Line data Source code
1 : /* Test intprops.h. 2 : Copyright (C) 2011-2020 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 Paul Eggert. */ 18 : 19 : /* Tell gcc not to warn about the long expressions that the overflow 20 : macros expand to, or about the (X < 0) expressions. */ 21 : #if 4 < __GNUC__ + (3 <= __GNUC_MINOR__) 22 : # pragma GCC diagnostic ignored "-Woverlength-strings" 23 : # pragma GCC diagnostic ignored "-Wtype-limits" 24 : 25 : /* Work around a bug in GCC 6.1 and earlier; see: 26 : https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68971 */ 27 : # pragma GCC diagnostic ignored "-Woverflow" 28 : 29 : #endif 30 : 31 : #include <config.h> 32 : 33 : #include "intprops.h" 34 : #include "verify.h" 35 : 36 : #include <stdbool.h> 37 : #include <inttypes.h> 38 : #include <limits.h> 39 : 40 : #include "macros.h" 41 : 42 : /* Compile-time verification of expression X. 43 : In this file, we need it as a statement, rather than as a declaration. */ 44 : #define verify_stmt(x) do { verify (x); } while (0) 45 : 46 : /* VERIFY (X) uses a static assertion for compilers that are known to work, 47 : and falls back on a dynamic assertion for other compilers. 48 : These tests should be checkable via 'verify' rather than 'ASSERT', but 49 : using 'verify' would run into a bug with HP-UX 11.23 cc; see 50 : <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00401.html>. */ 51 : #if __GNUC__ || __SUNPRO_C 52 : # define VERIFY(x) verify_stmt (x) 53 : #else 54 : # define VERIFY(x) ASSERT (x) 55 : #endif 56 : 57 : #define DONTCARE __LINE__ 58 : 59 : int int_minus_2 = -2; 60 : int int_1 = 1; 61 : 62 : int 63 1 : main (void) 64 : { 65 : /* Use VERIFY for tests that must be integer constant expressions, 66 : ASSERT otherwise. */ 67 : 68 : /* TYPE_IS_INTEGER. */ 69 : ASSERT (TYPE_IS_INTEGER (bool)); 70 : ASSERT (TYPE_IS_INTEGER (char)); 71 : ASSERT (TYPE_IS_INTEGER (signed char)); 72 : ASSERT (TYPE_IS_INTEGER (unsigned char)); 73 : ASSERT (TYPE_IS_INTEGER (short int)); 74 : ASSERT (TYPE_IS_INTEGER (unsigned short int)); 75 : ASSERT (TYPE_IS_INTEGER (int)); 76 : ASSERT (TYPE_IS_INTEGER (unsigned int)); 77 : ASSERT (TYPE_IS_INTEGER (long int)); 78 : ASSERT (TYPE_IS_INTEGER (unsigned long int)); 79 : ASSERT (TYPE_IS_INTEGER (intmax_t)); 80 : ASSERT (TYPE_IS_INTEGER (uintmax_t)); 81 : ASSERT (! TYPE_IS_INTEGER (float)); 82 : ASSERT (! TYPE_IS_INTEGER (double)); 83 : ASSERT (! TYPE_IS_INTEGER (long double)); 84 : 85 : /* TYPE_SIGNED. */ 86 : /* VERIFY (! TYPE_SIGNED (bool)); // not guaranteed by gnulib substitute */ 87 : VERIFY (TYPE_SIGNED (signed char)); 88 : VERIFY (! TYPE_SIGNED (unsigned char)); 89 : VERIFY (TYPE_SIGNED (short int)); 90 : VERIFY (! TYPE_SIGNED (unsigned short int)); 91 : VERIFY (TYPE_SIGNED (int)); 92 : VERIFY (! TYPE_SIGNED (unsigned int)); 93 : VERIFY (TYPE_SIGNED (long int)); 94 : VERIFY (! TYPE_SIGNED (unsigned long int)); 95 : VERIFY (TYPE_SIGNED (intmax_t)); 96 : VERIFY (! TYPE_SIGNED (uintmax_t)); 97 : ASSERT (TYPE_SIGNED (float)); 98 : ASSERT (TYPE_SIGNED (double)); 99 : ASSERT (TYPE_SIGNED (long double)); 100 : 101 : /* Integer representation. Check that it is two's complement. */ 102 : VERIFY (INT_MIN + INT_MAX < 0); 103 : 104 : /* TYPE_MINIMUM, TYPE_MAXIMUM. */ 105 : VERIFY (TYPE_MINIMUM (char) == CHAR_MIN); 106 : VERIFY (TYPE_MAXIMUM (char) == CHAR_MAX); 107 : VERIFY (TYPE_MINIMUM (unsigned char) == 0); 108 : VERIFY (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX); 109 : VERIFY (TYPE_MINIMUM (signed char) == SCHAR_MIN); 110 : VERIFY (TYPE_MAXIMUM (signed char) == SCHAR_MAX); 111 : VERIFY (TYPE_MINIMUM (short int) == SHRT_MIN); 112 : VERIFY (TYPE_MAXIMUM (short int) == SHRT_MAX); 113 : VERIFY (TYPE_MINIMUM (unsigned short int) == 0); 114 : VERIFY (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX); 115 : VERIFY (TYPE_MINIMUM (int) == INT_MIN); 116 : VERIFY (TYPE_MAXIMUM (int) == INT_MAX); 117 : VERIFY (TYPE_MINIMUM (unsigned int) == 0); 118 : VERIFY (TYPE_MAXIMUM (unsigned int) == UINT_MAX); 119 : VERIFY (TYPE_MINIMUM (long int) == LONG_MIN); 120 : VERIFY (TYPE_MAXIMUM (long int) == LONG_MAX); 121 : VERIFY (TYPE_MINIMUM (unsigned long int) == 0); 122 : VERIFY (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX); 123 : #ifdef LLONG_MAX 124 : verify_stmt (TYPE_MINIMUM (long long int) == LLONG_MIN); 125 : verify_stmt (TYPE_MAXIMUM (long long int) == LLONG_MAX); 126 : verify_stmt (TYPE_MINIMUM (unsigned long long int) == 0); 127 : verify_stmt (TYPE_MAXIMUM (unsigned long long int) == ULLONG_MAX); 128 : #endif 129 : VERIFY (TYPE_MINIMUM (intmax_t) == INTMAX_MIN); 130 : VERIFY (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX); 131 : VERIFY (TYPE_MINIMUM (uintmax_t) == 0); 132 : VERIFY (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX); 133 : 134 : /* TYPE_WIDTH. */ 135 : #ifdef CHAR_WIDTH 136 : verify_stmt (TYPE_WIDTH (char) == CHAR_WIDTH); 137 : verify_stmt (TYPE_WIDTH (signed char) == SCHAR_WIDTH); 138 : verify_stmt (TYPE_WIDTH (unsigned char) == UCHAR_WIDTH); 139 : verify_stmt (TYPE_WIDTH (short int) == SHRT_WIDTH); 140 : verify_stmt (TYPE_WIDTH (unsigned short int) == USHRT_WIDTH); 141 : verify_stmt (TYPE_WIDTH (int) == INT_WIDTH); 142 : verify_stmt (TYPE_WIDTH (unsigned int) == UINT_WIDTH); 143 : verify_stmt (TYPE_WIDTH (long int) == LONG_WIDTH); 144 : verify_stmt (TYPE_WIDTH (unsigned long int) == ULONG_WIDTH); 145 : #ifdef LLONG_WIDTH 146 : verify_stmt (TYPE_WIDTH (long long int) == LLONG_WIDTH); 147 : verify_stmt (TYPE_WIDTH (unsigned long long int) == ULLONG_WIDTH); 148 : #endif 149 : #endif 150 : 151 : /* INT_BITS_STRLEN_BOUND. */ 152 : VERIFY (INT_BITS_STRLEN_BOUND (1) == 1); 153 : VERIFY (INT_BITS_STRLEN_BOUND (2620) == 789); 154 : 155 : /* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */ 156 : #ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX. */ 157 : VERIFY (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1); 158 : VERIFY (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648")); 159 : #endif 160 : #ifdef INT64_MAX 161 : VERIFY (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1); 162 : VERIFY (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808")); 163 : #endif 164 : 165 : /* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as 166 : INT_<op>_OVERFLOW tests, so define macros to do both. OP is the 167 : operation, OPNAME its symbolic name, A and B its operands, T the 168 : result type, V the overflow flag, and VRES the result if V and if 169 : two's complement. CHECK_BINOP is for most binary operatinos, 170 : CHECK_SBINOP for binary +, -, * when the result type is signed, 171 : and CHECK_UNOP for unary operations. */ 172 : #define CHECK_BINOP(op, opname, a, b, t, v, vres) \ 173 : VERIFY (INT_##opname##_RANGE_OVERFLOW (a, b, TYPE_MINIMUM (t), \ 174 : TYPE_MAXIMUM (t)) \ 175 : == (v)); \ 176 : VERIFY (INT_##opname##_OVERFLOW (a, b) == (v)) 177 : #define CHECK_SBINOP(op, opname, a, b, t, v, vres) \ 178 : CHECK_BINOP(op, opname, a, b, t, v, vres); \ 179 : { \ 180 : t result; \ 181 : ASSERT (INT_##opname##_WRAPV (a, b, &result) == (v)); \ 182 : ASSERT (result == ((v) ? (vres) : ((a) op (b)))); \ 183 : } 184 : #define CHECK_UNOP(op, opname, a, t, v) \ 185 : VERIFY (INT_##opname##_RANGE_OVERFLOW (a, TYPE_MINIMUM (t), \ 186 : TYPE_MAXIMUM (t)) \ 187 : == (v)); \ 188 : VERIFY (INT_##opname##_OVERFLOW (a) == (v)) 189 : 190 : /* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */ 191 : VERIFY (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX)); 192 : VERIFY (INT_ADD_OVERFLOW (INT_MAX, 1)); 193 : 194 1 : CHECK_SBINOP (+, ADD, INT_MAX, 1, int, true, INT_MIN); 195 1 : CHECK_SBINOP (+, ADD, INT_MAX, -1, int, false, INT_MAX - 1); 196 1 : CHECK_SBINOP (+, ADD, INT_MIN, 1, int, false, INT_MIN + 1); 197 1 : CHECK_SBINOP (+, ADD, INT_MIN, -1, int, true, INT_MAX); 198 : CHECK_BINOP (+, ADD, UINT_MAX, 1u, unsigned int, true, 0u); 199 : CHECK_BINOP (+, ADD, 0u, 1u, unsigned int, false, 1u); 200 : 201 1 : CHECK_SBINOP (-, SUBTRACT, INT_MAX, 1, int, false, INT_MAX - 1); 202 1 : CHECK_SBINOP (-, SUBTRACT, INT_MAX, -1, int, true, INT_MIN); 203 1 : CHECK_SBINOP (-, SUBTRACT, INT_MIN, 1, int, true, INT_MAX); 204 1 : CHECK_SBINOP (-, SUBTRACT, INT_MIN, -1, int, false, INT_MIN - -1); 205 : CHECK_BINOP (-, SUBTRACT, UINT_MAX, 1u, unsigned int, false, UINT_MAX - 1u); 206 : CHECK_BINOP (-, SUBTRACT, 0u, 1u, unsigned int, true, 0u - 1u); 207 : 208 : CHECK_UNOP (-, NEGATE, INT_MIN, int, true); 209 : CHECK_UNOP (-, NEGATE, 0, int, false); 210 : CHECK_UNOP (-, NEGATE, INT_MAX, int, false); 211 : CHECK_UNOP (-, NEGATE, 0u, unsigned int, false); 212 : CHECK_UNOP (-, NEGATE, 1u, unsigned int, true); 213 : CHECK_UNOP (-, NEGATE, UINT_MAX, unsigned int, true); 214 : 215 1 : CHECK_SBINOP (*, MULTIPLY, INT_MAX, INT_MAX, int, true, 1); 216 1 : CHECK_SBINOP (*, MULTIPLY, INT_MAX, INT_MIN, int, true, INT_MIN); 217 1 : CHECK_SBINOP (*, MULTIPLY, INT_MIN, INT_MAX, int, true, INT_MIN); 218 1 : CHECK_SBINOP (*, MULTIPLY, INT_MIN, INT_MIN, int, true, 0); 219 1 : CHECK_SBINOP (*, MULTIPLY, -1, INT_MIN, int, 220 : INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); 221 : #if !defined __HP_cc 222 1 : CHECK_SBINOP (*, MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX, 223 : long int, false, LONG_MIN - LONG_MIN % INT_MAX); 224 : #endif 225 : 226 : CHECK_BINOP (/, DIVIDE, INT_MIN, -1, int, 227 : INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); 228 : CHECK_BINOP (/, DIVIDE, INT_MAX, 1, int, false, INT_MAX); 229 : CHECK_BINOP (/, DIVIDE, (unsigned int) INT_MIN, -1u, unsigned int, 230 : false, INT_MIN / -1u); 231 : 232 : CHECK_BINOP (%, REMAINDER, INT_MIN, -1, int, INT_NEGATE_OVERFLOW (INT_MIN), 0); 233 : CHECK_BINOP (%, REMAINDER, INT_MAX, 1, int, false, 0); 234 : CHECK_BINOP (%, REMAINDER, (unsigned int) INT_MIN, -1u, unsigned int, 235 : false, INT_MIN % -1u); 236 : 237 : CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX, 1, unsigned int, true, UINT_MAX << 1); 238 : CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX / 2 + 1, 1, unsigned int, true, 239 : (UINT_MAX / 2 + 1) << 1); 240 : CHECK_BINOP (<<, LEFT_SHIFT, UINT_MAX / 2, 1, unsigned int, false, 241 : (UINT_MAX / 2) << 1); 242 : 243 : /* INT_<op>_OVERFLOW and INT_<op>_WRAPV with mixed types. */ 244 : #define CHECK_SUM(a, b, t, v, vres) \ 245 : CHECK_SUM1 (a, b, t, v, vres); \ 246 : CHECK_SUM1 (b, a, t, v, vres) 247 : #define CHECK_SUM_WRAPV(a, b, t, v, vres, okres) \ 248 : CHECK_SUM_WRAPV1 (a, b, t, v, vres, okres); \ 249 : CHECK_SUM_WRAPV1 (b, a, t, v, vres, okres) 250 : #define CHECK_SUM1(a, b, t, v, vres) \ 251 : VERIFY (INT_ADD_OVERFLOW (a, b) == (v)); \ 252 : CHECK_SUM_WRAPV1 (a, b, t, v, vres, (a) + (b)) 253 : #define CHECK_SUM_WRAPV1(a, b, t, v, vres, okres) \ 254 : { \ 255 : t result; \ 256 : ASSERT (INT_ADD_WRAPV (a, b, &result) == (v)); \ 257 : ASSERT (result == ((v) ? (vres) : (okres))); \ 258 : } 259 1 : CHECK_SUM (-1, LONG_MIN, long int, true, LONG_MAX); 260 1 : CHECK_SUM (-1, UINT_MAX, unsigned int, false, DONTCARE); 261 1 : CHECK_SUM (-1L, INT_MIN, long int, INT_MIN == LONG_MIN, 262 : INT_MIN == LONG_MIN ? INT_MAX : DONTCARE); 263 1 : CHECK_SUM (0u, -1, unsigned int, true, 0u + -1); 264 1 : CHECK_SUM (0u, 0, unsigned int, false, DONTCARE); 265 1 : CHECK_SUM (0u, 1, unsigned int, false, DONTCARE); 266 1 : CHECK_SUM (1, LONG_MAX, long int, true, LONG_MIN); 267 1 : CHECK_SUM (1, UINT_MAX, unsigned int, true, 0u); 268 1 : CHECK_SUM (1L, INT_MAX, long int, INT_MAX == LONG_MAX, 269 : INT_MAX == LONG_MAX ? INT_MIN : DONTCARE); 270 1 : CHECK_SUM (1u, INT_MAX, unsigned int, INT_MAX == UINT_MAX, 1u + INT_MAX); 271 1 : CHECK_SUM (1u, INT_MIN, unsigned int, true, 1u + INT_MIN); 272 1 : CHECK_SUM_WRAPV (-1, 1u, int, false, DONTCARE, 0); 273 1 : CHECK_SUM_WRAPV (-1, 1ul, int, false, DONTCARE, 0); 274 1 : CHECK_SUM_WRAPV (-1l, 1u, int, false, DONTCARE, 0); 275 1 : CHECK_SUM_WRAPV (-100, 1000u, int, false, DONTCARE, 900); 276 1 : CHECK_SUM_WRAPV (INT_MIN, UINT_MAX, int, false, DONTCARE, INT_MAX); 277 1 : CHECK_SUM_WRAPV (1u, INT_MAX, int, true, INT_MIN, DONTCARE); 278 1 : CHECK_SUM_WRAPV (INT_MAX, 1, long int, LONG_MAX <= INT_MAX, INT_MIN, 279 : INT_MAX + 1L); 280 1 : CHECK_SUM_WRAPV (UINT_MAX, 1, long int, LONG_MAX <= UINT_MAX, 0, 281 : UINT_MAX + 1L); 282 1 : CHECK_SUM_WRAPV (INT_MAX, 1, unsigned long int, ULONG_MAX <= INT_MAX, 0, 283 : INT_MAX + 1uL); 284 1 : CHECK_SUM_WRAPV (UINT_MAX, 1, unsigned long int, ULONG_MAX <= UINT_MAX, 0, 285 : UINT_MAX + 1uL); 286 : 287 : { 288 : long int result; 289 1 : ASSERT (INT_ADD_WRAPV (1, INT_MAX, &result) == (INT_MAX == LONG_MAX)); 290 1 : ASSERT (INT_ADD_WRAPV (-1, INT_MIN, &result) == (INT_MIN == LONG_MIN)); 291 : } 292 : 293 : #define CHECK_DIFFERENCE(a, b, t, v, vres) \ 294 : VERIFY (INT_SUBTRACT_OVERFLOW (a, b) == (v)) 295 : #define CHECK_SDIFFERENCE(a, b, t, v, vres) \ 296 : CHECK_DIFFERENCE (a, b, t, v, vres); \ 297 : CHECK_SDIFFERENCE_WRAPV (a, b, t, v, vres) 298 : #define CHECK_SDIFFERENCE_WRAPV(a, b, t, v, vres) \ 299 : { \ 300 : t result; \ 301 : ASSERT (INT_SUBTRACT_WRAPV (a, b, &result) == (v)); \ 302 : ASSERT (result == ((v) ? (vres) : ((a) - (b)))); \ 303 : } 304 : CHECK_DIFFERENCE (INT_MAX, 1u, unsigned int, UINT_MAX < INT_MAX - 1, 305 : INT_MAX - 1u); 306 : CHECK_DIFFERENCE (UINT_MAX, 1, unsigned int, false, UINT_MAX - 1); 307 : CHECK_DIFFERENCE (0u, -1, unsigned int, false, 0u - -1); 308 : CHECK_DIFFERENCE (UINT_MAX, -1, unsigned int, true, UINT_MAX - -1); 309 : CHECK_DIFFERENCE (INT_MIN, 1u, unsigned int, true, INT_MIN - 1u); 310 : CHECK_DIFFERENCE (-1, 0u, unsigned int, true, -1 - 0u); 311 1 : CHECK_SDIFFERENCE (-1, INT_MIN, int, false, -1 - INT_MIN); 312 1 : CHECK_SDIFFERENCE (-1, INT_MAX, int, false, -1 - INT_MAX); 313 1 : CHECK_SDIFFERENCE (0, INT_MIN, int, INT_MIN < -INT_MAX, INT_MIN); 314 1 : CHECK_SDIFFERENCE (0, INT_MAX, int, false, 0 - INT_MAX); 315 1 : CHECK_SDIFFERENCE_WRAPV (-1, 1u, int, false, DONTCARE); 316 1 : CHECK_SDIFFERENCE_WRAPV (-1, 1ul, int, false, DONTCARE); 317 1 : CHECK_SDIFFERENCE_WRAPV (-1l, 1u, int, false, DONTCARE); 318 1 : CHECK_SDIFFERENCE_WRAPV (0u, INT_MAX, int, false, DONTCARE); 319 1 : CHECK_SDIFFERENCE_WRAPV (1u, INT_MIN, int, true, 1u - INT_MIN); 320 : { 321 : long int result; 322 1 : ASSERT (INT_SUBTRACT_WRAPV (INT_MAX, -1, &result) == (INT_MAX == LONG_MAX)); 323 1 : ASSERT (INT_SUBTRACT_WRAPV (INT_MIN, 1, &result) == (INT_MAX == LONG_MAX)); 324 : } 325 : 326 : #define CHECK_PRODUCT(a, b, t, v, vres) \ 327 : CHECK_PRODUCT1 (a, b, t, v, vres); \ 328 : CHECK_PRODUCT1 (b, a, t, v, vres) 329 : #define CHECK_SPRODUCT(a, b, t, v, vres) \ 330 : CHECK_SPRODUCT1 (a, b, t, v, vres); \ 331 : CHECK_SPRODUCT1 (b, a, t, v, vres) 332 : #define CHECK_SPRODUCT_WRAPV(a, b, t, v, vres) \ 333 : CHECK_SPRODUCT_WRAPV1 (a, b, t, v, vres); \ 334 : CHECK_SPRODUCT_WRAPV1 (b, a, t, v, vres) 335 : #define CHECK_PRODUCT1(a, b, t, v, vres) \ 336 : VERIFY (INT_MULTIPLY_OVERFLOW (a, b) == (v)) 337 : #define CHECK_SPRODUCT1(a, b, t, v, vres) \ 338 : CHECK_PRODUCT1 (a, b, t, v, vres); \ 339 : CHECK_SPRODUCT_WRAPV1 (a, b, t, v, vres) 340 : #define CHECK_SPRODUCT_WRAPV1(a, b, t, v, vres) \ 341 : { \ 342 : t result; \ 343 : ASSERT (INT_MULTIPLY_WRAPV (a, b, &result) == (v)); \ 344 : ASSERT (result == ((v) ? (vres) : ((a) * (b)))); \ 345 : } 346 : CHECK_PRODUCT (-1, 1u, unsigned int, true, -1 * 1u); 347 1 : CHECK_SPRODUCT (-1, INT_MIN, int, INT_NEGATE_OVERFLOW (INT_MIN), INT_MIN); 348 : CHECK_PRODUCT (-1, UINT_MAX, unsigned int, true, -1 * UINT_MAX); 349 1 : CHECK_SPRODUCT (-32768, LONG_MAX / -32768 - 1, long int, true, LONG_MIN); 350 1 : CHECK_SPRODUCT (-12345, LONG_MAX / -12345, long int, false, DONTCARE); 351 1 : CHECK_SPRODUCT (0, -1, int, false, DONTCARE); 352 1 : CHECK_SPRODUCT (0, 0, int, false, DONTCARE); 353 : CHECK_PRODUCT (0, 0u, unsigned int, false, DONTCARE); 354 1 : CHECK_SPRODUCT (0, 1, int, false, DONTCARE); 355 1 : CHECK_SPRODUCT (0, INT_MAX, int, false, DONTCARE); 356 1 : CHECK_SPRODUCT (0, INT_MIN, int, false, DONTCARE); 357 : CHECK_PRODUCT (0, UINT_MAX, unsigned int, false, DONTCARE); 358 : CHECK_PRODUCT (0u, -1, unsigned int, false, DONTCARE); 359 : CHECK_PRODUCT (0u, 0, unsigned int, false, DONTCARE); 360 : CHECK_PRODUCT (0u, 0u, unsigned int, false, DONTCARE); 361 : CHECK_PRODUCT (0u, 1, unsigned int, false, DONTCARE); 362 : CHECK_PRODUCT (0u, INT_MAX, unsigned int, false, DONTCARE); 363 : CHECK_PRODUCT (0u, INT_MIN, unsigned int, false, DONTCARE); 364 : CHECK_PRODUCT (0u, UINT_MAX, unsigned int, false, DONTCARE); 365 1 : CHECK_SPRODUCT (1, INT_MAX, int, false, DONTCARE); 366 1 : CHECK_SPRODUCT (1, INT_MIN, int, false, DONTCARE); 367 : CHECK_PRODUCT (1, UINT_MAX, unsigned int, false, DONTCARE); 368 : CHECK_PRODUCT (1u, INT_MIN, unsigned int, true, 1u * INT_MIN); 369 : CHECK_PRODUCT (1u, INT_MAX, unsigned int, UINT_MAX < INT_MAX, 1u * INT_MAX); 370 : CHECK_PRODUCT (INT_MAX, UINT_MAX, unsigned int, true, INT_MAX * UINT_MAX); 371 : CHECK_PRODUCT (INT_MAX, ULONG_MAX, unsigned long int, true, 372 : INT_MAX * ULONG_MAX); 373 : #if !defined __HP_cc 374 1 : CHECK_SPRODUCT (INT_MIN, LONG_MAX / INT_MIN - 1, long int, true, LONG_MIN); 375 1 : CHECK_SPRODUCT (INT_MIN, LONG_MAX / INT_MIN, long int, false, DONTCARE); 376 : #endif 377 : CHECK_PRODUCT (INT_MIN, UINT_MAX, unsigned int, true, INT_MIN * UINT_MAX); 378 : CHECK_PRODUCT (INT_MIN, ULONG_MAX, unsigned long int, true, 379 : INT_MIN * ULONG_MAX); 380 1 : CHECK_SPRODUCT_WRAPV (-1, INT_MAX + 1u, int, false, DONTCARE); 381 1 : CHECK_SPRODUCT_WRAPV (-1, 1u, int, false, DONTCARE); 382 1 : CHECK_SPRODUCT (0, ULONG_MAX, int, false, DONTCARE); 383 1 : CHECK_SPRODUCT (0u, LONG_MIN, int, false, DONTCARE); 384 : { 385 : long int result; 386 1 : ASSERT (INT_MULTIPLY_WRAPV (INT_MAX, INT_MAX, &result) 387 : == (LONG_MAX / INT_MAX < INT_MAX)); 388 1 : ASSERT (INT_MULTIPLY_WRAPV (INT_MAX, INT_MAX, &result) 389 : || result == INT_MAX * (long int) INT_MAX); 390 1 : ASSERT (INT_MULTIPLY_WRAPV (INT_MIN, INT_MIN, &result) 391 : || result == INT_MIN * (long int) INT_MIN); 392 : } 393 : 394 : # ifdef LLONG_MAX 395 : { 396 : long long int result; 397 1 : ASSERT (INT_MULTIPLY_WRAPV (LONG_MAX, LONG_MAX, &result) 398 : == (LLONG_MAX / LONG_MAX < LONG_MAX)); 399 1 : ASSERT (INT_MULTIPLY_WRAPV (LONG_MAX, LONG_MAX, &result) 400 : || result == LONG_MAX * (long long int) LONG_MAX); 401 1 : ASSERT (INT_MULTIPLY_WRAPV (LONG_MIN, LONG_MIN, &result) 402 : || result == LONG_MIN * (long long int) LONG_MIN); 403 : } 404 : # endif 405 : 406 : /* Check for GCC bug 91450. */ 407 : { 408 : unsigned long long result; 409 1 : ASSERT (INT_MULTIPLY_WRAPV (int_minus_2, int_1, &result) && result == -2); 410 : } 411 : 412 : #define CHECK_QUOTIENT(a, b, v) VERIFY (INT_DIVIDE_OVERFLOW (a, b) == (v)) 413 : 414 : CHECK_QUOTIENT (INT_MIN, -1L, INT_MIN == LONG_MIN); 415 : CHECK_QUOTIENT (INT_MIN, UINT_MAX, false); 416 : CHECK_QUOTIENT (INTMAX_MIN, UINTMAX_MAX, false); 417 : CHECK_QUOTIENT (INTMAX_MIN, UINT_MAX, false); 418 : CHECK_QUOTIENT (-11, 10u, true); 419 : CHECK_QUOTIENT (-10, 10u, true); 420 : CHECK_QUOTIENT (-9, 10u, false); 421 : CHECK_QUOTIENT (11u, -10, true); 422 : CHECK_QUOTIENT (10u, -10, true); 423 : CHECK_QUOTIENT (9u, -10, false); 424 : 425 : #define CHECK_REMAINDER(a, b, v) VERIFY (INT_REMAINDER_OVERFLOW (a, b) == (v)) 426 : 427 : CHECK_REMAINDER (INT_MIN, -1L, INT_MIN == LONG_MIN); 428 : CHECK_REMAINDER (-1, UINT_MAX, true); 429 : CHECK_REMAINDER ((intmax_t) -1, UINTMAX_MAX, true); 430 : CHECK_REMAINDER (INTMAX_MIN, UINT_MAX, 431 : (INTMAX_MAX < UINT_MAX 432 : && - (unsigned int) INTMAX_MIN % UINT_MAX != 0)); 433 : CHECK_REMAINDER (INT_MIN, ULONG_MAX, INT_MIN % ULONG_MAX != 1); 434 : CHECK_REMAINDER (1u, -1, false); 435 : CHECK_REMAINDER (37*39u, -39, false); 436 : CHECK_REMAINDER (37*39u + 1, -39, true); 437 : CHECK_REMAINDER (37*39u - 1, -39, true); 438 : CHECK_REMAINDER (LONG_MAX, -INT_MAX, false); 439 : 440 1 : return 0; 441 : }