kc3-lang/gnulib/tests/test-fma-ieee.h

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• tests/test-fma-ieee.h

• /* Test of ldexp*() function family.
     Copyright (C) 2012-2025 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  static void
  test_function (void)
  {
    /* [MX] shaded specification in POSIX.  */
  
    /* NaN.  */
    ASSERT (ISNAN (FMA (NAN, L_(3.0), L_(5.0))));
    ASSERT (ISNAN (FMA (NAN, L_(0.0), L_(5.0))));
    ASSERT (ISNAN (FMA (L_(2.0), NAN, L_(5.0))));
    ASSERT (ISNAN (FMA (L_(0.0), NAN, L_(5.0))));
    ASSERT (ISNAN (FMA (NAN, NAN, L_(5.0))));
    ASSERT (ISNAN (FMA (NAN, L_(3.0), NAN)));
    ASSERT (ISNAN (FMA (NAN, L_(0.0), NAN)));
    ASSERT (ISNAN (FMA (L_(2.0), NAN, NAN)));
    ASSERT (ISNAN (FMA (L_(0.0), NAN, NAN)));
    ASSERT (ISNAN (FMA (NAN, NAN, NAN)));
  
    /* Infinity.  */
    ASSERT (ISNAN (FMA (INFINITY, L_(2.0), - INFINITY)));
    ASSERT (ISNAN (FMA (INFINITY, - L_(2.0), INFINITY)));
    ASSERT (ISNAN (FMA (- INFINITY, L_(2.0), INFINITY)));
    ASSERT (ISNAN (FMA (- INFINITY, - L_(2.0), - INFINITY)));
    ASSERT (ISNAN (FMA (L_(2.0), INFINITY, - INFINITY)));
    ASSERT (ISNAN (FMA (L_(2.0), - INFINITY, INFINITY)));
    ASSERT (ISNAN (FMA (- L_(2.0), INFINITY, INFINITY)));
    ASSERT (ISNAN (FMA (- L_(2.0), - INFINITY, - INFINITY)));
  
    ASSERT (FMA (INFINITY, L_(2.0), INFINITY) == INFINITY);
    ASSERT (FMA (INFINITY, - L_(2.0), - INFINITY) == - INFINITY);
    ASSERT (FMA (- INFINITY, L_(2.0), - INFINITY) == - INFINITY);
    ASSERT (FMA (- INFINITY, - L_(2.0), INFINITY) == INFINITY);
    ASSERT (FMA (L_(2.0), INFINITY, INFINITY) == INFINITY);
    ASSERT (FMA (L_(2.0), - INFINITY, - INFINITY) == - INFINITY);
    ASSERT (FMA (- L_(2.0), INFINITY, - INFINITY) == - INFINITY);
    ASSERT (FMA (- L_(2.0), - INFINITY, INFINITY) == INFINITY);
  
    /* Infinity times zero is NaN.  */
    ASSERT (ISNAN (FMA (INFINITY, L_(0.0), L_(7.0))));
    ASSERT (ISNAN (FMA (INFINITY, L_(0.0), INFINITY)));
    ASSERT (ISNAN (FMA (INFINITY, L_(0.0), NAN)));
    ASSERT (ISNAN (FMA (- INFINITY, L_(0.0), L_(7.0))));
    ASSERT (ISNAN (FMA (- INFINITY, L_(0.0), INFINITY)));
    ASSERT (ISNAN (FMA (- INFINITY, L_(0.0), NAN)));
    ASSERT (ISNAN (FMA (L_(0.0), INFINITY, L_(7.0))));
    ASSERT (ISNAN (FMA (L_(0.0), INFINITY, INFINITY)));
    ASSERT (ISNAN (FMA (L_(0.0), INFINITY, NAN)));
    ASSERT (ISNAN (FMA (L_(0.0), - INFINITY, L_(7.0))));
    ASSERT (ISNAN (FMA (L_(0.0), - INFINITY, INFINITY)));
    ASSERT (ISNAN (FMA (L_(0.0), - INFINITY, NAN)));
  
    /* NaN in the z argument.  */
    ASSERT (ISNAN (FMA (L_(2.0), L_(3.0), NAN)));
    ASSERT (ISNAN (FMA (L_(2.0), INFINITY, NAN)));
    ASSERT (ISNAN (FMA (INFINITY, L_(3.0), NAN)));
    ASSERT (ISNAN (FMA (INFINITY, INFINITY, NAN)));
  }
  

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