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/*
WARNING: This file was generated by dkct.
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4fpe.ctr
*/
/*
Copyright (C) 2016-2017, Dirk Krause
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
to endorse or promote products derived from this software without specific
prior written permission.
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.
*/
/** @file dk4fpe.c The dk4fpe module.
*/
#line 200 "dk4fpe.ctr"
#include "dk4fpe.h"
#ifdef _WIN32
/** Exception set for errors.
*/
static const unsigned int dk4fpe_errors =
_SW_ZERODIVIDE | _SW_INVALID | _SW_OVERFLOW | _SW_UNDERFLOW;
#else
/** Exception set for errors.
*/
static const int dk4fpe_errors =
FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW;
#endif
int
dk4fpe_check_error(dk4_fpe_t fpe, dk4_er_t *erp)
{
int back = 0;
if ((dk4_fpe_t)0 != (dk4fpe_errors & fpe)) {
back = 1;
#ifdef _WIN32
if ((dk4_fpe_t)0 != (_SW_INVALID & fpe))
#else
if ((dk4_fpe_t)0 != (FE_INVALID & fpe))
#endif
{
dk4error_set_simple_error_code(erp, DK4_E_MATH_INVALID);
}
else
{
#ifdef _WIN32
if ((dk4_fpe_t)0 != (_SW_ZERODIVIDE & fpe))
#else
if ((dk4_fpe_t)0 != (FE_DIVBYZERO & fpe))
#endif
{
dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO);
}
else
{
#ifdef _WIN32
if ((dk4_fpe_t)0 != (_SW_OVERFLOW & fpe))
#else
if ((dk4_fpe_t)0 != (FE_OVERFLOW & fpe))
#endif
{
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
else
{
#ifdef _WIN32
if ((dk4_fpe_t)0 != (_SW_UNDERFLOW & fpe))
#else
if ((dk4_fpe_t)0 != (FE_UNDERFLOW & fpe))
#endif
{
dk4error_set_simple_error_code(erp, DK4_E_MATH_UNDERFLOW);
}
}
}
}
}
return back;
}
int
dk4fpe_clear(dk4_er_t *erp)
{
#ifdef _WIN32
_clearfp();
return 1;
#else
#if DK4_HAVE_FETESTEXCEPT
int back = 0;
if (0 == feclearexcept(FE_ALL_EXCEPT)) {
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYSTEM);
}
return back;
#else
dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
return 0;
#endif
#endif
}
int
dk4fpe_get(dk4_fpe_t *dptr, dk4_er_t *erp)
{
int back = 0;
if (NULL != dptr) {
#ifdef _WIN32
*dptr = (dk4_fpe_t)_statusfp();
back = 1;
#else
#if DK4_HAVE_FETESTEXCEPT
*dptr = (dk4_fpe_t)fetestexcept(FE_ALL_EXCEPT);
back = 1;
#else
dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
#endif
#endif
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
int
dk4fpe_get_clear(dk4_fpe_t *dptr, dk4_er_t *erp)
{
int back = 0;
if (NULL != dptr) {
#ifdef _WIN32
*dptr = _clearfp();
back = 1;
#else
#if DK4_HAVE_FETESTEXCEPT
*dptr = (dk4_fpe_t)fetestexcept(FE_ALL_EXCEPT);
if (0 == feclearexcept(FE_ALL_EXCEPT)) {
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYSTEM);
}
#else
dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
#endif
#endif
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
int
dk4fpe_is_finite(double d)
{
int back = 0;
#ifdef _WIN32
back = ((0 != _finite(d)) ? 1 : 0);
#else
back = ((0 != isfinite(d)) ? 1 : 0);
#endif
return back;
}
int
dk4fpe_is_normal(double d)
{
int back = 0;
#ifdef _WIN32
switch (_fpclass(d)) {
case _FPCLASS_NN : case _FPCLASS_NZ :
case _FPCLASS_PZ : case _FPCLASS_PN :
{
back = 1;
} break;
}
#else
back = ((0 != isnormal(d)) ? 1 : 0);
#endif
return back;
}
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