fixes for QNX support

Foundation/src/FPEnvironment_QNX.cpp

@@ -0,0 +1,84 @@
+//
+// FPEnvironment_QNX.cpp
+//
+// $Id: //poco/1.4/Foundation/src/FPEnvironment_QNX.cpp#1 $
+//
+// Library: Foundation
+// Package: Core
+// Module:  FPEnvironment
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/FPEnvironment_QNX.h"
+
+
+namespace Poco {
+
+
+FPEnvironmentImpl::FPEnvironmentImpl()
+{
+	fegetenv(&_env);
+}
+
+
+FPEnvironmentImpl::FPEnvironmentImpl(const FPEnvironmentImpl& env)
+{
+	_env = env._env;
+}
+
+
+FPEnvironmentImpl::~FPEnvironmentImpl()
+{
+	fesetenv(&_env);
+}
+
+
+FPEnvironmentImpl& FPEnvironmentImpl::operator = (const FPEnvironmentImpl& env)
+{
+	_env = env._env;
+	return *this;
+}
+
+
+void FPEnvironmentImpl::keepCurrentImpl()
+{
+	fegetenv(&_env);
+}
+
+
+void FPEnvironmentImpl::clearFlagsImpl()
+{
+	feclearexcept(FE_ALL_EXCEPT);
+}
+
+
+bool FPEnvironmentImpl::isFlagImpl(FlagImpl flag)
+{
+	return fetestexcept(flag) != 0;
+}
+
+
+void FPEnvironmentImpl::setRoundingModeImpl(RoundingModeImpl mode)
+{
+	fesetround(mode);
+}
+
+
+FPEnvironmentImpl::RoundingModeImpl FPEnvironmentImpl::getRoundingModeImpl()
+{
+	return (RoundingModeImpl) fegetround();
+}
+
+
+long double FPEnvironmentImpl::copySignImpl(long double target, long double source)
+{
+	return (source >= 0 && target >= 0) || (source < 0 && target < 0) ? target : -target;
+}
+
+
+} // namespace Poco