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114 lines
4.2 KiB
114 lines
4.2 KiB
3 days ago
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/****************************************************************************
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**
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** https://www.qxorm.com/
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** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
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**
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** This file is part of the QxOrm library
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any
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** damages arising from the use of this software
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**
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** Commercial Usage
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** Licensees holding valid commercial QxOrm licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Lionel Marty
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file 'license.gpl3.txt' included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met : http://www.gnu.org/copyleft/gpl.html
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**
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** If you are unsure which license is appropriate for your use, or
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** if you have questions regarding the use of this file, please contact :
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** contact@qxorm.com
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**
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****************************************************************************/
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#ifndef _QX_IS_SMART_PTR_TO_POD_H_
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#define _QX_IS_SMART_PTR_TO_POD_H_
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#ifdef _MSC_VER
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#pragma once
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#endif
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/*!
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* \file is_smart_ptr_to_pod.h
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* \author Lionel Marty
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* \ingroup QxTraits
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* \brief qx::trait::is_smart_ptr_to_pod<T>::value : return true if T is a smart-pointer of boost, Qt or QxOrm libraries and (*T) is a POD type (char, int, long, etc.), otherwise return false
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*/
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#include <QxTraits/is_smart_ptr.h>
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#include <QxTraits/is_qx_pod.h>
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namespace qx {
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namespace trait {
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/*!
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* \ingroup QxTraits
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* \brief qx::trait::is_smart_ptr_to_pod<T>::value : return true if T is a smart-pointer of boost, Qt or QxOrm libraries and (*T) is a POD type (char, int, long, etc.), otherwise return false
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*/
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template <typename T>
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class is_smart_ptr_to_pod
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{
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private:
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#ifdef _QX_ENABLE_BOOST
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::scoped_ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::shared_ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::weak_ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::intrusive_ptr<U> &);
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#endif // _QX_ENABLE_BOOST
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedDataPointer<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedPointer<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QWeakPointer<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const qx::dao::ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::unique_ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::shared_ptr<U> &);
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template <typename U>
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static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::weak_ptr<U> &);
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static int removeSmartPtr(...);
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static T t;
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public:
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enum { value = (qx::trait::is_smart_ptr<T>::value && (sizeof(qx::trait::is_smart_ptr_to_pod<T>::removeSmartPtr(t)) == sizeof(char))) };
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typedef typename std::conditional<qx::trait::is_smart_ptr_to_pod<T>::value, std::true_type, std::false_type>::type type;
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};
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} // namespace trait
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} // namespace qx
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#endif // _QX_IS_SMART_PTR_TO_POD_H_
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