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minix/tests/lib/libm/t_exp.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework 
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

706 lines
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C
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/* $NetBSD: t_exp.c,v 1.3 2013/04/09 11:42:56 isaki 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 <atf-c.h>
#include <math.h>
/* y = exp(x) */
static const struct {
double x;
double y;
double e;
} exp_values[] = {
{ -10, 0.4539992976248485e-4, 1e-4, },
{ -5, 0.6737946999085467e-2, 1e-2, },
{ -1, 0.3678794411714423, 1e-1, },
{ -0.1, 0.9048374180359595, 1e-1, },
{ 0, 1.0000000000000000, 1, },
{ 0.1, 1.1051709180756477, 1, },
{ 1, 2.7182818284590452, 1, },
{ 5, 148.41315910257660, 1e2, },
{ 10, 22026.465794806718, 1e4, },
};
/*
* exp2(3)
*/
ATF_TC(exp2_nan);
ATF_TC_HEAD(exp2_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(NaN) == NaN");
}
ATF_TC_BODY(exp2_nan, tc)
{
#ifndef __vax__
const double x = 0.0L / 0.0L;
if (isnan(exp2(x)) == 0)
atf_tc_fail_nonfatal("exp2(NaN) != NaN");
#endif
}
ATF_TC(exp2_inf_neg);
ATF_TC_HEAD(exp2_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(-Inf) == +0.0");
}
ATF_TC_BODY(exp2_inf_neg, tc)
{
#ifndef __vax__
const double x = -1.0L / 0.0L;
double y = exp2(x);
if (fabs(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp2(-Inf) != +0.0");
#endif
}
ATF_TC(exp2_inf_pos);
ATF_TC_HEAD(exp2_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(+Inf) == +Inf");
}
ATF_TC_BODY(exp2_inf_pos, tc)
{
#ifndef __vax__
const double x = 1.0L / 0.0L;
double y = exp2(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp2(+Inf) != +Inf");
#endif
}
ATF_TC(exp2_product);
ATF_TC_HEAD(exp2_product, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(x + y) == exp2(x) * exp2(y)");
}
ATF_TC_BODY(exp2_product, tc)
{
#ifndef __vax__
const double x[] = { 0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8 };
const double y[] = { 8.8, 7.7, 6.6, 5.5, 4.4, 3.3, 2.2, 1.1, 0.0 };
const double eps = 1.0e-11;
size_t i;
for (i = 0; i < __arraycount(x); i++) {
if (fabs(exp2(x[i] + y[i]) - (exp2(x[i]) * exp2(y[i]))) > eps)
atf_tc_fail_nonfatal("exp2(%0.01f + %0.01f) != exp2("
"%0.01f) * exp2(%0.01f)", x[i], y[i], x[i], y[i]);
}
#endif
}
ATF_TC(exp2_zero_neg);
ATF_TC_HEAD(exp2_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(-0.0) == 1.0");
}
ATF_TC_BODY(exp2_zero_neg, tc)
{
#ifndef __vax__
const double x = -0.0L;
if (fabs(exp2(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp2(-0.0) != 1.0");
#endif
}
ATF_TC(exp2_zero_pos);
ATF_TC_HEAD(exp2_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2(+0.0) == 1.0");
}
ATF_TC_BODY(exp2_zero_pos, tc)
{
#ifndef __vax__
const double x = 0.0L;
if (fabs(exp2(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp2(+0.0) != 1.0");
#endif
}
/*
* exp2f(3)
*/
ATF_TC(exp2f_nan);
ATF_TC_HEAD(exp2f_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(NaN) == NaN");
}
ATF_TC_BODY(exp2f_nan, tc)
{
#ifndef __vax__
const float x = 0.0L / 0.0L;
if (isnan(exp2f(x)) == 0)
atf_tc_fail_nonfatal("exp2f(NaN) != NaN");
#endif
}
ATF_TC(exp2f_inf_neg);
ATF_TC_HEAD(exp2f_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(-Inf) == +0.0");
}
ATF_TC_BODY(exp2f_inf_neg, tc)
{
#ifndef __vax__
const float x = -1.0L / 0.0L;
float y = exp2f(x);
if (fabsf(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp2f(-Inf) != +0.0");
#endif
}
ATF_TC(exp2f_inf_pos);
ATF_TC_HEAD(exp2f_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(+Inf) == +Inf");
}
ATF_TC_BODY(exp2f_inf_pos, tc)
{
#ifndef __vax__
const float x = 1.0L / 0.0L;
float y = exp2f(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp2f(+Inf) != +Inf");
#endif
}
ATF_TC(exp2f_product);
ATF_TC_HEAD(exp2f_product, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(x+y) == exp2f(x) * exp2f(y)");
}
ATF_TC_BODY(exp2f_product, tc)
{
#ifndef __vax__
const float x[] = { 0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8 };
const float y[] = { 8.8, 7.7, 6.6, 5.5, 4.4, 3.3, 2.2, 1.1, 0.0 };
const float eps = 1.0e-2;
size_t i;
for (i = 0; i < __arraycount(x); i++) {
if (fabsf(exp2f(x[i] + y[i]) -
(exp2f(x[i]) * exp2f(y[i]))) > eps)
atf_tc_fail_nonfatal("exp2f(%0.01f + %0.01f) != exp2f("
"%0.01f) * exp2f(%0.01f)", x[i], y[i], x[i], y[i]);
}
#endif
}
ATF_TC(exp2f_zero_neg);
ATF_TC_HEAD(exp2f_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(-0.0) == 1.0");
}
ATF_TC_BODY(exp2f_zero_neg, tc)
{
#ifndef __vax__
const float x = -0.0L;
if (fabsf(exp2f(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp2f(-0.0) != 1.0");
#endif
}
ATF_TC(exp2f_zero_pos);
ATF_TC_HEAD(exp2f_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp2f(+0.0) == 1.0");
}
ATF_TC_BODY(exp2f_zero_pos, tc)
{
#ifndef __vax__
const float x = 0.0L;
if (fabsf(exp2f(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp2f(+0.0) != 1.0");
#endif
}
/*
* exp(3)
*/
ATF_TC(exp_nan);
ATF_TC_HEAD(exp_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp(NaN) == NaN");
}
ATF_TC_BODY(exp_nan, tc)
{
#ifndef __vax__
const double x = 0.0L / 0.0L;
if (isnan(exp(x)) == 0)
atf_tc_fail_nonfatal("exp(NaN) != NaN");
#endif
}
ATF_TC(exp_inf_neg);
ATF_TC_HEAD(exp_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp(-Inf) == +0.0");
}
ATF_TC_BODY(exp_inf_neg, tc)
{
#ifndef __vax__
const double x = -1.0L / 0.0L;
double y = exp(x);
if (fabs(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp(-Inf) != +0.0");
#endif
}
ATF_TC(exp_inf_pos);
ATF_TC_HEAD(exp_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp(+Inf) == +Inf");
}
ATF_TC_BODY(exp_inf_pos, tc)
{
#ifndef __vax__
const double x = 1.0L / 0.0L;
double y = exp(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("exp(+Inf) != +Inf");
#endif
}
ATF_TC(exp_product);
ATF_TC_HEAD(exp_product, tc)
{
atf_tc_set_md_var(tc, "descr", "Test some selected exp(x)");
}
ATF_TC_BODY(exp_product, tc)
{
#ifndef __vax__
double eps;
double x;
double y;
size_t i;
for (i = 0; i < __arraycount(exp_values); i++) {
x = exp_values[i].x;
y = exp_values[i].y;
eps = 1e-15 * exp_values[i].e;
if (fabs(exp(x) - y) > eps)
atf_tc_fail_nonfatal("exp(%0.01f) != %18.18e", x, y);
}
#endif
}
ATF_TC(exp_zero_neg);
ATF_TC_HEAD(exp_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp(-0.0) == 1.0");
}
ATF_TC_BODY(exp_zero_neg, tc)
{
#ifndef __vax__
const double x = -0.0L;
if (fabs(exp(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp(-0.0) != 1.0");
#endif
}
ATF_TC(exp_zero_pos);
ATF_TC_HEAD(exp_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test exp(+0.0) == 1.0");
}
ATF_TC_BODY(exp_zero_pos, tc)
{
#ifndef __vax__
const double x = 0.0L;
if (fabs(exp(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("exp(+0.0) != 1.0");
#endif
}
/*
* expf(3)
*/
ATF_TC(expf_nan);
ATF_TC_HEAD(expf_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expf(NaN) == NaN");
}
ATF_TC_BODY(expf_nan, tc)
{
#ifndef __vax__
const float x = 0.0L / 0.0L;
if (isnan(expf(x)) == 0)
atf_tc_fail_nonfatal("expf(NaN) != NaN");
#endif
}
ATF_TC(expf_inf_neg);
ATF_TC_HEAD(expf_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expf(-Inf) == +0.0");
}
ATF_TC_BODY(expf_inf_neg, tc)
{
#ifndef __vax__
const float x = -1.0L / 0.0L;
float y = expf(x);
if (fabsf(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expf(-Inf) != +0.0");
#endif
}
ATF_TC(expf_inf_pos);
ATF_TC_HEAD(expf_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expf(+Inf) == +Inf");
}
ATF_TC_BODY(expf_inf_pos, tc)
{
#ifndef __vax__
const float x = 1.0L / 0.0L;
float y = expf(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expf(+Inf) != +Inf");
#endif
}
ATF_TC(expf_product);
ATF_TC_HEAD(expf_product, tc)
{
atf_tc_set_md_var(tc, "descr", "Test some selected expf(x)");
}
ATF_TC_BODY(expf_product, tc)
{
#ifndef __vax__
float eps;
float x;
float y;
size_t i;
for (i = 0; i < __arraycount(exp_values); i++) {
x = exp_values[i].x;
y = exp_values[i].y;
eps = 1e-6 * exp_values[i].e;
if (fabsf(expf(x) - y) > eps)
atf_tc_fail_nonfatal("expf(%0.01f) != %18.18e", x, y);
}
#endif
}
ATF_TC(expf_zero_neg);
ATF_TC_HEAD(expf_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expf(-0.0) == 1.0");
}
ATF_TC_BODY(expf_zero_neg, tc)
{
#ifndef __vax__
const float x = -0.0L;
if (fabsf(expf(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("expf(-0.0) != 1.0");
#endif
}
ATF_TC(expf_zero_pos);
ATF_TC_HEAD(expf_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expf(+0.0) == 1.0");
}
ATF_TC_BODY(expf_zero_pos, tc)
{
#ifndef __vax__
const float x = 0.0L;
if (fabsf(expf(x) - 1.0) > 0.0)
atf_tc_fail_nonfatal("expf(+0.0) != 1.0");
#endif
}
/*
* expm1(3)
*/
ATF_TC(expm1_nan);
ATF_TC_HEAD(expm1_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1(NaN) == NaN");
}
ATF_TC_BODY(expm1_nan, tc)
{
#ifndef __vax__
const double x = 0.0L / 0.0L;
if (isnan(expm1(x)) == 0)
atf_tc_fail_nonfatal("expm1(NaN) != NaN");
#endif
}
ATF_TC(expm1_inf_neg);
ATF_TC_HEAD(expm1_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1(-Inf) == -1");
}
ATF_TC_BODY(expm1_inf_neg, tc)
{
#ifndef __vax__
const double x = -1.0L / 0.0L;
if (expm1(x) != -1.0)
atf_tc_fail_nonfatal("expm1(-Inf) != -1.0");
#endif
}
ATF_TC(expm1_inf_pos);
ATF_TC_HEAD(expm1_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1(+Inf) == +Inf");
}
ATF_TC_BODY(expm1_inf_pos, tc)
{
#ifndef __vax__
const double x = 1.0L / 0.0L;
double y = expm1(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expm1(+Inf) != +Inf");
#endif
}
ATF_TC(expm1_zero_neg);
ATF_TC_HEAD(expm1_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1(-0.0) == -0.0");
}
ATF_TC_BODY(expm1_zero_neg, tc)
{
#ifndef __vax__
const double x = -0.0L;
double y = expm1(x);
if (fabs(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("expm1(-0.0) != -0.0");
#endif
}
ATF_TC(expm1_zero_pos);
ATF_TC_HEAD(expm1_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1(+0.0) == 1.0");
}
ATF_TC_BODY(expm1_zero_pos, tc)
{
#ifndef __vax__
const double x = 0.0L;
double y = expm1(x);
if (fabs(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expm1(+0.0) != +0.0");
#endif
}
/*
* expm1f(3)
*/
ATF_TC(expm1f_nan);
ATF_TC_HEAD(expm1f_nan, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1f(NaN) == NaN");
}
ATF_TC_BODY(expm1f_nan, tc)
{
#ifndef __vax__
const float x = 0.0L / 0.0L;
if (isnan(expm1f(x)) == 0)
atf_tc_fail_nonfatal("expm1f(NaN) != NaN");
#endif
}
ATF_TC(expm1f_inf_neg);
ATF_TC_HEAD(expm1f_inf_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1f(-Inf) == -1");
}
ATF_TC_BODY(expm1f_inf_neg, tc)
{
#ifndef __vax__
const float x = -1.0L / 0.0L;
if (expm1f(x) != -1.0)
atf_tc_fail_nonfatal("expm1f(-Inf) != -1.0");
#endif
}
ATF_TC(expm1f_inf_pos);
ATF_TC_HEAD(expm1f_inf_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1f(+Inf) == +Inf");
}
ATF_TC_BODY(expm1f_inf_pos, tc)
{
#ifndef __vax__
const float x = 1.0L / 0.0L;
float y = expm1f(x);
if (isinf(y) == 0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expm1f(+Inf) != +Inf");
#endif
}
ATF_TC(expm1f_zero_neg);
ATF_TC_HEAD(expm1f_zero_neg, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1f(-0.0) == -0.0");
}
ATF_TC_BODY(expm1f_zero_neg, tc)
{
#ifndef __vax__
const float x = -0.0L;
float y = expm1f(x);
if (fabsf(y) > 0.0 || signbit(y) == 0)
atf_tc_fail_nonfatal("expm1f(-0.0) != -0.0");
#endif
}
ATF_TC(expm1f_zero_pos);
ATF_TC_HEAD(expm1f_zero_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Test expm1f(+0.0) == 1.0");
}
ATF_TC_BODY(expm1f_zero_pos, tc)
{
#ifndef __vax__
const float x = 0.0L;
float y = expm1f(x);
if (fabsf(y) > 0.0 || signbit(y) != 0)
atf_tc_fail_nonfatal("expm1f(+0.0) != +0.0");
#endif
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, exp2_nan);
ATF_TP_ADD_TC(tp, exp2_inf_neg);
ATF_TP_ADD_TC(tp, exp2_inf_pos);
ATF_TP_ADD_TC(tp, exp2_product);
ATF_TP_ADD_TC(tp, exp2_zero_neg);
ATF_TP_ADD_TC(tp, exp2_zero_pos);
ATF_TP_ADD_TC(tp, exp2f_nan);
ATF_TP_ADD_TC(tp, exp2f_inf_neg);
ATF_TP_ADD_TC(tp, exp2f_inf_pos);
ATF_TP_ADD_TC(tp, exp2f_product);
ATF_TP_ADD_TC(tp, exp2f_zero_neg);
ATF_TP_ADD_TC(tp, exp2f_zero_pos);
ATF_TP_ADD_TC(tp, exp_nan);
ATF_TP_ADD_TC(tp, exp_inf_neg);
ATF_TP_ADD_TC(tp, exp_inf_pos);
ATF_TP_ADD_TC(tp, exp_product);
ATF_TP_ADD_TC(tp, exp_zero_neg);
ATF_TP_ADD_TC(tp, exp_zero_pos);
ATF_TP_ADD_TC(tp, expf_nan);
ATF_TP_ADD_TC(tp, expf_inf_neg);
ATF_TP_ADD_TC(tp, expf_inf_pos);
ATF_TP_ADD_TC(tp, expf_product);
ATF_TP_ADD_TC(tp, expf_zero_neg);
ATF_TP_ADD_TC(tp, expf_zero_pos);
ATF_TP_ADD_TC(tp, expm1_nan);
ATF_TP_ADD_TC(tp, expm1_inf_neg);
ATF_TP_ADD_TC(tp, expm1_inf_pos);
ATF_TP_ADD_TC(tp, expm1_zero_neg);
ATF_TP_ADD_TC(tp, expm1_zero_pos);
ATF_TP_ADD_TC(tp, expm1f_nan);
ATF_TP_ADD_TC(tp, expm1f_inf_neg);
ATF_TP_ADD_TC(tp, expm1f_inf_pos);
ATF_TP_ADD_TC(tp, expm1f_zero_neg);
ATF_TP_ADD_TC(tp, expm1f_zero_pos);
return atf_no_error();
}
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