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/* Test logb.
Copyright (C) 1997-2024 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_f_data logb_test_data[] =
{
TEST_f_f (logb, plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, minus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
/* Bug 6793: errno setting may be missing. */
TEST_f_f (logb, 0, minus_infty, NO_INEXACT_EXCEPTION|DIVIDE_BY_ZERO_EXCEPTION),
TEST_f_f (logb, minus_zero, minus_infty, NO_INEXACT_EXCEPTION|DIVIDE_BY_ZERO_EXCEPTION),
TEST_f_f (logb, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
TEST_f_f (logb, -snan_value, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
TEST_f_f (logb, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, lit_e, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 1024, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -2000, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.1p-127, -131, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.01p-127, -135, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.011p-127, -135, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
#if !TEST_COND_binary32
TEST_f_f (logb, 0x0.8p-1022, -1023, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.1p-1022, -1026, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.00111p-1022, -1034, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.00001p-1022, -1042, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.000011p-1022, -1042, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x0.0000000000001p-1022, -1074, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
#endif
#if MIN_EXP - MANT_DIG <= -16400
TEST_f_f (logb, 0x1p-16400L, -16400, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, 0x.00000000001p-16382L, -16426, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
#endif
#if MANT_DIG >= 57
TEST_f_f (logb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (logb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
#endif
};
static void
logb_test (void)
{
ALL_RM_TEST (logb, 1, logb_test_data, RUN_TEST_LOOP_f_f, END);
}
static void
do_test (void)
{
logb_test ();
}
/*
* Local Variables:
* mode:c
* End:
*/
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