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minix/tests/lib/libm/t_sqrt.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC) 
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

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/* $NetBSD: t_sqrt.c,v 1.5 2013/11/22 17:19:14 martin Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* 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_sqrt.c,v 1.5 2013/11/22 17:19:14 martin Exp $");
#include <atf-c.h>
#include <math.h>
#include <float.h>
#include <stdio.h>
/*
* sqrt(3)
*/
ATF_TC(sqrt_nan);
ATF_TC_HEAD(sqrt_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(NaN) == NaN");
}
ATF_TC_BODY(sqrt_nan, tc)
{
#ifndef __vax__
const double x = 0.0L / 0.0L;
ATF_CHECK(isnan(x) != 0);
ATF_CHECK(isnan(sqrt(x)) != 0);
#endif
}
ATF_TC(sqrt_pow);
ATF_TC_HEAD(sqrt_pow, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(3) vs. pow(3)");
}
ATF_TC_BODY(sqrt_pow, tc)
{
#ifndef __vax__
const double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.9999 };
const double eps = 1.0e-40;
double y, z;
size_t i;
for (i = 0; i < __arraycount(x); i++) {
y = sqrt(x[i]);
z = pow(x[i], 1.0 / 2.0);
if (fabs(y - z) > eps)
atf_tc_fail_nonfatal("sqrt(%0.03f) != "
"pow(%0.03f, 1/2)\n", x[i], x[i]);
}
#endif
}
ATF_TC(sqrt_inf_neg);
ATF_TC_HEAD(sqrt_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(-Inf) == NaN");
}
ATF_TC_BODY(sqrt_inf_neg, tc)
{
#ifndef __vax__
const double x = -1.0L / 0.0L;
double y = sqrt(x);
ATF_CHECK(isnan(y) != 0);
#endif
}
ATF_TC(sqrt_inf_pos);
ATF_TC_HEAD(sqrt_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(+Inf) == +Inf");
}
ATF_TC_BODY(sqrt_inf_pos, tc)
{
#ifndef __vax__
const double x = 1.0L / 0.0L;
double y = sqrt(x);
ATF_CHECK(isinf(y) != 0);
ATF_CHECK(signbit(y) == 0);
#endif
}
ATF_TC(sqrt_zero_neg);
ATF_TC_HEAD(sqrt_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(-0.0) == -0.0");
}
ATF_TC_BODY(sqrt_zero_neg, tc)
{
#ifndef __vax__
const double x = -0.0L;
double y = sqrt(x);
if (fabs(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("sqrt(-0.0) != -0.0");
#endif
}
ATF_TC(sqrt_zero_pos);
ATF_TC_HEAD(sqrt_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrt(+0.0) == +0.0");
}
ATF_TC_BODY(sqrt_zero_pos, tc)
{
#ifndef __vax__
const double x = 0.0L;
double y = sqrt(x);
if (fabs(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("sqrt(+0.0) != +0.0");
#endif
}
/*
* sqrtf(3)
*/
ATF_TC(sqrtf_nan);
ATF_TC_HEAD(sqrtf_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(NaN) == NaN");
}
ATF_TC_BODY(sqrtf_nan, tc)
{
#ifndef __vax__
const float x = 0.0L / 0.0L;
ATF_CHECK(isnan(x) != 0);
ATF_CHECK(isnan(sqrtf(x)) != 0);
#endif
}
ATF_TC(sqrtf_powf);
ATF_TC_HEAD(sqrtf_powf, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(3) vs. powf(3)");
}
ATF_TC_BODY(sqrtf_powf, tc)
{
#ifndef __vax__
const float x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.9999 };
const float eps = 1.0e-30;
volatile float y, z;
size_t i;
for (i = 0; i < __arraycount(x); i++) {
y = sqrtf(x[i]);
z = powf(x[i], 1.0 / 2.0);
if (fabsf(y - z) > eps)
atf_tc_fail_nonfatal("sqrtf(%0.03f) != "
"powf(%0.03f, 1/2)\n", x[i], x[i]);
}
#endif
}
ATF_TC(sqrtf_inf_neg);
ATF_TC_HEAD(sqrtf_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(-Inf) == NaN");
}
ATF_TC_BODY(sqrtf_inf_neg, tc)
{
#ifndef __vax__
const float x = -1.0L / 0.0L;
float y = sqrtf(x);
ATF_CHECK(isnan(y) != 0);
#endif
}
ATF_TC(sqrtf_inf_pos);
ATF_TC_HEAD(sqrtf_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(+Inf) == +Inf");
}
ATF_TC_BODY(sqrtf_inf_pos, tc)
{
#ifndef __vax__
const float x = 1.0L / 0.0L;
float y = sqrtf(x);
ATF_CHECK(isinf(y) != 0);
ATF_CHECK(signbit(y) == 0);
#endif
}
ATF_TC(sqrtf_zero_neg);
ATF_TC_HEAD(sqrtf_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(-0.0) == -0.0");
}
ATF_TC_BODY(sqrtf_zero_neg, tc)
{
#ifndef __vax__
const float x = -0.0L;
float y = sqrtf(x);
if (fabsf(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("sqrtf(-0.0) != -0.0");
#endif
}
ATF_TC(sqrtf_zero_pos);
ATF_TC_HEAD(sqrtf_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtf(+0.0) == +0.0");
}
ATF_TC_BODY(sqrtf_zero_pos, tc)
{
#ifndef __vax__
const float x = 0.0L;
float y = sqrtf(x);
if (fabsf(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("sqrtf(+0.0) != +0.0");
#endif
}
/*
* sqrtl(3)
*/
ATF_TC(sqrtl_nan);
ATF_TC_HEAD(sqrtl_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(NaN) == NaN");
}
ATF_TC_BODY(sqrtl_nan, tc)
{
#ifndef __vax__
const long double x = 0.0L / 0.0L;
ATF_CHECK(isnan(x) != 0);
ATF_CHECK(isnan(sqrtl(x)) != 0);
#endif
}
ATF_TC(sqrtl_powl);
ATF_TC_HEAD(sqrtl_powl, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(3) vs. powl(3)");
}
ATF_TC_BODY(sqrtl_powl, tc)
{
#ifndef __vax__
const long double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.9999 };
const long double eps = 5.0*DBL_EPSILON; /* XXX powl == pow for now */
volatile long double y, z;
size_t i;
for (i = 0; i < __arraycount(x); i++) {
y = sqrtl(x[i]);
z = powl(x[i], 1.0 / 2.0);
if (fabsl(y - z) > eps)
atf_tc_fail_nonfatal("sqrtl(%0.03Lf) != "
"powl(%0.03Lf, 1/2)\n", x[i], x[i]);
}
#endif
}
ATF_TC(sqrtl_inf_neg);
ATF_TC_HEAD(sqrtl_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(-Inf) == NaN");
}
ATF_TC_BODY(sqrtl_inf_neg, tc)
{
#ifndef __vax__
const long double x = -1.0L / 0.0L;
long double y = sqrtl(x);
ATF_CHECK(isnan(y) != 0);
#endif
}
ATF_TC(sqrtl_inf_pos);
ATF_TC_HEAD(sqrtl_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(+Inf) == +Inf");
}
ATF_TC_BODY(sqrtl_inf_pos, tc)
{
#ifndef __vax__
const long double x = 1.0L / 0.0L;
long double y = sqrtl(x);
ATF_CHECK(isinf(y) != 0);
ATF_CHECK(signbit(y) == 0);
#endif
}
ATF_TC(sqrtl_zero_neg);
ATF_TC_HEAD(sqrtl_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(-0.0) == -0.0");
}
ATF_TC_BODY(sqrtl_zero_neg, tc)
{
#ifndef __vax__
const long double x = -0.0L;
long double y = sqrtl(x);
if (fabsl(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("sqrtl(-0.0) != -0.0");
#endif
}
ATF_TC(sqrtl_zero_pos);
ATF_TC_HEAD(sqrtl_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test sqrtl(+0.0) == +0.0");
}
ATF_TC_BODY(sqrtl_zero_pos, tc)
{
#ifndef __vax__
const long double x = 0.0L;
long double y = sqrtl(x);
if (fabsl(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("sqrtl(+0.0) != +0.0");
#endif
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, sqrt_nan);
ATF_TP_ADD_TC(tp, sqrt_pow);
ATF_TP_ADD_TC(tp, sqrt_inf_neg);
ATF_TP_ADD_TC(tp, sqrt_inf_pos);
ATF_TP_ADD_TC(tp, sqrt_zero_neg);
ATF_TP_ADD_TC(tp, sqrt_zero_pos);
ATF_TP_ADD_TC(tp, sqrtf_nan);
ATF_TP_ADD_TC(tp, sqrtf_powf);
ATF_TP_ADD_TC(tp, sqrtf_inf_neg);
ATF_TP_ADD_TC(tp, sqrtf_inf_pos);
ATF_TP_ADD_TC(tp, sqrtf_zero_neg);
ATF_TP_ADD_TC(tp, sqrtf_zero_pos);
ATF_TP_ADD_TC(tp, sqrtl_nan);
ATF_TP_ADD_TC(tp, sqrtl_powl);
ATF_TP_ADD_TC(tp, sqrtl_inf_neg);
ATF_TP_ADD_TC(tp, sqrtl_inf_pos);
ATF_TP_ADD_TC(tp, sqrtl_zero_neg);
ATF_TP_ADD_TC(tp, sqrtl_zero_pos);
return atf_no_error();
}
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