIN);
 242 verify (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX);
 243 verify_same_types (INTMAX_MIN, (intmax_t) 0 + 0);
 244 verify_same_types (INTMAX_MAX, (intmax_t) 0 + 0);
 245
 246 uintmax_t j[2] = { UINTMAX_C (17), UINTMAX_MAX };
 247 verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
 248 verify_same_types (UINTMAX_MAX, (uintmax_t) 0 + 0);
 249
 250 /* As of 2007, Sun C and HP-UX 10.20 cc don't support 'long long' constants in
 251    the preprocessor.  */
 252 #if !(defined __SUNPRO_C || (defined __hpux && !defined __GNUC__))
 253 #if INTMAX_MIN && INTMAX_MAX && UINTMAX_MAX
 254 /* ok */
 255 #else
 256 err or;
 257 #endif
 258 #endif
 259
 260 /* 7.18.3. Limits of other integer types */
 261
 262 #include <stddef.h>
 263
 264 verify (TYPE_MINIMUM (ptrdiff_t) == PTRDIFF_MIN);
 265 verify (TYPE_MAXIMUM (ptrdiff_t) == PTRDIFF_MAX);
 266 verify_same_types (PTRDIFF_MIN, (ptrdiff_t) 0 + 0);
 267 verify_same_types (PTRDIFF_MAX, (ptrdiff_t) 0 + 0);
 268
 269 #if PTRDIFF_MIN && PTRDIFF_MAX
 270 /* ok */
 271 #else
 272 err or;
 273 #endif
 274
 275 #include <signal.h>
 276
 277 verify (TYPE_MINIMUM (sig_atomic_t) == SIG_ATOMIC_MIN);
 278 verify (TYPE_MAXIMUM (sig_atomic_t) == SIG_ATOMIC_MAX);
 279 verify_same_types (SIG_ATOMIC_MIN, (sig_atomic_t) 0 + 0);
 280 verify_same_types (SIG_ATOMIC_MAX, (sig_atomic_t) 0 + 0);
 281
 282 #if SIG_ATOMIC_MIN != 17 && SIG_ATOMIC_MAX
 283 /* ok */
 284 #else
 285 err or;
 286 #endif
 287
 288 verify (TYPE_MAXIMUM (size_t) == SIZE_MAX);
 289 verify_same_types (SIZE_MAX, (size_t) 0 + 0);
 290
 291 #if SIZE_MAX
 292 /* ok */
 293 #else
 294 err or;
 295 #endif
 296
 297 #if HAVE_WCHAR_T
 298 verify (TYPE_MINIMUM (wchar_t) == WCHAR_MIN);
 299 verify (TYPE_MAXIMUM (wchar_t) == WCHAR_MAX);
 300 verify_same_types (WCHAR_MIN, (wchar_t) 0 + 0);
 301 verify_same_types (WCHAR_MAX, (wchar_t) 0 + 0);
 302
 303 # if WCHAR_MIN != 17 && WCHAR_MAX
 304 /* ok */
 305 # else
 306 err or;
 307 # endif
 308 #endif
 309
 310 #if HAVE_WINT_T
 311 # include <wchar.h>
 312
 313 verify (TYPE_MINIMUM (wint_t) == WINT_MIN);
 314 verify (TYPE_MAXIMUM (wint_t) == WINT_MAX);
 315 verify_same_types (WINT_MIN, (wint_t) 0 + 0);
 316 verify_same_types (WINT_MAX, (wint_t) 0 + 0);
 317
 318 # if WINT_MIN != 17 && WINT_MAX
 319 /* ok */
 320 # else
 321 err or;
 322 # endif
 323 #endif
 324
 325 /* 7.18.4. Macros for integer constants */
 326
 327 verify (INT8_C (17) == 17);
 328 verify_same_types (INT8_C (17), (int_least8_t)0 + 0);
 329 verify (UINT8_C (17) == 17);
 330 verify_same_types (UINT8_C (17), (uint_least8_t)0 + 0);
 331
 332 verify (INT16_C (17) == 17);
 333 verify_same_types (INT16_C (17), (int_least16_t)0 + 0);
 334 verify (UINT16_C (17) == 17);
 335 verify_same_types (UINT16_C (17), (uint_least16_t)0 + 0);
 336
 337 verify (INT32_C (17) == 17);
 338 verify_same_types (INT32_C (17), (int_least32_t)0 + 0);
 339 verify (UINT32_C (17) == 17);
 340 verify_same_types (UINT32_C (17), (uint_least32_t)0 + 0);
 341
 342 #ifdef INT64_C
 343 verify (INT64_C (17) == 17);
 344 verify_same_types (INT64_C (17), (int_least64_t)0 + 0);
 345 #endif
 346 #ifdef UINT64_C
 347 verify (UINT64_C (17) == 17);
 348 verify_same_types (UINT64_C (17), (uint_least64_t)0 + 0);
 349 #endif
 350
 351 verify (INTMAX_C (17) == 17);
 352 verify_same_types (INTMAX_C (17), (intmax_t)0 + 0);
 353 verify (UINTMAX_C (17) == 17);
 354 verify_same_types (UINTMAX_C (17), (uintmax_t)0 + 0);
 355
 356 /* Use _GL_VERIFY (with a fixed-length diagnostic string) rather than verify,
 357    because the latter would require forming each stringified expression, and
 358    many of these would be so long as to trigger a warning/error like this:
 359
 360    test-stdint.c:407:1: error: string length '6980' is greater than the \
 361      length '4095' ISO C99 compilers are required to support \
 362      [-Werror=overlength-strings]
 363   */
 364 #define verify_width(width, min, max) \
 365   _GL_VERIFY ((max) >> ((width) - 1 - ((min) < 0)) == 1, \
 366               "verify_width check", -)
 367
 368 /* Macros specified by ISO/IEC TS 18661-1:2014.  */
 369
 370 #ifdef INT8_MAX
 371 verify_width (INT8_WIDTH, INT8_MIN, INT8_MAX);
 372 #endif
 373 #ifdef UINT8_MAX
 374 verify_width (UINT8_WIDTH, 0, UINT8_MAX);
 375 #endif
 376 #ifdef INT16_MAX
 377 verify_width (INT16_WIDTH, INT16_MIN, INT16_MAX);
 378 #endif
 379 #ifdef UINT16_MAX
 380 verify_width (UINT16_WIDTH, 0, UINT16_MAX);
 381 #endif
 382 #ifdef INT32_MAX
 383 verify_width (INT32_WIDTH, INT32_MIN, INT32_MAX);
 384 #endif
 385 #ifdef UINT32_MAX
 386 verify_width (UINT32_WIDTH, 0, UINT32_MAX);
 387 #endif
 388 #ifdef INT64_MAX
 389 verify_width (INT64_WIDTH, INT64_MIN, INT64_MAX);
 390 #endif
 391 #ifdef UINT64_MAX
 392 verify_width (UINT64_WIDTH, 0, UINT64_MAX);
 393 #endif
 394 verify_width (INT_LEAST8_WIDTH, INT_LEAST8_MIN, INT_LEAST8_MAX);
 395 verify_width (UINT_LEAST8_WIDTH, 0, UINT_LEAST8_MAX);
 396 verify_width (INT_LEAST16_WIDTH, INT_LEAST16_MIN, INT_LEAST16_MAX);
 397 verify_width (UINT_LEAST16_WIDTH, 0, UINT_LEAST16_MAX);
 398 verify_width (INT_LEAST32_WIDTH, INT_LEAST32_MIN, INT_LEAST32_MAX);
 399 verify_width (UINT_LEAST32_WIDTH, 0, UINT_LEAST32_MAX);
 400 verify_width (INT_LEAST64_WIDTH, INT_LEAST64_MIN, INT_LEAST64_MAX);
 401 verify_width (UINT_LEAST64_WIDTH, 0, UINT_LEAST64_MAX);
 402 verify_width (INT_FAST8_WIDTH, INT_FAST8_MIN, INT_FAST8_MAX);
 403 verify_width (UINT_FAST8_WIDTH, 0, UINT_FAST8_MAX);
 404 verify_width (INT_FAST16_WIDTH, INT_FAST16_MIN, INT_FAST16_MAX);
 405 verify_width (UINT_FAST16_WIDTH, 0, UINT_FAST16_MAX);
 406 verify_width (INT_FAST32_WIDTH, INT_FAST32_MIN, INT_FAST32_MAX);
 407 verify_width (UINT_FAST32_WIDTH, 0, UINT_FAST32_MAX);
 408 verify_width (INT_FAST64_WIDTH, INT_FAST64_MIN, INT_FAST64_MAX);
 409 verify_width (UINT_FAST64_WIDTH, 0, UINT_FAST64_MAX);
 410 verify_width (INTPTR_WIDTH, INTPTR_MIN, INTPTR_MAX);
 411 verify_width (UINTPTR_WIDTH, 0, UINTPTR_MAX);
 412 verify_width (INTMAX_WIDTH, INTMAX_MIN, INTMAX_MAX);
 413 verify_width (UINTMAX_WIDTH, 0, UINTMAX_MAX);
 414 verify_width (PTRDIFF_WIDTH, PTRDIFF_MIN, PTRDIFF_MAX);
 415 verify_width (SIZE_WIDTH, 0, SIZE_MAX);
 416 verify_width (WCHAR_WIDTH, WCHAR_MIN, WCHAR_MAX);
 417 #ifdef WINT_MAX
 418 verify_width (WINT_WIDTH, WINT_MIN, WINT_MAX);
 419 #endif
 420 #ifdef SIG_ATOMIC_MAX
 421 verify_width (SIG_ATOMIC_WIDTH, SIG_ATOMIC_MIN, SIG_ATOMIC_MAX);
 422 #endif
 423
 424 int
 425 main (void)
 426 {
 427   return 0;
 428 }