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/*
* @file
* @brief Test suite for fenv.h methods
*/
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2020 Eshan Dhawan
* Copyright (C) 2019 Vaibhav Gupta
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* header files are listed in lexical/lexicographical/alphabetical order */
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <fenv.h> /* contains declarations of fenv methods */
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <rtems/test.h>
#include <tmacros.h>
#include <float.h>
const char rtems_test_name[] = "PSXFENV 01";
/* forward declarations to avoid warnings */
rtems_task Init( rtems_task_argument ignored );
/* Test Function Begins */
rtems_task Init(rtems_task_argument ignored)
{
double a, b, c;
int r;
fexcept_t excepts;
TEST_BEGIN();
/*
* 'FE_ALL_EXCEPT' will be defined only when 'feclearexcept()',
* fegetexceptflag() , feraiseexcept(), fesetexceptflag() and
* fetestexcept() functions are supported by the architecture.
* Hence their testcases can be wrapped under #ifdef and #endif.
*/
#ifdef FE_ALL_EXCEPT /* floating-point exceptions */
r = fesetenv( FE_DFL_ENV );
if ( r ) {
printf( "fesetenv ==> %d\n", r);
}
rtems_test_assert( r == 0 );
/* Test feclearexcept() and fetestexcept() in one go. */
r = feclearexcept( FE_ALL_EXCEPT );
if ( r ) {
printf( "feclearexcept ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
r = fetestexcept( FE_ALL_EXCEPT );
if ( r ) {
printf( "fetestexcept ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
/* Test 'FE_DIVBYZERO'
* Divide by zero and confirm fetestexcept() */
a = 0.0;
b = 1.0;
c = b/a;
(void) c;
/* Test fegetexceptflag() and fesetexceptflag() */
r = fegetexceptflag( &excepts, FE_ALL_EXCEPT );
if ( r ) {
printf( "fegetexceptflag ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
r = fesetexceptflag( &excepts, FE_ALL_EXCEPT );
if ( r ) {
printf( "fesetexceptflag ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
/* Test for fegetround() and fesetround()
* They have four main macros to be tested separated by ifdef
* Since not all architectures support them
* The test case gets and sets the rounding directions */
#ifdef FE_TONEAREST /* Rounding direction TONEAREST */
rtems_test_assert( fegetround() == FE_TONEAREST );
#endif /*rounding direction TONEAREST */
#ifdef FE_TOWARDZERO /* rounding direction TOWARDZERO */
r = fesetround( FE_TOWARDZERO );
if ( r ) {
printf( "fesetround ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
rtems_test_assert( fegetround() == FE_TOWARDZERO );
#endif/*rounding direction TOWARDZERO */
#ifdef FE_DOWNWARD /* rounding direction DOWNWARD */
r = fesetround( FE_DOWNWARD );
if ( r ) {
printf( "fesetround ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
rtems_test_assert( fegetround() == FE_DOWNWARD );
#endif /* rounding direction DOWNWARD */
#ifdef FE_UPWARD /* rounding direction UPWARD */
r = fesetround( FE_UPWARD );
if ( r ) {
printf( "fesetround ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
rtems_test_assert( fegetround() == FE_UPWARD );
#endif /* rounding direction upward */
#ifdef FE_TONEAREST /* rounding direction TONEAREST */
r = fesetround( FE_TONEAREST );
if ( r ) {
printf( "fesetround ==> 0x%x\n", r );
}
rtems_test_assert( r == 0 );
#endif /* rounding direction TONEAREST */
#ifdef FE_DIVBYZERO /* divide by zero exeption */
r = feraiseexcept( FE_DIVBYZERO ) ;
rtems_test_assert( fetestexcept( FE_DIVBYZERO ) );
#endif /* divide by zero exeption */
/* Test 'FE_INEXACT' */
a = 10.0;
c = b/a;
#endif /* floating-point exceptions */
TEST_END();
rtems_test_exit(0);
}
/* NOTICE: the clock driver is explicitly disabled */
#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 6
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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