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Random.h
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RecursiveDirectoryIterator.h
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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++
//
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// FPEnvironment_WIN32.h
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//
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// Library: Foundation
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// Package: Core
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// Module: FPEnvironment
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//
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// Definitions of class FPEnvironmentImpl for WIN32.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_FPEnvironment_WIN32_INCLUDED
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#define Foundation_FPEnvironment_WIN32_INCLUDED
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#include "Poco/Foundation.h"
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#include <float.h>
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#include <math.h>
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#ifndef _SW_INEXACT
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# define _SW_INEXACT 0x00000001 // inexact (precision)
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#endif
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#ifndef _SW_UNDERFLOW
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# define _SW_UNDERFLOW 0x00000002 // underflow
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#endif
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#ifndef _SW_OVERFLOW
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# define _SW_OVERFLOW 0x00000004 // overflow
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#endif
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#ifndef _SW_ZERODIVIDE
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# define _SW_ZERODIVIDE 0x00000008 // zero divide
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#endif
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#ifndef _SW_INVALID
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# define _SW_INVALID 0x00000010 // invalid
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#endif
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#ifndef _SW_DENORMAL
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# define _SW_DENORMAL 0x00080000 // denormal status bit
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#endif
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namespace Poco {
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class Foundation_API FPEnvironmentImpl
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{
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protected:
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enum RoundingModeImpl
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{
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FP_ROUND_DOWNWARD_IMPL = _RC_DOWN,
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FP_ROUND_UPWARD_IMPL = _RC_UP,
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FP_ROUND_TONEAREST_IMPL = _RC_NEAR,
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FP_ROUND_TOWARDZERO_IMPL = _RC_CHOP
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};
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enum FlagImpl
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{
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FP_DIVIDE_BY_ZERO_IMPL = _SW_ZERODIVIDE,
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FP_INEXACT_IMPL = _SW_INEXACT,
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FP_OVERFLOW_IMPL = _SW_OVERFLOW,
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FP_UNDERFLOW_IMPL = _SW_UNDERFLOW,
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FP_INVALID_IMPL = _SW_INVALID
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};
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FPEnvironmentImpl();
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FPEnvironmentImpl(const FPEnvironmentImpl& env);
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~FPEnvironmentImpl();
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FPEnvironmentImpl& operator = (const FPEnvironmentImpl& env);
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void keepCurrentImpl();
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static void clearFlagsImpl();
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static bool isFlagImpl(FlagImpl flag);
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static void setRoundingModeImpl(RoundingModeImpl mode);
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static RoundingModeImpl getRoundingModeImpl();
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static bool isInfiniteImpl(float value);
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static bool isInfiniteImpl(double value);
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static bool isInfiniteImpl(long double value);
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static bool isNaNImpl(float value);
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static bool isNaNImpl(double value);
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static bool isNaNImpl(long double value);
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static float copySignImpl(float target, float source);
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static double copySignImpl(double target, double source);
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static long double copySignImpl(long double target, long double source);
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private:
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unsigned _env;
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};
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//
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// inlines
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//
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inline bool FPEnvironmentImpl::isInfiniteImpl(float value)
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{
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if (_isnan(value) != 0) return false;
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return _finite(value) == 0;
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}
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inline bool FPEnvironmentImpl::isInfiniteImpl(double value)
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{
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if (_isnan(value) != 0) return false;
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return _finite(value) == 0;
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}
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inline bool FPEnvironmentImpl::isInfiniteImpl(long double value)
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{
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if (_isnan(value) != 0) return false;
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return _finite(value) == 0;
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}
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inline bool FPEnvironmentImpl::isNaNImpl(float value)
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{
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return _isnan(value) != 0;
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}
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inline bool FPEnvironmentImpl::isNaNImpl(double value)
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{
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return _isnan(value) != 0;
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}
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inline bool FPEnvironmentImpl::isNaNImpl(long double value)
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{
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return _isnan(value) != 0;
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}
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inline float FPEnvironmentImpl::copySignImpl(float target, float source)
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{
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return float(_copysign(target, source));
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}
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inline double FPEnvironmentImpl::copySignImpl(double target, double source)
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{
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return _copysign(target, source);
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}
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inline long double FPEnvironmentImpl::copySignImpl(long double target, long double source)
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{
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return (source > 0 && target > 0) || (source < 0 && target < 0) ? target : -target;
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}
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} // namespace Poco
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#endif // Foundation_FPEnvironment_WIN32_INCLUDED
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