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Files
gnulib/tests/test-fabs.h
Bruno Haible f1d55e9f84 Use countof, part 2.
Done through  sed -e 's/SIZEOF \([(][^()]*[)]\)/countof \1/g'

* lib/boot-time.c: Include <stdcountof.h>.
* lib/readutmp.c: Include <stdcountof.h>.
* lib/boot-time-aux.h (get_linux_boot_time_fallback,
get_openbsd_boot_time, get_windows_boot_time): Use countof.
* lib/duplocale.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(duplocale): Use countof instead.
* lib/fatal-signal.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(num_fatal_signals, actions_allocated): Use countof instead.
* lib/iconv_open.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(rpl_iconv_open): Use countof instead.
* lib/term-style-control.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(num_job_control_signals): Use countof instead.
* lib/uniconv/u16-conv-to-enc.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
* lib/uniconv/u32-conv-to-enc.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
* lib/uniconv/u-conv-to-enc.h (FUNC): Use countof instead.
* lib/uniconv/u16-strconv-to-enc.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
* lib/uniconv/u32-strconv-to-enc.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
* lib/uniconv/u-strconv-to-enc.h (FUNC): Use countof instead.
* lib/uniname/uniname.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(unicode_name_word, unicode_name_word_lookup, unicode_code_to_index,
unicode_index_to_code, unicode_character_name, unicode_name_character):
Use countof instead.
* lib/uniwidth/width.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(uc_width): Use countof instead.
* lib/wait-process.c: Include <stdcountof.h>.
(SIZEOF): Remove macro.
(slaves_allocated): Use countof instead.
* lib/gen-uni-tables.c (countof): Renamed from SIZEOF.
* modules/boot-time (Depends-on): Add stdcountof-h.
* modules/readutmp (Depends-on): Likewise.
* modules/duplocale (Depends-on): Likewise.
* modules/fatal-signal (Depends-on): Likewise.
* modules/iconv_open (Depends-on): Likewise.
* modules/term-style-control (Depends-on): Likewise.
* modules/uniconv/u16-conv-to-enc (Depends-on): Likewise.
* modules/uniconv/u32-conv-to-enc (Depends-on): Likewise.
* modules/uniconv/u16-strconv-to-enc (Depends-on): Likewise.
* modules/uniconv/u32-strconv-to-enc (Depends-on): Likewise.
* modules/uniname/uniname (Depends-on): Likewise.
* modules/uniwidth/width (Depends-on): Likewise.
* modules/wait-process (Depends-on): Likewise.
* tests/macros.h (SIZEOF): Remove macro.
* tests/**/*.[hc]: Use countof instead of SIZEOF. Include <stdcountof.h>
as needed.
* modules/**/*-tests (Depends-on): Add stdcountof-h if needed.
2026-03-02 14:35:26 +01:00

45 lines
1.2 KiB
C

/* Test of fabs*() function family.
Copyright (C) 2012-2026 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)
{
volatile DOUBLE x;
DOUBLE y;
/* Signed zero. */
x = L_(0.0);
y = FABS (x);
ASSERT (y == L_(0.0));
ASSERT (!signbit (y));
x = MINUS_ZERO;
y = FABS (x);
ASSERT (y == L_(0.0));
ASSERT (!signbit (y));
/* Randomized tests. */
for (int i = 0; i < countof (RANDOM); i++)
{
x = L_(10.0) * RANDOM[i]; /* 0.0 <= x <= 10.0 */
ASSERT (FABS (x) == x);
ASSERT (FABS (- x) == x);
}
}
volatile DOUBLE x;
DOUBLE y;