// // FPEnvironment_DUMMY.h // // Library: Foundation // Package: Core // Module: FPEnvironment // // Definition of class FPEnvironmentImpl for platforms that do not // support IEEE 754 extensions. // // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. // and Contributors. // // SPDX-License-Identifier: BSL-1.0 // #ifndef Foundation_FPEnvironment_DUMMY_INCLUDED #define Foundation_FPEnvironment_DUMMY_INCLUDED #include #include "Poco/Foundation.h" namespace Poco { class Foundation_API FPEnvironmentImpl { protected: enum RoundingModeImpl { FP_ROUND_DOWNWARD_IMPL, FP_ROUND_UPWARD_IMPL, FP_ROUND_TONEAREST_IMPL, FP_ROUND_TOWARDZERO_IMPL }; enum FlagImpl { FP_DIVIDE_BY_ZERO_IMPL, FP_INEXACT_IMPL, FP_OVERFLOW_IMPL, FP_UNDERFLOW_IMPL, FP_INVALID_IMPL }; 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: static RoundingModeImpl _roundingMode; }; // // inlines // inline bool FPEnvironmentImpl::isInfiniteImpl(float value) { return std::isinf(value) != 0; } inline bool FPEnvironmentImpl::isInfiniteImpl(double value) { return std::isinf(value) != 0; } inline bool FPEnvironmentImpl::isInfiniteImpl(long double value) { return std::isinf((double)value) != 0; } inline bool FPEnvironmentImpl::isNaNImpl(float value) { return std::isnan(value) != 0; } inline bool FPEnvironmentImpl::isNaNImpl(double value) { return std::isnan(value) != 0; } inline bool FPEnvironmentImpl::isNaNImpl(long double value) { return std::isnan((double)value) != 0; } inline float FPEnvironmentImpl::copySignImpl(float target, float source) { return copysignf(target, source); } inline double FPEnvironmentImpl::copySignImpl(double target, double source) { return copysign(target, source); } } // namespace Poco #endif // Foundation_FPEnvironment_DUMMY_INCLUDED