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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.
*/
#ifndef DK4FPE_H_INCLUDED
/** Avoid multiple inclusions. */
#define DK4FPE_H_INCLUDED 1
#line 9 "dk4fpe.ctr"
/** @file dk4fpe.h Floating point exceptions.
Note: Including this file disables optimization of
floating point operations by use of compiler pragma directives.
Use only in those modules in which you want to check for
floating point exceptions.
This header file should be the last file included by a module.
*/
/* Pragmas differ on Windows and Unix/Linux to prevent optimization
of floating point operations.
At least one compiler bails out with error message for unknown
pragma directives.
*/
#ifndef _WIN32
/* +++ !Windows */
#ifdef __SUNPRO_C
/* +++ !Windows, SUN workshop compiler */
#if __SUNPRO_C > 0x570
#pragma STDC FENV_ACCESS on
#endif
/* --- !Windows, SUN workshop compiler */
#else
/* +++ !Windows, ! SUN workshop compiler */
#pragma STDC FENV_ACCESS on
/* --- !Windows, ! SUN workshop compiler */
#endif
/* --- !Windows */
#endif
#ifndef DK4CONF_H_INCLUDED
#include "dk4conf.h"
#endif
#ifndef DK4TYPES_H_INCLUDED
#include "dk4types.h"
#endif
#if DK4_HAVE_MATH_H
#ifndef MATH_H_INCLUDED
#ifdef _WIN32
#define _USE_MATH_DEFINES 1
#endif
#include <math.h>
#define MATH_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_FLOAT_H
#ifndef FLOAT_H_INCLUDED
#include <float.h>
#define FLOAT_H_INCLUDED 1
#endif
#endif
#ifndef _WIN32
#if DK4_HAVE_FENV_H
#ifndef FENV_H_INCLUDED
#include <fenv.h>
#define FENV_H_INCLUDED 1
#endif
#endif
#endif
#ifndef DK4ERROR_H_INCLUDED
#include "dk4error.h"
#endif
#ifdef _WIN32
/* +++ Windows */
#pragma fenv_access (on)
/* --- Windows */
#endif
#ifdef _WIN32
/** Floating point exception set.
*/
typedef unsigned int dk4_fpe_t;
#else
/** Floating point exception set.
*/
typedef int dk4_fpe_t;
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Check floating point exception set for errors occured.
@param fpe Floating point exception set.
@param erp Error report, may be NULL.
@return 1 if error exceptions are set, 0 if there is no
error condition.
Error codes:
* DK4_E_MATH_INVALID<br>
if an invalid operation was performed,
* DK4_E_MATH_DIVZERO<br>
if a division by zero (or small denominator) occured,
* DK4_E_MATH_OVERFLOW<br>
if a range overflow occured (result too large),
* DK4_E_MATH_UNDERFLOW<br>
if a range underflow occured (result too small).
*/
int
dk4fpe_check_error(dk4_fpe_t fpe, dk4_er_t *erp);
/** Clear floating point exceptions.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
* DK4_E_NOT_SUPPORTED<br>
if no functions for floating point exceptions are available,
* DK4_E_SYSTEM<br>
if the feclearexcept() function indicated an error.
*/
int
dk4fpe_clear(dk4_er_t *erp);
/** Obtain floating point exceptions.
@param dptr Address of destination variable to store result.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
* DK4_E_INVALID_ARGUMENTS<br>
if dptr is NULL,
* DK4_E_NOT_SUPPORTED<br>
if no functions for floating point exceptions are available.
*/
int
dk4fpe_get(dk4_fpe_t *dptr, dk4_er_t *erp);
/** Obtain and clear floating point exceptions.
@param dptr Address of destination variable to store result.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
* DK4_E_INVALID_ARGUMENTS<br>
if dptr is NULL,
* DK4_E_NOT_SUPPORTED<br>
if no functions for floating point exceptions are available,
* DK4_E_SYSTEM<br>
if the feclearexcept() function indicated an error.
*/
int
dk4fpe_get_clear(dk4_fpe_t *dptr, dk4_er_t *erp);
/** Check a double value whether or not it is a finite number
(not +/- INF, not NaN).
@param d Value to check.
@return 1 on success, 0 on error.
*/
int
dk4fpe_is_finite(double d) ;
/** Check a double value whether or not it is a normalized number
(not +/- INF, not NaN, not denormalized).
@param d Value to check.
@return 1 on success, 0 on error.
*/
int
dk4fpe_is_normal(double d);
#ifdef __cplusplus
}
#endif
#endif
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