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/*
* Copyright (c) 2002-2006 Samit Basu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __IEEEFP_HPP__
#define __IEEEFP_HPP__
#include "Types.hpp"
bool IsInfinite(float t);
bool IsInfinite(double t);
bool IsInfinite(int8);
bool IsInfinite(int16);
bool IsInfinite(int32);
bool IsInfinite(int64);
bool IsInfinite(uint8);
bool IsInfinite(uint16);
bool IsInfinite(uint32);
bool IsInfinite(uint64);
bool IsNaN(int32 t);
bool IsNaN(int64 t);
bool IsNaN(uint32 t);
bool IsNaN(uint64 t);
bool IsNaN(double t);
bool IsFinite(float t);
bool IsFinite(double t);
bool IsFinite(int8);
bool IsFinite(int16);
bool IsFinite(int32);
bool IsFinite(int64);
bool IsFinite(uint8);
bool IsFinite(uint16);
bool IsFinite(uint32);
bool IsFinite(uint64);
QString ToHexString(float t);
QString ToHexString(double t);
double NaN(void);
double Inf(void);
#ifndef M_PI
#define M_PI 3.141592653589793
#endif
#include <float.h>
#include <math.h>
#if defined(_MSC_VER )
extern "C"{
__declspec( dllexport ) double rint (double x);
__declspec( dllexport ) float rintf (float x);
__declspec( dllexport ) double log1p(double x);
__declspec( dllexport ) double expm1 (double x);
// __declspec( dllexport ) double nextafter( double x, double y ) { return _nextafter( x, y ); }
__declspec( dllexport ) float nextafterf (float x, float y);
__declspec( dllexport ) float log1pf(float x);
__declspec( dllexport ) float expm1f(float x);
__declspec( dllexport ) float asinhf(float x);
__declspec( dllexport ) double asinh(double x);
__declspec( dllexport ) double acosh (double x);
__declspec( dllexport ) float acoshf (float x);
__declspec( dllexport ) double atanh(double x);
__declspec( dllexport ) float atanhf (float x);
}
#define nextafter _nextafter
#endif
//returns distance to the next nearest double value
inline double feps( double x ){
if (x >= 0)
return nextafter( x , DBL_MAX ) - x;
else
return x - nextafter( x, -DBL_MAX);
}
//returns distance to the next nearest float value
inline float fepsf( float x ){
if (x >= 0)
return nextafterf( x , FLT_MAX ) - x;
else
return x - nextafterf(x, -FLT_MAX);
}
#endif
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