mirror of
https://github.com/pocoproject/poco.git
synced 2025-01-03 06:53:45 +01:00
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
//
|
|
// FPEnvironment_WIN32.cpp
|
|
//
|
|
// $Id: //poco/svn/Foundation/src/FPEnvironment_WIN32.cpp#2 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Core
|
|
// Module: FPEnvironment
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person or organization
|
|
// obtaining a copy of the software and accompanying documentation covered by
|
|
// this license (the "Software") to use, reproduce, display, distribute,
|
|
// execute, and transmit the Software, and to prepare derivative works of the
|
|
// Software, and to permit third-parties to whom the Software is furnished to
|
|
// do so, all subject to the following:
|
|
//
|
|
// The copyright notices in the Software and this entire statement, including
|
|
// the above license grant, this restriction and the following disclaimer,
|
|
// must be included in all copies of the Software, in whole or in part, and
|
|
// all derivative works of the Software, unless such copies or derivative
|
|
// works are solely in the form of machine-executable object code generated by
|
|
// a source language processor.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
|
|
#include "Poco/FPEnvironment_WIN32.h"
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
FPEnvironmentImpl::FPEnvironmentImpl()
|
|
{
|
|
_env = _controlfp(0, 0);
|
|
}
|
|
|
|
|
|
FPEnvironmentImpl::FPEnvironmentImpl(const FPEnvironmentImpl& env)
|
|
{
|
|
_env = env._env;
|
|
}
|
|
|
|
|
|
FPEnvironmentImpl::~FPEnvironmentImpl()
|
|
{
|
|
_controlfp(_env, MCW_RC);
|
|
}
|
|
|
|
|
|
FPEnvironmentImpl& FPEnvironmentImpl::operator = (const FPEnvironmentImpl& env)
|
|
{
|
|
_env = env._env;
|
|
return *this;
|
|
}
|
|
|
|
|
|
void FPEnvironmentImpl::keepCurrentImpl()
|
|
{
|
|
_env = _controlfp(0, 0);
|
|
}
|
|
|
|
|
|
void FPEnvironmentImpl::clearFlagsImpl()
|
|
{
|
|
_clearfp();
|
|
}
|
|
|
|
|
|
bool FPEnvironmentImpl::isFlagImpl(FlagImpl flag)
|
|
{
|
|
return (_statusfp() & flag) != 0;
|
|
}
|
|
|
|
|
|
void FPEnvironmentImpl::setRoundingModeImpl(RoundingModeImpl mode)
|
|
{
|
|
_controlfp(mode, MCW_RC);
|
|
}
|
|
|
|
|
|
FPEnvironmentImpl::RoundingModeImpl FPEnvironmentImpl::getRoundingModeImpl()
|
|
{
|
|
return RoundingModeImpl(_controlfp(0, 0) & MCW_RC);
|
|
}
|
|
|
|
|
|
} // namespace Poco
|