glibc/math/libm-test-log10p1.inc
Joseph Myers 55eb99e9a9 Implement C23 log10p1
C23 adds various <math.h> function families originally defined in TS
18661-4.  Add the log10p1 functions (log10(1+x): like log1p, but for
base-10 logarithms).

This is directly analogous to the log2p1 implementation (except that
whereas log2p1 has a smaller underflow range than log1p, log10p1 has a
larger underflow range).  The test inputs are copied from those for
log1p and log2p1, plus a few more inputs in that wider underflow
range.

Tested for x86_64 and x86, and with build-many-glibcs.py.
2024-06-17 13:48:13 +00:00

54 lines
1.8 KiB
C++

/* Test log10p1.
Copyright (C) 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 log10p1_test_data[] =
{
TEST_f_f (log10p1, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_f_f (log10p1, -2, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (log10p1, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM|XFAIL_ROUNDING_IBM128_LIBGCC),
TEST_f_f (log10p1, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (log10p1, plus_infty, plus_infty, ERRNO_UNCHANGED),
TEST_f_f (log10p1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (log10p1, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_f_f (log10p1, snan_value, qnan_value, INVALID_EXCEPTION),
TEST_f_f (log10p1, -snan_value, qnan_value, INVALID_EXCEPTION),
AUTO_TESTS_f_f (log10p1),
};
static void
log10p1_test (void)
{
ALL_RM_TEST (log10p1, 0, log10p1_test_data, RUN_TEST_LOOP_f_f, END);
}
static void
do_test (void)
{
log10p1_test ();
}
/*
* Local Variables:
* mode:c
* End:
*/