math/test-math-iseqsig.cc

   1 /* Test for the C++ implementation of iseqsig.
   2    Copyright (C) 2017-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #define _GNU_SOURCE 1
  20 #include <float.h>
  21 #include <math.h>
  22 #include <stdio.h>
  23
  24 #include <limits>
  25
  26 /* There is no NaN for _Float128 in std::numeric_limits.
  27    Include ieee754_float128.h and use the bitfields in the union
  28    ieee854_float128.ieee_nan to build a NaN.  */
  29 #if __HAVE_DISTINCT_FLOAT128
  30 # include <ieee754_float128.h>
  31 #endif
  32
  33 #include <support/check.h>
  34
  35 static void
  36 check (int actual, int expected, const char *actual_expr, int line)
  37 {
  38   if (actual != expected)
  39     {
  40       support_record_failure ();
  41       printf ("%s:%d: error: %s\n", __FILE__, line, actual_expr);
  42       printf ("%s:%d:   expected: %d\n", __FILE__, line, expected);
  43       printf ("%s:%d:   actual: %d\n", __FILE__, line, actual);
  44     }
  45 }
  46
  47 #define CHECK(actual, expected) \
  48   check ((actual), (expected), #actual, __LINE__)
  49
  50 template <class T1, class T2>
  51 static void
  52 check_type ()
  53 {
  54   T1 t1 = 0;
  55   T2 t2 = 0;
  56   CHECK (iseqsig (t1, t2), 1);
  57
  58   t2 = 1;
  59   CHECK (iseqsig (t1, t2), 0);
  60
  61   if (std::numeric_limits<T1>::has_quiet_NaN
  62       && std::numeric_limits<T2>::has_quiet_NaN)
  63     {
  64       CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), t2), 0);
  65       CHECK (iseqsig (t1, std::numeric_limits<T2>::quiet_NaN ()), 0);
  66       CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (),
  67                       std::numeric_limits<T2>::quiet_NaN ()), 0);
  68     }
  69 }
  70
  71 /* Run minimal tests of iseqsig for a pair of types, without relying
  72    on C++ library support or knowledge of the representation.  */
  73 template <class T1, class T2>
  74 static void
  75 check_type_minimal ()
  76 {
  77   T1 t1 = 0;
  78   T2 t2 = 0;
  79   CHECK (iseqsig (t1, t2), 1);
  80
  81   t2 = 1;
  82   CHECK (iseqsig (t1, t2), 0);
  83 }
  84
  85 #if __HAVE_DISTINCT_FLOAT128
  86 static void
  87 check_float128 ()
  88 {
  89   ieee854_float128 q1, q2, q3_nan;
  90
  91   q1.d = 0;
  92   q2.d = 1;
  93   q3_nan.ieee_nan.negative = 0;
  94   q3_nan.ieee_nan.exponent = 0x7FFF;
  95   q3_nan.ieee_nan.quiet_nan = 1;
  96   q3_nan.ieee_nan.mantissa0 = 0x0000;
  97   q3_nan.ieee_nan.mantissa1 = 0x00000000;
  98   q3_nan.ieee_nan.mantissa2 = 0x00000000;
  99   q3_nan.ieee_nan.mantissa3 = 0x00000000;
 100
 101   CHECK (iseqsig (q1.d, q1.d), 1);
 102   CHECK (iseqsig (q1.d, q2.d), 0);
 103   CHECK (iseqsig (q1.d, q3_nan.d), 0);
 104   CHECK (iseqsig (q3_nan.d, q3_nan.d), 0);
 105 }
 106 #endif
 107
 108 static int
 109 do_test (void)
 110 {
 111   check_type<float, float> ();
 112   check_type<float, double> ();
 113   check_type<float, long double> ();
 114   check_type<double, float> ();
 115   check_type<double, double> ();
 116   check_type<double, long double> ();
 117   check_type<long double, float> ();
 118   check_type<long double, double> ();
 119   check_type<long double, long double> ();
 120 #if __HAVE_DISTINCT_FLOAT128
 121   check_float128 ();
 122 #endif
 123
 124 #if __HAVE_FLOAT16
 125   check_type_minimal<float, _Float16> ();
 126 #endif
 127 #if __HAVE_FLOAT32
 128   check_type_minimal<float, _Float32> ();
 129 #endif
 130 #if __HAVE_FLOAT64
 131   check_type_minimal<float, _Float64> ();
 132 #endif
 133 #if __HAVE_FLOAT128
 134   check_type_minimal<float, _Float128> ();
 135 #endif
 136 #if __HAVE_FLOAT32X
 137   check_type_minimal<float, _Float32x> ();
 138 #endif
 139 #if __HAVE_FLOAT64X
 140   check_type_minimal<float, _Float64x> ();
 141 #endif
 142 #if __HAVE_FLOAT128X
 143   check_type_minimal<float, _Float128x> ();
 144 #endif
 145 #if __HAVE_FLOAT16
 146   check_type_minimal<double, _Float16> ();
 147 #endif
 148 #if __HAVE_FLOAT32
 149   check_type_minimal<double, _Float32> ();
 150 #endif
 151 #if __HAVE_FLOAT64
 152   check_type_minimal<double, _Float64> ();
 153 #endif
 154 #if __HAVE_FLOAT128
 155   check_type_minimal<double, _Float128> ();
 156 #endif
 157 #if __HAVE_FLOAT32X
 158   check_type_minimal<double, _Float32x> ();
 159 #endif
 160 #if __HAVE_FLOAT64X
 161   check_type_minimal<double, _Float64x> ();
 162 #endif
 163 #if __HAVE_FLOAT128X
 164   check_type_minimal<double, _Float128x> ();
 165 #endif
 166 #if __HAVE_FLOAT16
 167   check_type_minimal<long double, _Float16> ();
 168 #endif
 169 #if __HAVE_FLOAT32
 170   check_type_minimal<long double, _Float32> ();
 171 #endif
 172 #if __HAVE_FLOAT64
 173   check_type_minimal<long double, _Float64> ();
 174 #endif
 175 #if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106
 176   check_type_minimal<long double, _Float128> ();
 177 #endif
 178 #if __HAVE_FLOAT32X
 179   check_type_minimal<long double, _Float32x> ();
 180 #endif
 181 #if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106
 182   check_type_minimal<long double, _Float64x> ();
 183 #endif
 184 #if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106
 185   check_type_minimal<long double, _Float128x> ();
 186 #endif
 187 #if __HAVE_FLOAT16
 188   check_type_minimal<_Float16, float> ();
 189 #endif
 190 #if __HAVE_FLOAT16
 191   check_type_minimal<_Float16, double> ();
 192 #endif
 193 #if __HAVE_FLOAT16
 194   check_type_minimal<_Float16, long double> ();
 195 #endif
 196 #if __HAVE_FLOAT16
 197   check_type_minimal<_Float16, _Float16> ();
 198 #endif
 199 #if __HAVE_FLOAT16 && __HAVE_FLOAT32
 200   check_type_minimal<_Float16, _Float32> ();
 201 #endif
 202 #if __HAVE_FLOAT16 && __HAVE_FLOAT64
 203   check_type_minimal<_Float16, _Float64> ();
 204 #endif
 205 #if __HAVE_FLOAT16 && __HAVE_FLOAT128
 206   check_type_minimal<_Float16, _Float128> ();
 207 #endif
 208 #if __HAVE_FLOAT16 && __HAVE_FLOAT32X
 209   check_type_minimal<_Float16, _Float32x> ();
 210 #endif
 211 #if __HAVE_FLOAT16 && __HAVE_FLOAT64X
 212   check_type_minimal<_Float16, _Float64x> ();
 213 #endif
 214 #if __HAVE_FLOAT16 && __HAVE_FLOAT128X
 215   check_type_minimal<_Float16, _Float128x> ();
 216 #endif
 217 #if __HAVE_FLOAT32
 218   check_type_minimal<_Float32, float> ();
 219 #endif
 220 #if __HAVE_FLOAT32
 221   check_type_minimal<_Float32, double> ();
 222 #endif
 223 #if __HAVE_FLOAT32
 224   check_type_minimal<_Float32, long double> ();
 225 #endif
 226 #if __HAVE_FLOAT32 && __HAVE_FLOAT16
 227   check_type_minimal<_Float32, _Float16> ();
 228 #endif
 229 #if __HAVE_FLOAT32
 230   check_type_minimal<_Float32, _Float32> ();
 231 #endif
 232 #if __HAVE_FLOAT32 && __HAVE_FLOAT64
 233   check_type_minimal<_Float32, _Float64> ();
 234 #endif
 235 #if __HAVE_FLOAT32 && __HAVE_FLOAT128
 236   check_type_minimal<_Float32, _Float128> ();
 237 #endif
 238 #if __HAVE_FLOAT32 && __HAVE_FLOAT32X
 239   check_type_minimal<_Float32, _Float32x> ();
 240 #endif
 241 #if __HAVE_FLOAT32 && __HAVE_FLOAT64X
 242   check_type_minimal<_Float32, _Float64x> ();
 243 #endif
 244 #if __HAVE_FLOAT32 && __HAVE_FLOAT128X
 245   check_type_minimal<_Float32, _Float128x> ();
 246 #endif
 247 #if __HAVE_FLOAT64
 248   check_type_minimal<_Float64, float> ();
 249 #endif
 250 #if __HAVE_FLOAT64
 251   check_type_minimal<_Float64, double> ();
 252 #endif
 253 #if __HAVE_FLOAT64
 254   check_type_minimal<_Float64, long double> ();
 255 #endif
 256 #if __HAVE_FLOAT64 && __HAVE_FLOAT16
 257   check_type_minimal<_Float64, _Float16> ();
 258 #endif
 259 #if __HAVE_FLOAT64 && __HAVE_FLOAT32
 260   check_type_minimal<_Float64, _Float32> ();
 261 #endif
 262 #if __HAVE_FLOAT64
 263   check_type_minimal<_Float64, _Float64> ();
 264 #endif
 265 #if __HAVE_FLOAT64 && __HAVE_FLOAT128
 266   check_type_minimal<_Float64, _Float128> ();
 267 #endif
 268 #if __HAVE_FLOAT64 && __HAVE_FLOAT32X
 269   check_type_minimal<_Float64, _Float32x> ();
 270 #endif
 271 #if __HAVE_FLOAT64 && __HAVE_FLOAT64X
 272   check_type_minimal<_Float64, _Float64x> ();
 273 #endif
 274 #if __HAVE_FLOAT64 && __HAVE_FLOAT128X
 275   check_type_minimal<_Float64, _Float128x> ();
 276 #endif
 277 #if __HAVE_FLOAT128
 278   check_type_minimal<_Float128, float> ();
 279 #endif
 280 #if __HAVE_FLOAT128
 281   check_type_minimal<_Float128, double> ();
 282 #endif
 283 #if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106
 284   check_type_minimal<_Float128, long double> ();
 285 #endif
 286 #if __HAVE_FLOAT128 && __HAVE_FLOAT16
 287   check_type_minimal<_Float128, _Float16> ();
 288 #endif
 289 #if __HAVE_FLOAT128 && __HAVE_FLOAT32
 290   check_type_minimal<_Float128, _Float32> ();
 291 #endif
 292 #if __HAVE_FLOAT128 && __HAVE_FLOAT64
 293   check_type_minimal<_Float128, _Float64> ();
 294 #endif
 295 #if __HAVE_FLOAT128
 296   check_type_minimal<_Float128, _Float128> ();
 297 #endif
 298 #if __HAVE_FLOAT128 && __HAVE_FLOAT32X
 299   check_type_minimal<_Float128, _Float32x> ();
 300 #endif
 301 #if __HAVE_FLOAT128 && __HAVE_FLOAT64X
 302   check_type_minimal<_Float128, _Float64x> ();
 303 #endif
 304 #if __HAVE_FLOAT128 && __HAVE_FLOAT128X
 305   check_type_minimal<_Float128, _Float128x> ();
 306 #endif
 307 #if __HAVE_FLOAT32X
 308   check_type_minimal<_Float32x, float> ();
 309 #endif
 310 #if __HAVE_FLOAT32X
 311   check_type_minimal<_Float32x, double> ();
 312 #endif
 313 #if __HAVE_FLOAT32X
 314   check_type_minimal<_Float32x, long double> ();
 315 #endif
 316 #if __HAVE_FLOAT32X && __HAVE_FLOAT16
 317   check_type_minimal<_Float32x, _Float16> ();
 318 #endif
 319 #if __HAVE_FLOAT32X && __HAVE_FLOAT32
 320   check_type_minimal<_Float32x, _Float32> ();
 321 #endif
 322 #if __HAVE_FLOAT32X && __HAVE_FLOAT64
 323   check_type_minimal<_Float32x, _Float64> ();
 324 #endif
 325 #if __HAVE_FLOAT32X && __HAVE_FLOAT128
 326   check_type_minimal<_Float32x, _Float128> ();
 327 #endif
 328 #if __HAVE_FLOAT32X
 329   check_type_minimal<_Float32x, _Float32x> ();
 330 #endif
 331 #if __HAVE_FLOAT32X && __HAVE_FLOAT64X
 332   check_type_minimal<_Float32x, _Float64x> ();
 333 #endif
 334 #if __HAVE_FLOAT32X && __HAVE_FLOAT128X
 335   check_type_minimal<_Float32x, _Float128x> ();
 336 #endif
 337 #if __HAVE_FLOAT64X
 338   check_type_minimal<_Float64x, float> ();
 339 #endif
 340 #if __HAVE_FLOAT64X
 341   check_type_minimal<_Float64x, double> ();
 342 #endif
 343 #if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106
 344   check_type_minimal<_Float64x, long double> ();
 345 #endif
 346 #if __HAVE_FLOAT64X && __HAVE_FLOAT16
 347   check_type_minimal<_Float64x, _Float16> ();
 348 #endif
 349 #if __HAVE_FLOAT64X && __HAVE_FLOAT32
 350   check_type_minimal<_Float64x, _Float32> ();
 351 #endif
 352 #if __HAVE_FLOAT64X && __HAVE_FLOAT64
 353   check_type_minimal<_Float64x, _Float64> ();
 354 #endif
 355 #if __HAVE_FLOAT64X && __HAVE_FLOAT128
 356   check_type_minimal<_Float64x, _Float128> ();
 357 #endif
 358 #if __HAVE_FLOAT64X && __HAVE_FLOAT32X
 359   check_type_minimal<_Float64x, _Float32x> ();
 360 #endif
 361 #if __HAVE_FLOAT64X
 362   check_type_minimal<_Float64x, _Float64x> ();
 363 #endif
 364 #if __HAVE_FLOAT64X && __HAVE_FLOAT128X
 365   check_type_minimal<_Float64x, _Float128x> ();
 366 #endif
 367 #if __HAVE_FLOAT128X
 368   check_type_minimal<_Float128x, float> ();
 369 #endif
 370 #if __HAVE_FLOAT128X
 371   check_type_minimal<_Float128x, double> ();
 372 #endif
 373 #if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106
 374   check_type_minimal<_Float128x, long double> ();
 375 #endif
 376 #if __HAVE_FLOAT128X && __HAVE_FLOAT16
 377   check_type_minimal<_Float128x, _Float16> ();
 378 #endif
 379 #if __HAVE_FLOAT128X && __HAVE_FLOAT32
 380   check_type_minimal<_Float128x, _Float32> ();
 381 #endif
 382 #if __HAVE_FLOAT128X && __HAVE_FLOAT64
 383   check_type_minimal<_Float128x, _Float64> ();
 384 #endif
 385 #if __HAVE_FLOAT128X && __HAVE_FLOAT128
 386   check_type_minimal<_Float128x, _Float128> ();
 387 #endif
 388 #if __HAVE_FLOAT128X && __HAVE_FLOAT32X
 389   check_type_minimal<_Float128x, _Float32x> ();
 390 #endif
 391 #if __HAVE_FLOAT128X && __HAVE_FLOAT64X
 392   check_type_minimal<_Float128x, _Float64x> ();
 393 #endif
 394 #if __HAVE_FLOAT128X
 395   check_type_minimal<_Float128x, _Float128x> ();
 396 #endif
 397
 398   return 0;
 399 }
 400
 401 #include <support/test-driver.c>