glibc/math/libm-test-signbit.inc

/* Test signbit.
   Copyright (C) 1997-2022 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include "libm-test-driver.c"

static const struct test_f_i_data signbit_test_data[] =
  {
    TEST_f_b (signbit, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, minus_zero, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, plus_infty, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, minus_infty, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, qnan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, -qnan_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, -snan_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),

    /* signbit (x) != 0 for x < 0.  */
    TEST_f_b (signbit, -1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, -min_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, -min_subnorm_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, -max_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    /* signbit (x) == 0 for x >= 0.  */
    TEST_f_b (signbit, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, min_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, min_subnorm_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
    TEST_f_b (signbit, max_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
  };

static void
signbit_test (void)
{
  ALL_RM_TEST (signbit, 1, signbit_test_data, RUN_TEST_LOOP_f_b_tg, END);
}

static void
do_test (void)
{
  signbit_test ();
}

/*
 * Local Variables:
 * mode:c
 * End:
 */