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is_qt_scoped_ptr.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** http://sourceforge.net/projects/qxorm/
    00005 ** Original file by Lionel Marty
    00006 **
    00007 ** This file is part of the QxOrm library
    00008 **
    00009 ** This software is provided 'as-is', without any express or implied
    00010 ** warranty. In no event will the authors be held liable for any
    00011 ** damages arising from the use of this software.
    00012 **
    00013 ** GNU Lesser General Public License Usage
    00014 ** This file must be used under the terms of the GNU Lesser
    00015 ** General Public License version 2.1 as published by the Free Software
    00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
    00017 ** packaging of this file.  Please review the following information to
    00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00020 **
    00021 ** If you have questions regarding the use of this file, please contact :
    00022 ** contact@qxorm.com
    00023 **
    00024 ****************************************************************************/
    00025
    00026 #if (QT_VERSION >= 0x040600)
    00027 #ifndef _QX_IS_QT_SCOPED_PTR_H_
    00028 #define _QX_IS_QT_SCOPED_PTR_H_
    00029
    00030 #ifdef _MSC_VER
    00031 #pragma once
    00032 #endif
    00033
    00041 #include <QtCore/qscopedpointer.h>
    00042
    00043 #include <boost/mpl/if.hpp>
    00044 #include <boost/mpl/logical.hpp>
    00045
    00046 namespace qx {
    00047 namespace trait {
    00048
    00053 template <typename T>
    00054 class is_qt_scoped_ptr
    00055 {
    00056
    00057 private:
    00058
    00059    template <typename V> static char isSmartPtr(QScopedPointer<V>);
    00060    static int isSmartPtr(...);
    00061    static T t;
    00062
    00063 public:
    00064
    00065    enum { value = (sizeof(qx::trait::is_qt_scoped_ptr<T>::isSmartPtr(t)) == sizeof(char)) };
    00066
    00067    typedef typename boost::mpl::if_c<qx::trait::is_qt_scoped_ptr<T>::value,
    00068                                      boost::mpl::true_,
    00069                                      boost::mpl::false_>::type type;
    00070
    00071 };
    00072
    00073 } // namespace trait
    00074 } // namespace qx
    00075
    00076 #endif // _QX_IS_QT_SCOPED_PTR_H_
    00077 #endif // (QT_VERSION >= 0x040600)
    00078
    00079 #if (QT_VERSION < 0x040600)
    00080 #ifndef _QX_IS_QT_SCOPED_PTR_H_
    00081 #define _QX_IS_QT_SCOPED_PTR_H_
    00082 namespace qx { namespace trait {
    00083 template <typename T>
    00084 class is_qt_scoped_ptr
    00085 { public: enum { value = false }; typedef boost::mpl::false_ type; };
    00086 } } // namespace qx::trait
    00087 #endif // _QX_IS_QT_SCOPED_PTR_H_
    00088 #endif // (QT_VERSION < 0x040600)

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