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tests/lib/libm: Test nextafter/nexttoward and variants. 

The tests are fairly trivial but should work without any conditionals
about floating-point formats.
pull/36/head
riastradh 2024-05-05 02:53:01 +00:00
parent 8f27842e48
commit b129f29edd
4 changed files with 165 additions and 3 deletions
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3
distrib/sets/lists/debug/mi
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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.434 2024/04/28 18:55:04 rillig Exp $
# $NetBSD: mi,v 1.435 2024/05/05 02:53:01 riastradh Exp $
./etc/mtree/set.debug comp-sys-root
./usr/lib comp-sys-usr compatdir
./usr/lib/i18n/libBIG5_g.a comp-c-debuglib debuglib
@ -2320,6 +2320,7 @@
./usr/libdata/debug/usr/tests/lib/libm/t_libm.debug tests-obsolete obsolete,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_log.debug tests-lib-debug debug,atf,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_modf.debug tests-lib-debug debug,atf,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_next.debug tests-lib-debug debug,atf,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_pow.debug tests-lib-debug debug,atf,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_precision.debug tests-lib-debug debug,atf,compattestfile
./usr/libdata/debug/usr/tests/lib/libm/t_round.debug tests-lib-debug debug,atf,compattestfile

3
distrib/sets/lists/tests/mi
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@ -1,4 +1,4 @@
# $NetBSD: mi,v 1.1314 2024/04/28 14:39:22 rillig Exp $
# $NetBSD: mi,v 1.1315 2024/05/05 02:53:01 riastradh Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@ -3946,6 +3946,7 @@
./usr/tests/lib/libm/t_libm tests-obsolete obsolete
./usr/tests/lib/libm/t_log tests-lib-tests compattestfile,atf
./usr/tests/lib/libm/t_modf tests-lib-tests compattestfile,atf
./usr/tests/lib/libm/t_next tests-lib-tests compattestfile,atf
./usr/tests/lib/libm/t_pow tests-lib-tests compattestfile,atf
./usr/tests/lib/libm/t_precision tests-lib-tests compattestfile,atf
./usr/tests/lib/libm/t_round tests-lib-tests compattestfile,atf

3
tests/lib/libm/Makefile
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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.48 2022/08/27 08:31:58 christos Exp $
# $NetBSD: Makefile,v 1.49 2024/05/05 02:53:02 riastradh Exp $
.include <bsd.own.mk>
@ -35,6 +35,7 @@ TESTS_C+= t_infinity
TESTS_C+= t_ldexp
TESTS_C+= t_log
TESTS_C+= t_modf
TESTS_C+= t_next
TESTS_C+= t_pow
TESTS_C+= t_precision
TESTS_C+= t_round

159
tests/lib/libm/t_next.c Normal file
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@ -0,0 +1,159 @@
/* $NetBSD: t_next.c,v 1.1 2024/05/05 02:53:02 riastradh Exp $ */
/*-
* Copyright (c) 2024 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_next.c,v 1.1 2024/05/05 02:53:02 riastradh Exp $");
#include <atf-c.h>
#include <float.h>
#include <math.h>
#define CHECK(x, y) \
ATF_CHECK_EQ_MSG((x), (y), #x"=%La=%Lg, "#y"=%La=%Lg", \
(long double)(x), (long double)(x), \
(long double)(y), (long double)(y))
ATF_TC(nextafter);
ATF_TC_HEAD(nextafter, tc)
{
atf_tc_set_md_var(tc, "descr", "nextafter");
}
ATF_TC_BODY(nextafter, tc)
{
CHECK(nextafter(1, 2), 1 + DBL_EPSILON);
CHECK(nextafter(1 + DBL_EPSILON, 0), 1);
CHECK(nextafter(1, 0), 1 - DBL_EPSILON/2);
CHECK(nextafter(1 - DBL_EPSILON/2, 2), 1);
CHECK(nextafter(-1, -2), -1 - DBL_EPSILON);
CHECK(nextafter(-1 - DBL_EPSILON, 0), -1);
CHECK(nextafter(-1, 0), -1 + DBL_EPSILON/2);
CHECK(nextafter(-1 + DBL_EPSILON/2, -2), -1);
}
ATF_TC(nextafterf);
ATF_TC_HEAD(nextafterf, tc)
{
atf_tc_set_md_var(tc, "descr", "nextafterf");
}
ATF_TC_BODY(nextafterf, tc)
{
CHECK(nextafterf(1, 2), 1 + FLT_EPSILON);
CHECK(nextafterf(1 + FLT_EPSILON, 0), 1);
CHECK(nextafterf(1, 0), 1 - FLT_EPSILON/2);
CHECK(nextafterf(1 - FLT_EPSILON/2, 2), 1);
CHECK(nextafterf(-1, -2), -1 - FLT_EPSILON);
CHECK(nextafterf(-1 - FLT_EPSILON, 0), -1);
CHECK(nextafterf(-1, 0), -1 + FLT_EPSILON/2);
CHECK(nextafterf(-1 + FLT_EPSILON/2, -2), -1);
}
ATF_TC(nextafterl);
ATF_TC_HEAD(nextafterl, tc)
{
atf_tc_set_md_var(tc, "descr", "nextafterl");
}
ATF_TC_BODY(nextafterl, tc)
{
CHECK(nextafterl(1, 2), 1 + LDBL_EPSILON);
CHECK(nextafterl(1 + LDBL_EPSILON, 0), 1);
CHECK(nextafterl(1, 0), 1 - LDBL_EPSILON/2);
CHECK(nextafterl(1 - LDBL_EPSILON/2, 2), 1);
CHECK(nextafterl(-1, -2), -1 - LDBL_EPSILON);
CHECK(nextafterl(-1 - LDBL_EPSILON, 0), -1);
CHECK(nextafterl(-1, 0), -1 + LDBL_EPSILON/2);
CHECK(nextafterl(-1 + LDBL_EPSILON/2, -2), -1);
}
ATF_TC(nexttoward);
ATF_TC_HEAD(nexttoward, tc)
{
atf_tc_set_md_var(tc, "descr", "nexttoward");
}
ATF_TC_BODY(nexttoward, tc)
{
CHECK(nexttoward(1, 2), 1 + DBL_EPSILON);
CHECK(nexttoward(1 + DBL_EPSILON, 0), 1);
CHECK(nexttoward(1, 0), 1 - DBL_EPSILON/2);
CHECK(nexttoward(1 - DBL_EPSILON/2, 2), 1);
CHECK(nexttoward(-1, -2), -1 - DBL_EPSILON);
CHECK(nexttoward(-1 - DBL_EPSILON, 0), -1);
CHECK(nexttoward(-1, 0), -1 + DBL_EPSILON/2);
CHECK(nexttoward(-1 + DBL_EPSILON/2, -2), -1);
}
ATF_TC(nexttowardf);
ATF_TC_HEAD(nexttowardf, tc)
{
atf_tc_set_md_var(tc, "descr", "nexttowardf");
}
ATF_TC_BODY(nexttowardf, tc)
{
CHECK(nexttowardf(1, 2), 1 + FLT_EPSILON);
CHECK(nexttowardf(1 + FLT_EPSILON, 0), 1);
CHECK(nexttowardf(1, 0), 1 - FLT_EPSILON/2);
CHECK(nexttowardf(1 - FLT_EPSILON/2, 2), 1);
CHECK(nexttowardf(-1, -2), -1 - FLT_EPSILON);
CHECK(nexttowardf(-1 - FLT_EPSILON, 0), -1);
CHECK(nexttowardf(-1, 0), -1 + FLT_EPSILON/2);
CHECK(nexttowardf(-1 + FLT_EPSILON/2, -2), -1);
}
ATF_TC(nexttowardl);
ATF_TC_HEAD(nexttowardl, tc)
{
atf_tc_set_md_var(tc, "descr", "nexttowardl");
}
ATF_TC_BODY(nexttowardl, tc)
{
CHECK(nexttowardl(1, 2), 1 + LDBL_EPSILON);
CHECK(nexttowardl(1 + LDBL_EPSILON, 0), 1);
CHECK(nexttowardl(1, 0), 1 - LDBL_EPSILON/2);
CHECK(nexttowardl(1 - LDBL_EPSILON/2, 2), 1);
CHECK(nexttowardl(-1, -2), -1 - LDBL_EPSILON);
CHECK(nexttowardl(-1 - LDBL_EPSILON, 0), -1);
CHECK(nexttowardl(-1, 0), -1 + LDBL_EPSILON/2);
CHECK(nexttowardl(-1 + LDBL_EPSILON/2, -2), -1);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, nextafter);
ATF_TP_ADD_TC(tp, nextafterf);
ATF_TP_ADD_TC(tp, nextafterl);
ATF_TP_ADD_TC(tp, nexttoward);
ATF_TP_ADD_TC(tp, nexttowardf);
ATF_TP_ADD_TC(tp, nexttowardl);
return atf_no_error();
}