mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2025-07-30 04:31:48 +02:00
4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
154 lines
3.3 KiB
C++
154 lines
3.3 KiB
C++
//
|
|
// FPEnvironment_WIN32.h
|
|
//
|
|
// Library: Foundation
|
|
// Package: Core
|
|
// Module: FPEnvironment
|
|
//
|
|
// Definitions of class FPEnvironmentImpl for WIN32.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_FPEnvironment_WIN32_INCLUDED
|
|
#define Foundation_FPEnvironment_WIN32_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include <float.h>
|
|
#include <math.h>
|
|
|
|
#ifndef _SW_INEXACT
|
|
# define _SW_INEXACT 0x00000001 // inexact (precision)
|
|
#endif
|
|
#ifndef _SW_UNDERFLOW
|
|
# define _SW_UNDERFLOW 0x00000002 // underflow
|
|
#endif
|
|
#ifndef _SW_OVERFLOW
|
|
# define _SW_OVERFLOW 0x00000004 // overflow
|
|
#endif
|
|
#ifndef _SW_ZERODIVIDE
|
|
# define _SW_ZERODIVIDE 0x00000008 // zero divide
|
|
#endif
|
|
#ifndef _SW_INVALID
|
|
# define _SW_INVALID 0x00000010 // invalid
|
|
#endif
|
|
#ifndef _SW_DENORMAL
|
|
# define _SW_DENORMAL 0x00080000 // denormal status bit
|
|
#endif
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API FPEnvironmentImpl
|
|
{
|
|
protected:
|
|
enum RoundingModeImpl
|
|
{
|
|
FP_ROUND_DOWNWARD_IMPL = _RC_DOWN,
|
|
FP_ROUND_UPWARD_IMPL = _RC_UP,
|
|
FP_ROUND_TONEAREST_IMPL = _RC_NEAR,
|
|
FP_ROUND_TOWARDZERO_IMPL = _RC_CHOP
|
|
};
|
|
enum FlagImpl
|
|
{
|
|
FP_DIVIDE_BY_ZERO_IMPL = _SW_ZERODIVIDE,
|
|
FP_INEXACT_IMPL = _SW_INEXACT,
|
|
FP_OVERFLOW_IMPL = _SW_OVERFLOW,
|
|
FP_UNDERFLOW_IMPL = _SW_UNDERFLOW,
|
|
FP_INVALID_IMPL = _SW_INVALID
|
|
};
|
|
FPEnvironmentImpl();
|
|
FPEnvironmentImpl(const FPEnvironmentImpl& env);
|
|
~FPEnvironmentImpl();
|
|
FPEnvironmentImpl& operator = (const FPEnvironmentImpl& env);
|
|
void keepCurrentImpl();
|
|
static void clearFlagsImpl();
|
|
static bool isFlagImpl(FlagImpl flag);
|
|
static void setRoundingModeImpl(RoundingModeImpl mode);
|
|
static RoundingModeImpl getRoundingModeImpl();
|
|
static bool isInfiniteImpl(float value);
|
|
static bool isInfiniteImpl(double value);
|
|
static bool isInfiniteImpl(long double value);
|
|
static bool isNaNImpl(float value);
|
|
static bool isNaNImpl(double value);
|
|
static bool isNaNImpl(long double value);
|
|
static float copySignImpl(float target, float source);
|
|
static double copySignImpl(double target, double source);
|
|
static long double copySignImpl(long double target, long double source);
|
|
|
|
private:
|
|
unsigned _env;
|
|
};
|
|
|
|
|
|
//
|
|
// inlines
|
|
//
|
|
inline bool FPEnvironmentImpl::isInfiniteImpl(float value)
|
|
{
|
|
if (_isnan(value) != 0) return false;
|
|
return _finite(value) == 0;
|
|
}
|
|
|
|
|
|
inline bool FPEnvironmentImpl::isInfiniteImpl(double value)
|
|
{
|
|
if (_isnan(value) != 0) return false;
|
|
return _finite(value) == 0;
|
|
}
|
|
|
|
|
|
inline bool FPEnvironmentImpl::isInfiniteImpl(long double value)
|
|
{
|
|
if (_isnan(value) != 0) return false;
|
|
return _finite(value) == 0;
|
|
}
|
|
|
|
|
|
inline bool FPEnvironmentImpl::isNaNImpl(float value)
|
|
{
|
|
return _isnan(value) != 0;
|
|
}
|
|
|
|
|
|
inline bool FPEnvironmentImpl::isNaNImpl(double value)
|
|
{
|
|
return _isnan(value) != 0;
|
|
}
|
|
|
|
|
|
inline bool FPEnvironmentImpl::isNaNImpl(long double value)
|
|
{
|
|
return _isnan(value) != 0;
|
|
}
|
|
|
|
|
|
inline float FPEnvironmentImpl::copySignImpl(float target, float source)
|
|
{
|
|
return float(_copysign(target, source));
|
|
}
|
|
|
|
|
|
inline double FPEnvironmentImpl::copySignImpl(double target, double source)
|
|
{
|
|
return _copysign(target, source);
|
|
}
|
|
|
|
|
|
inline long double FPEnvironmentImpl::copySignImpl(long double target, long double source)
|
|
{
|
|
return (source > 0 && target > 0) || (source < 0 && target < 0) ? target : -target;
|
|
}
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_FPEnvironment_WIN32_INCLUDED
|