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**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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****************************************************************************/
#ifndef QTCONCURRENT_EXCEPTION_H
#define QTCONCURRENT_EXCEPTION_H
#include <QtCore/qglobal.h>
#ifndef QT_NO_QFUTURE
#include <QtCore/qatomic.h>
#ifndef QT_NO_EXCEPTIONS
# include <exception>
#endif
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
namespace QtConcurrent
{
#ifndef QT_NO_EXCEPTIONS
class Q_CORE_EXPORT Exception : public std::exception
{
public:
virtual void raise() const;
virtual Exception *clone() const;
};
class Q_CORE_EXPORT UnhandledException : public Exception
{
public:
void raise() const;
Exception *clone() const;
};
namespace internal {
class Base;
class ExceptionHolder
{
public:
ExceptionHolder(Exception *exception = 0);
ExceptionHolder(const ExceptionHolder &other);
void operator=(const ExceptionHolder &other);
~ExceptionHolder();
Exception *exception() const;
Base *base;
};
class Q_CORE_EXPORT ExceptionStore
{
public:
void setException(const Exception &e);
bool hasException() const;
ExceptionHolder exception();
void throwPossibleException();
bool hasThrown() const;
ExceptionHolder exceptionHolder;
};
} // namespace internal
#else // QT_NO_EXCEPTIONS
namespace internal {
class Q_CORE_EXPORT ExceptionStore
{
public:
ExceptionStore() { }
inline void throwPossibleException() const {}
};
} // namespace internal
#endif
} // namespace QtConcurrent
QT_END_NAMESPACE
QT_END_HEADER
#endif // QT_NO_CONCURRENT
#endif
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